Hp XP Racks User Manual

HP XP7 for Business Continuity ManagerUser GuideAbstractThis manual describes how to use the following program products: HP XP7 for Business Continuit

Operating an Open/MF consistency group ...339Resynchronizing an Open/MF consisten

Performing a Backup Using the NORMAL ATTIME Suspend Function (for TCA)shows an example of performing a backup using the NORMAL ATTIME Suspend function

Figure 54 BC Z Backup configuration example using the NORMAL ATTIME Suspend functionBefore backup using the NORMAL ATTIME Suspend function, the normal

Cnt Ac-J Z ATTIME Suspend functionThe Cnt Ac-J Z ATTIME Suspend function enables the followings on a Business Copy Z copy groupthat is linked with Con

A backup of the Continuous Access Journal Z P-VOL at 2007/1/1 10:00 can be acquired in theBusiness Copy Z S-VOL.Relationship Between the ATTIME Suspen

2. The copy group starts being suspended when the 10:00:05 update journal, which wascreated after the Cnt Ac-J Z ATTIME suspend time (10:00:00), is de

Figure 59 Copy-group suspension due to a timeoutIn the above diagram, the specified ATTIME suspend time is 10:00:00 and the specifiedtimeout time is 1

Table 27 Differences in functionality between the NORMAL ATTIME Suspend function and the CntAc-J Z ATTIME Suspend functionCnt Ac-J Z ATTIME suspendfun

Because the remote scan uses the Remote DKC Control function, it is necessary to set a commanddevice and a route list. Also, the disk configuration in

NG scanThe volumes on a storage system that is directly connected to a host (volumes that are not definedin the operating system I/O configuration def

Figure 62 Operational image of an NG scan when a locally scanned volume is usedCopy types for which a copy group including Non Gen'ed volumes can

Preparing...371Recovering...

3. Define a Business Copy copy group by using volumes detected by executing an NG scan ona remote storage system (for P-VOLs) and executing a local sc

3. Define a Continuous Access Journal Z copy group by using volumes detected by executing aremote scan on a remote storage system (for P-VOLs) and exe

For Business Copy ZYou do not need a command device to perform operations on Non Gen'ed volumes because ofusing the Gen'ed volumes that are

The available path type differs for each copy type as shown in the following table.Path TypeCopy typeInter-disk controller logicalpathInter-control un

Figure 65 Overview of the inter-control unit logical path (forward direction)When the Reverse Resync function is used, an inter-control unit logical p

controller logical paths can be assigned for each journal group. Path group IDs are set for thefollowing purposes:• By specifying path group IDs for j

Figure 66 Overview of the inter-disk controller logical pathFunctions that monitor events and errorsThe commands that monitor events and errors are th

Table 28 Differences in functionality between the YKEWAIT command and the YKWATCH commandHow to report thestatus transitionsHow to monitorthe copy pai

4 Preparing to use Business Continuity ManagerThis chapter explains the preparations required for using Business Continuity Manager. For adescription

Specifying the Business Continuity Manager Log output destinationBusiness Continuity Manager collects information about the following three types of o

Failback to the Primary Site...409Performing Local Site Storage

together with TrueCopy Asynchronous for Mainframe or Continuous Access Journal Z. Theinformation collection interval for the Usage monitor must be 10

Figure 69 Relationship between Non Gen'ed DAD ID and DAD ID in an NG ScanNOTE: When using device address domain IDs:• Use the same DAD ID for vol

ISPF panel, the change is applied to a configuration file. There are the following five types ofconfiguration files, which are each XML files with the

Table 30 Configuration file detailsDisk configuration definition fileDescriptionItemprefix.DSK.SNnnnnn.dad-idwhere:Naming conventionnnnnn = storage sy

Business Continuity Manager creates this file for the firstdevice address domain of the route when the route listdefinition has completed.Used to regi

NOTE: For configurations where the same storage system is connected from hosts at differentsites, the same volume might have different device numbers.

For information about how to perform an NG scan from the ISPF panel, see “NG scan procedure”(page 588).Performing a remote scan to acquire remote stor

NOTE: If no route list has been defined, you can suppress the display of the LOAD Optionpanel (that otherwise would be displayed after route list crea

The type of the logical path you establish is determined by the copy type:• Inter-control unit logical path: Enables Continuous Access Synchronous Z o

For details about creating an inter-control unit logical path that is dedicated to the command device,see “Creating an inter-control unit logical path

Failback...457Performing primary hos

Establishing a logical path in the reverse directionThe procedure for establishing a logical path in the reverse direction is the same as the procedur

To change path group IDs for an existing journal group:1. Dissolve the copy pairs of the journal group.From the Manage Copy Groups panel, dissolve the

Configuring routes and command device linesThis section explains how to configure routes and command device lines.To configure routes:1. Identify the

Figure 71 Example of defining a route listTo define the route list for the configuration in the figure above:1. Define the route list ID (UR2DC).2. De

Figure 72 Image of defining the route listThe following figures show a configuration example and an image of defining multiple commanddevice lines for

Figure 73 Example of defining the route list (when multiple command device lines are defined)Figure 74 Image of defining the route list (when multiple

is, the command device used by Business Continuity Manager on the primary site cannot beused by Business Continuity Manager on the secondary site.• A

Deleting command devicesDelete command devices in the reverse order of the route list definition, starting from those furthestfrom the host to those c

Deleting command devices not registered in a route listTo delete command devices not registered in a route list, delete them from the Extra CommandDev

Supporting a Continuous Access Journal Z copy group configurationTo create an inter-disk controller logical path dedicated to the command device:1. Es

Operating procedure during a primary site storage system failure (with no information lost frommemory)...

Figure 78 Example of command device and route list definitions for using the Continuous AccessSynchronous Consistency Preservation function• The route

When the Reverse Resync function is used only from the primary siteWhen you want to use the Reverse Resync function from the Business Continuity Manag

Configuring an environment so that Non Gen'ed volumes can be usedThis section explains how to define an environment so that Non Gen'ed volum

Table 33 Required configuration files (NG Scan) (continued)RemarksDescriptionItem--Business Copy Z copy groupdefinition file• Device address domain ID

5 Configuration definitionsThis chapter describes the configuration definition procedures for managing replication packagesfor multiple data center co

Table 34 Prerequisite hardware (2DC configuration)RemarksDescriptionItemInstallation of a host at the secondarysite is optional.The most common config

Table 36 Required configuration files (2DC configuration)RemarksDescriptionItem—Disk configuration definition files arerequired at the primary site an

Table 37 How to prepare the configuration files at each site (2DC configuration) (continued)How to PrepareContentsFile TypeAt the Secondary SiteAt the

Figure 81 Process flow for defining a 2DC configuration with a host at the secondary site#1 This procedure is not required if the path has been establ

Figure 82 (page 149) shows the process flow for defining a 2DC configuration without a host atthe secondary site. The step numbers indicated in Figure

Recovering...569Operating procedure duri

To define a 2DC Configuration, do the following from the primary site (the step numbers correspondsto the numbers indicated in Figure 81 (page 148)):1

For Continuous Access Synchronous Z or TrueCopy Asynchronous for Mainframe copy groups,establish the inter-control unit logical paths.For details on h

8. Define a path set consisting of the logical paths in the reverse direction (from the secondarysite to the primary site) from the primary site or sp

10. Register a command device for the reverse direction in the storage systems of the secondaryand primary sites from the secondary site.For details o

A 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration exampleFigure 83 (page 154) shows an example of a 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configur

1Replication between models of XP arrays is limited to the current model and two previous generations. For XP7 storage,replication is supported with X

Table 40 Required Configuration Files (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) Configuration) (continued)RemarksDescriptionItemThis item is not necessar

Table 42 How to Prepare the Configuration Files at each site (3DC Cascade (Cnt Ac-S Z x Cnt Ac-JZ) Configuration) (continued)How to PrepareContentsFil

Steps on the primary host (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration)1. Scan the storage system at the primary site.Perform a scan over a ra

From the Insert Remote Route Entry panel, add route entries for the intermediate or remotesite. The Insert Remote Route Entry panel is displayed by sp

Adding the copy pair to the copy group (Business Copy Z)...647Defining the copy group ID and copy group at

Perform a scan over a range that contains volumes to be defined in the copy group.This creates disk configuration definition file for the intermediate

9. Perform a remote scan of the storage systems of the remote sites:Perform a scan over a range that contains volumes to be defined in the copy group.

A CU to be specified for a path set must include a volume to be defined in a Cnt Ac-S copygroup and a command device for the reverse direction.3. Crea

For details on how to register a command device in a storage system, see “Registering acommand device in a storage system” (page 634).6. Perform a rem

For details on how to register a command device in a storage system, see “Registering acommand device in a storage system” (page 634),9. Perform a rem

11. From the primary host, make sure that the status of the Continuous Access Synchronous Z andContinuous Access Journal Z copy groups is SIMPLEX, and

13. Transfer the created copy group definition file from the primary site to the secondary site.The primary host and the secondary host must use the s

Preparing hardware (3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration)The following tables list the prerequisite hardware and storage system setting

Table 45 Required configuration files (3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration) (continued)RemarksDescriptionItemThis item is not necessar

Table 46 Required route list (3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration) (continued)Required route listRemote site stateIntermediatesite sta

Operands...682Example...

Table 47 How to prepare the configuration files at each site (3DC Cascade (Cnt Ac-J Z x Cnt Ac-JZ) configuration) (continued)How to prepareContentsFil

3. Scan the remote site from the remote host.4. Transfer the scan results of each site to all other sites so that each site will have the scan results

3. From the primary host, establish inter-disk controller logical paths (Primary → Intermediate,and Primary → Remote).4. From the primary host, regist

Steps at the intermediate site1. From the intermediate host, define a path set consisting of inter-disk controller logical paths(Intermediate → Primar

4. From the intermediate host, register a command device for the storage systems at theintermediate site, primary site, and remote site.Steps at the r

3. From the remote host, establish inter-disk controller logical paths (Remote → Intermediate, andRemote → Primary).4. From the remote host, register

4. Create a copy pair for the Continuous Access Journal Z copy group between the primary siteand the intermediate site.5. Create a copy pair for the C

Preparing the hardware (3DC Multi-Target (Cnt Ac-S Z x Cnt Ac-J Z) configuration)Table 48 (page 177) lists the prerequisite hardware and Table 49 (pag

Table 50 Required Configuration Files (3DC Multi-Target (Cnt Ac-S Z x Cnt Ac-J Z) Configuration) (continued)RemarksDescriptionItemx Cnt Ac-J Z) config

Table 51 Required route list (3DC Multi-Target (Cnt Ac-S Z x Cnt Ac-J Z) configuration) (continued)Route list needed in Business Continuity ManagerRem

Format...705Operands...

Table 52 How to Prepare the Configuration Files at Each Site (3DC Multi-Target (Cnt Ac-S Z x CntAc-J Z) configuration) (continued)How to PrepareConten

In a 3DC Multi-Target (Cnt Ac-S Z x Cnt Ac-J Z) configuration, perform a scan from each hostinstead of a remote scan, ensuring that all the correct in

1. From the primary host, define a path set consisting of inter-control unit logical paths (Primary→ Local) and inter-disk controller logical paths (P

To see the procedure for loading and building a logical path, see “Establishing a logical path”(page 605).4. From the primary host, register a command

1. From the local host, define a path set consisting of inter-CU logical paths (Local → Primary)(or specify a path using Remote Web Console).2. From t

4. From the local host, register a command device for the storage system of the local site, primarysite, and remote site, in that order.For details on

1. From the remote host, create a path set consisting of inter-DKC logical paths (Remote →Primary) (or specify a path using Remote Web Console).2. Fro

4. From the remote host, register a command device for the storage system of the remote site,primary site, and local site, in that order.For details o

3. Transfer the configuration file to the local site and remote site.Defining a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configurationThis section e

Figure 86 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration examplePreparing the hardware (3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configura

What to do when an error occurs while creating a configuration file (for the ISPF panel)...734How To Correct an Error that Occurs While Creati

Table 54 Storage system setting items (3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration)SettingDescriptionItemUse Remote Web Console for the s

Table 55 Required configuration files (3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration) (continued)RemarksDescriptionItemMirror ID: A non-zer

Table 56 Required route list (3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration) (continued)Required route listRemote site 2stateRemote site 1s

Table 57 How to prepare the configuration files at each site (3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z)configuration) (continued)How to prepareConten

3. Scan remote site 2 from remote host 2.4. Transfer the scan results of each site to all other sites so that each site has the scan results fromall s

3. From the primary host, establish inter-disk controller logical paths (Primary → Remote 1, andPrimary → Remote 2).4. From the primary host, register

2. From remote host 1, create a route list (Remote 1 → Primary, and Remote 1 → Remote 2routes).3. From remote host 1, establish inter-disk controller

Settings for operations at remote site 21. From remote host 2, create a path set consisting of inter-disk controller logical paths (Remote2 → Primary,

4. From remote host 2, register a command device for the storage systems at remote site 2,primary site, and remote site 1.Creating copy groupsAll copy

Configuration Example (Delta Resync configuration)Figure 87 (page 199) shows an example of a delta resync configuration.Figure 87 Example of a Delta R

© Copyright 2007, 2014 Hewlett-Packard Development Company, L.P.Confidential computer software. Valid license from HP required for possession, use or

1 Overview of HP XP7 for Business Continuity ManagerThis chapter provides an overview of Business Continuity Manager and its features. This chapterals

Table 58 Prerequisite Hardware (Delta Resync Configuration)RemarksDescriptionItem—One host computer is required for each of the primary, local, and re

Table 60 Required Configuration Files (Delta Resync Configuration)RemarksDescriptionItem—Disk configuration definition files are required for theprima

Table 61 Required Route List (Delta Resync Configuration) (continued)Route lists needed inBusiness Continuity ManagerRemote siteconditionLocal sitecon

Table 62 How to Prepare the Configuration Files at Each Site (Delta Resync Configuration) (continued)How to PrepareContentsFile TypeAt the SecondarySi

This subsection explains the definition procedure in Business Continuity Manager. A delta resyncconfiguration is defined in the following procedure.1.

4. Transfer the disk configuration definition file containing the scan results of each site to theother sites so that each site will have the scan res

3. From the primary host, establish an inter-control unit logical path (Primary → Local) and aninter-disk controller logical path (Primary → Remote).2

4. From the primary host, register a command device for each of the storage systems of theprimary, local, and remote sites.Settings at the Local Site

3. From the local host, establish an inter-control unit logical path (Local → Primary) and aninter-disk controller logical path (Local → Remote).208 C

4. From the local host, register the command device for each of the storage systems at the local,primary, and remote sites.Settings at the Remote Site

Communication with HP XP7 Command View Advanced EditionHP XP7 Command View Advanced Edition is a series of storage management solutions that cancentra

3. From the remote host, establish an inter-disk controller logical path (Remote → Primary, Remote→ Local). This operation is not necessary when this

4. From the remote host, register the command device for each of the storage systems at theremote, primary, and local sites. This operation is not nec

7. Execute the YKQUERY command on the Cnt Ac-J Z copy group between the primary site andthe remote site to confirm that the following conditions exist

Figure 88 Copy Pair Status Transitions for Delta Resync PairsNOTE: Note the following when operating a delta resync configuration:• For the conditions

Table 63 List of Operations that Affect Other Copy Groups (Delta Resync Configuration)Influence on Other Copy GroupsOperationsDelta resync pairs move,

Figure 89 Example of a 2DC configuration with HyperSwap and Cnt Ac-J ZPreparing the hardware (HyperSwap)Table 64 (page 216) lists the prerequisite har

Table 64 Prerequisite Hardware (HyperSwap)RemarksDescriptionItemTPC-R is necessary at the primary site.One unit each for the primary and secondary sit

Table 66 Required Configuration Files (HyperSwap)RemarksDescriptionItem—Disk configuration definition files are required at theprimary storage system,

Table 67 How to Prepare the Configuration Files at Each Site (HyperSwap) (continued)How to PrepareContentsFile TypeAt the Secondary SiteAt the Primary

Performing a scan1. Perform a local scan for the primary storage system and local storage system at the primarysite.2. Perform a local scan for the re

This centralized management of both open-system and mainframe-system storage can provide anumber of advantages, including reduced operation times and

Setting up for performing operations at the primary site1. Define a path set consisting of the following logical paths on the primary host (or specify

3. Establish an inter-control unit logical path and inter-disk controller logical path on the primaryhost.4. Register a command device to be used for

5. Register a command device to be used for the HSRT2 route on the primary host.222 Configuration definitions

Setting up for performing operations at the secondary site1. Define a path set consisting of the following inter-disk controller logical paths on the

4. Register a command device to be used for the HSRT3 route on the secondary host.Making a copy group1. Make a PPRC (Continuous Access Synchronous Z)

4. Make sure that the Continuous Access Journal Z copy group has changed to the DUPLEX statuson the primary host. And then, execute the YKMAKE command

Figure 91 Example of a 4x4 Configuration (4 Storage System:4 Storage System Configuration)226 Configuration definitions

Figure 92 Example of a 4x4 Configuration (4 Storage System:1 Storage System Configuration)Defining a 4x4 configuration 227

Figure 93 Example of a 4x4 Configuration (1 Storage System:4 Storage System Configuration)The supervisor DKC is a storage system that is in charge of

Table 68 Prerequisite Hardware (4x4 Configuration) (continued)RemarksDescriptionItem—Inter-storage systems at the secondary site: Establish a unidirec

Continuous Access Synchronous Z (Cnt Ac-S Z)Performs and manages remote synchronized volume copy operations between a storage systemon the primary sit

Table 70 Required Configuration Files (4x4 Configuration)RemarksDescriptionItem—The disk configuration definition file isrequired at the primary and s

The journal group is registered in the EXCTG of the storage system when the YKMAKE commandis executed. If a copy pair has already been created, execut

4. Register the journal group (timer type: SYSTEM) in each of the primary site and secondarysite storage systems.Setting up a Business Continuity Mana

For details on the procedure, see the steps immediately before the creation of a copy group in“Definition procedure (2DC configuration)” (page 149).Cr

1. Change the copy pair status of the existing journal group to DUPLEX to make the copy directionthe same within the group.2. From the ISPF panel, def

Setting up a Business Continuity Manager Environment• Create a disk configuration definition file for each of the storage systems (P3 and S3).• Establ

1. Configure an arbitration command device on the subordinate disk controller (S3).2. Set up an arbitration path from the supervisor disk controller (

EXCTG Registration when the Copy Operation is Performed in the Forward DirectionTable 72 (page 237) through Table 74 (page 237) show the registration

Table 75 When Registering both EXCTG(Forward) and EXCTG(Reverse) (continued)EXCTG registration flagStorage system statusof the copy pair2Copy pair sta

Configuration example (4x4x4 Cascade)The following figure shows an example of a 4x4x4 Cascade configuration (2x2x2).Defining a 4x4x4 Cascade Configura

Continuous Access Journal Z (Cnt Ac-J Z)Writes updated data and control information to the master journal on the primary site. When thesecondary site

Figure 94 Example of a 4x4x4 Cascade configuration (2x2x2)Preparing Hardware (4x4x4 Cascade)The following tables describe the prerequisite hardware an

Table 78 Prerequisite Hardware (4x4x4 Cascade Configuration) (continued)RemarksDescriptionIteminformation about the availability of specificfeatures f

Table 80 Required Configuration files (4x4x4 Cascade)RemarksDescriptionItem--Disk configuration definition files are required for theprimary, intermed

Table 81 Required route list (4x4x4 Cascade configuration) (continued)Route list needed in Business Continuity ManagerRemote siteconditionIntermediate

1. Set up the storage system.Set the items that need to be set by using Remote Web Console from among the items listedin Table 79 (page 241).2. Set up

Setting up the Storage SystemSet up the following items by using Remote Web Console.1. Configure an arbitration command device on the subordinate disk

4. Transfer the disk configuration definition file containing the scan results of each site to all othersites so that each site will have the scan res

3. From the intermediate host, establish an inter-control unit logical path (Intermediate → Primary)and an inter-disk controller logical path (Interme

4. From the intermediate host, register a command device for each of the storage systems at theintermediate, primary, and remote sites.• Setting up an

3. From the primary host, establish an inter-control unit logical path (Primary → Intermediate).Defining a 4x4x4 Cascade Configuration 249

Grouping to simplify volume operationsBusiness Continuity Manager can group together copy pairs to improve the operability of managingreplicas of larg

4. From the primary host, register a command device for each of the storage systems at theprimary, intermediate, and remote sites.• Setting up an envi

2. From the remote host, define a route list (Remote → Intermediate → Primary route).3. From the remote host, establish an inter-disk controller logic

4. From the remote host, register a command device for each of the storage systems at the remote,intermediate, and primary sites.Creating a Copy Group

1. From the ISPF panel, define the following copy groups.• Define a Continuous Access Synchronous Z copy group container (TCCG) between theprimary sit

5. Execute the YKMAKE command for the Continuous Access Journal Z EXCTG (UREX).6. Execute the YKEWAIT GOTO(DUPLEX) command to continue monitoring unti

Figure 96 Configuration Example when Cnt Ac-J Z Copy Groups are Added for Expansion to a4x4x4 Cascade ConfigurationSetting up the Storage SystemSet up

Setting up a Business Continuity Manager Environment• Creating a disk configuration definition file1. From the remote host, perform a Local Scan on th

2. From the intermediate host, create a route list (Intermediate → Remote route).3. From the intermediate host, establish an inter-disk controller log

4. From the intermediate host, register a command device for the remote site storage system.• Setting up an environment at the primary site1. Add a re

2. From the primary host, register a command device for the remote site storage system.• Setting up an environment at the remote site1. From the remot

How to preserve consistencyTo define a copy group as a consistency group, a consistency group ID can be specified whenthe copy group is defined.Table

2. From the remote host, create a route list (Remote → Intermediate → Primary route).3. From the remote host, establish an inter-disk controller logic

4. From the remote host, register a command device for each of the storage systems at the remote,intermediate, and primary sites.Creating a Copy Group

2. Execute the YKSUSPND command for the Continuous Access Synchronous Z copy groupcontainer (TCCG) to suspend the copy pairs.To change the timestamp t

7. Execute the YKMAKE command for the Cnt Ac-J Z EXCTG (UREX).8. Execute the YKEWAIT GOTO(DUPLEX) command to continue monitoring until the status hasc

Figure 98 Configuration Example when a 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) Configuration isExpanded to a 4x4x4 Cascade ConfigurationSetting up the S

Creating a Copy GroupUsing the copy groups in the following figure as an example, the following describes how to definea copy group, change the existi

3. Execute the YKEWAIT GOTO(SUSPEND) command to continue monitoring until the status haschanged to SUSPOP.4. From the ISPF panel, change the timestamp

8. Use Remote Web Console to change the timer type of the existing journal groups containedin the Continuous Access Journal Z copy group (URG1) from L

15. Execute the YKMAKE SELECT(COND) command for the Continuous Access Journal Z EXCTG(UREX).16. Execute the YKEWAIT GOTO(DUPLEX) command for the Conti

Configuration example (4x4x4 Delta Resync configuration)The following figure shows an example of route lists, command devices, and paths defined in a4

Table 1 Methods for preserving consistency for each copy type (continued)Consistency preservation methodConsistency group IDspecification methodConsis

Figure 101 Example of copy groups defined in a 4x4x4 Delta Resync configuration (2x2x2)Preparing the hardware (4x4x4 Delta Resync configuration)The fo

Table 84 Storage system setting items (4x4x4 Delta Resync)SettingDescriptionItemUse Remote WebConsole for the setup.At least one arbitration command d

Table 85 Required configuration files (4x4x4 Delta Resync configuration) (continued)RemarksDescriptionItemA Cnt Ac-J Z copy group (EXCTG) with the fol

Table 87 How to prepare the configuration files at each site (4x4x4 Delta Resync configuration)How to prepareContentsFile typeAt the remote siteAt the

Definition procedure (4x4x4 Delta Resync configuration)Basically, a 4x4x4 Delta Resync configuration is defined in the following procedure.1. Set up t

1. From the primary host, perform a Local Scan on the primary site storage system.2. From the local host, perform a Local Scan on the local site stora

3. From the primary host, establish an inter-control unit logical path (Primary -> Local) and aninter-disk controller logical path (Primary -> R

Setting up an environment at the local site1. From the local host, define a path set that consists of an inter-control unit logical path (Local-> P

4. From the local host, register a command device for each of the storage systems at the local,primary, and remote sites.Setting up an environment at

3. From the remote host, establish inter-disk controller logical paths (Remote -> Primary andRemote -> Local).4. From the remote host, register

Consistency is preserved for the consistency group if the execution results of the YKQUERY commandare one of the following:• All the copy pairs are in

Figure 102 4x4x4 Delta Resync copy groupFigure 103 4x4x4 Delta Resync copy group (for TCCG error handling)280 Configuration definitions

Figure 104 4x4x4 Delta Resync copy group (for UREX1 error handling)Figure 105 4x4x4 Delta Resync copy group (for UREX2 error handling)Perform the foll

3. Define an EXCTG between the local and remote sites (UREX2 in Figure 102 (page 280)).• Make sure that the value (1, 2, or 3) you specify for MIRROR

10. Execute the YKMAKE command for the Cnt Ac-J Z EXCTG UREX1.11. Execute the YKEWAIT GOTO(DUPLEX) command to continue monitoring until the status has

13. Execute the YKEWAIT GOTO(HOLD) command to continue monitoring until the status haschanged to HOLD.14. Use Remote Web Console to set a Delta Resync

Figure 106 Example of a Configuration for Using the Cnt Ac-J Z ATTIME Suspend FunctionPreparing the hardware (Cnt Ac-J Z ATTIME Suspend)Table 88 (page

Table 89 Hardware Setting Items (Cnt Ac-J Z ATTIME Suspend)RemarksDescriptionItemBefore performing copy operations, this item must be setby using the

Table 90 Software Setting Items (Cnt Ac-J Z ATTIME Suspend) (continued)RemarksDescriptionItemCopy group definition file• The maximum number of Cnt AC-

Figure 108 Configuration Example for Using the Open/MF Consistency Preservation FunctionPreparing the hardware (Open/MF Consistency)Table 91 (page 288

Table 92 Hardware Setting Items (for using the Open/MF Consistency Preservation Function)RemarksDescriptionItemThis is required when a reverse directi

Figure 4 Effect of suspending an open/MF consistency groupWhen the YKSUSPND command is issued from Business Continuity Manager for a mainframe-systemc

1. Specify the same consistency group ID as the open system copy group that you want to preserveconsistency in the Setting C/T ID Attributes panel.2.

6 Importing copy groupsThis chapter explains how to generate copy group definitions by using CSV files, import definitionsto monitor PPRC copy pairs,

Attributes to be defined in a base copy group definition fileIn the base copy group definition file, you must define the value of the following attrib

CSV copy group rulesThis section describes the rules for defining a copy group when using a CSV file.• When the copy type is Business Copy:◦ If no con

Figure 110 Example of XP Continuous Access or XP Continuous Access Asynchronous copy groupdefinitionWhen the copy type is Continuous Access Journal, c

Figure 111 Example of a Continuous Access Journal copy group definitionGeneration example (CSV file for copy group definition)Figure 112 (page 295) sh

2. Upload the generated CSV file to the host on which Business Continuity Manager is running.3. Prepare a disk configuration definition file.If you do

Before executing the YKEXPORT command, allocate and catalog the CSV file datasets with theDD names below.• Pair information CSV file: OUTPAIR• EXCTG i

//SYSABEND DD SYSOUT=*//OUTPAIR DD DSN=BCM.PCSV,UNIT=3390,VOL=SER=BCMCSV,DISP=(NEW,CATLG),// SPACE=(CYL,(1,1)),// DCB=(RECF

5. Upload the corrected CSV files to the host on which Business Continuity Manager is running.6. Execute the YKIMPORT command.The copy group definitio

Contents1 Overview of HP XP7 for Business Continuity Manager ...20Why use Business Continuity Manager?...

Figure 5 (page 30) provides an overview of copy group containers. It depicts an operationperformed on the copy group container (copy group ID: CG.UR),

Figure 115 Example configuration for a PPRC copy pairPreparing the hardwareTable 95 (page 300) lists the prerequisite hardware for using the copy grou

Table 96 Software setting items (PPRC copy pairs)RemarksDescriptionItemIf the PPRC copy pair is in SIMPLEXstatus, the copy group definition file isSet

Table 98 Parameter values for the supported pair creation command (CESTPAIR) (continued)SupportedValueParameterCopy TypeYesNOYesAGnnXcmd_parmTCANoAVnn

Table 100 Parameter values for the supported pair resynchronization command (CESTPAIR)(continued)SupportedValueParameterCopy TypeNoYESMSGREQYesNOGener

Press the Enter key to generated copy group definition files named as follows:• BCM.MIGRATE.GRP.BCMTCS00• BCM.MIGRATE.GRP.BCMTCA00When monitoring only

Press the Enter key to generated copy group definition files named as follows:• BCM.MIGRATE.GRP.BCMSI00When monitoring only PPRC Cnt Ac-S Z/BC Z copy

Press the Enter key to generated copy group definition files named as follows:• BCM.MIGRATE.GRP.BCMTCS00• BCM.MIGRATE.GRP.BCMSI00Importing SMS storage

Figure 118 SMS storage group import processNOTE: Before you can use the SMS Storage Group Import function, the SMS storage, copy, andC/T groups must b

2. Prepare the file output in step one above as a Business Continuity Manager configuration file.The file name is prefix.SMS.SMS-storage-group-name.da

About the SMS list output functionBusiness Continuity Manager automatically creates a JCL to acquire DCOLLECT output in a filewith the SMS storage gro

Figure 6 Overview of arbitration processing in an extended consistency groupA supervisor DKC checks the timestamps of update journal data that has bee

7 Using Business Continuity ManagerThis chapter explains how to use Business Continuity Manager functionality.Before using copy pairsThis section expl

Table 101 Copy Pair Statuses for Commands with SELECT(COND) Specified Are Subject to Processing(continued)Copy pair statusCommandnameINVCONNDLHTRHERHL

is performed, if there is at least one copy pair subject to processing in the processing unit, the copypairs in the processing unit are subject to pro

scheduled suspend information. For this reason, execute the YKSUSPND command specifyingthe CANCEL parameter before executing the YKRESYNC command spec

Using configuration filesThe configuration files are used for ISPF panel operations and CLI command execution.Figure 119 (page 314) shows how configur

A single execution of the YKLOAD command might expand multiple REXX variable structures.Therefore, if you only drop certain REXX variable structures,

Operating a copy groupThis section explains how to perform operations on a copy group.Preparing to Use a Copy GroupPerform the following preparations

Figure 120 Copy Group Operation ImageInitial Status• Cnt Ac-J Z copy group: SIMPLEX• BC Z copy group: SIMPLEXBy using copy groups in a 2DC configurati

Wait until the status is SUSPOP, by using the YKEWAIT command.3. Creating an BC Z copy group (acquire a backup at the copy group operation start time)

Post-operation status (normal status)• Cnt Ac-J Z copy group: DUPLEX• BC Z copy group: SUSPOPBacking Up a Copy GroupTo acquire a backup after a copy g

Consistency times and consistency delta valuesThis section describes consistency times and consistency delta values. By referencing consistencytime an

Figure 123 Operational Testing (2/2)NOTE: When performing operational testing, remember the following:• A real disaster might take place while perform

Copy S-VOLs (SIS1 and SIS2) in the following figure contain the data that was backed up whenthe copy pairs were last suspended.Figure 124 Example of a

1. Execute the YKRESYNC command to resynchronize the BC Z copy group (GRPSI1) and put itin the DUPLEX status.• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX)

2. Execute the YKSUSPND command with the ATTIME parameter specified for the BC Z copygroup (GRPSI1) (to schedule a time for the copy pairs to be suspe

• Make sure that the Cnt Ac-J Z consistency time during a copy pair suspension was appropriate.• Make sure that the Cnt Ac-J Z copy pairs during a cop

The ATTIME suspension information is canceled when one of the following commands is executedfor the BC Z copy group:• The YKSUSPND command with the CA

Note the following points when you monitor the copy status:• To immediately detect that Cnt Ac-S Z copy groups have changed to the SUSPER status, youm

When the Cnt Ac-S consistency preservation function is used• If the SUSPER status is detected for a Cnt Ac-S copy group.Immediately execute the YKFREE

1. Add a copy pair to the copy group definitions for Cnt Ac-S Z and Cnt Ac-J Z:• After the copy group definitions have changed, transfer the changed c

3. From the primary host, make sure that the Cnt Ac-J Z copy group status is DUPLEX, and thenexecute the YKMAKE SELECT(COND) command for the copy pair

1When P-VOL data is not updated from a host or when the consistency group is in a suspended state, the consistencytime or EXCTG consistency time is no

3. Delete a copy pair from the Cnt Ac-S Z and Cnt Ac-J Z copy group definitions.After the copy group definitions have changed, transfer the changed co

that can be linked with FlashCopy, see “Prerequisites for the Compatible FlashCopy linkageconfiguration” (page 69).• Compatible FlashCopy linkage when

Compatible FlashCopy linkage using the Preserve Mirror function when the copy pair is in theDUPLEX status (Continuous Access Synchronous Z)As describe

When the Preserve Mirror function is used and Compatible FlashCopy is interruptedThe Preserve Mirror function does not synchronize Compatible FlashCop

2. If there is a copy pair in the CONSLOST status, dissolve that copy pair.3. Re-create the copy pair that was dissolved.For an example of recovering

2. Execute Compatible FlashCopy.3. Monitor the completion of copying.To monitor the completion of Compatible FlashCopy, run a script that includes the

Compatible FlashCopy can be executed when Cnt Ac-S Z copy pairs or Cnt Ac-J Z copy pairs arein the suspend status.To use the Compatible FlashCopy link

During Compatible FlashCopy processing, copy pairs in the DUPLEX status will change to thePending status. The copy pairs will return to the DUPLEX sta

Example of a script that determines the Compatible FlashCopy copy statusAn example of a script that monitors the Compatible FlashCopy copy status foll

Using an Open/MF consistency groupFor an Open/MF consistency group, you can simultaneously suspend open system and mainframesystem copy groups. This e

The following table lists the values of each item. The command to obtain this information was issuedat 10:00:05.Value descriptionURG02URG01ItemThe mos

Resynchronizing an Open/MF consistency groupAfter suspending an Open/MF consistency group, resynchronize the consistency group as follows:• Open syste

8 Maintenance and troubleshooting operationsThis chapter explains how to perform maintenance on hosts and storage systems and how to takeaction if a f

342 Maintenance and troubleshooting operations

Failback ProcedureThe following shows the failback procedure in a 2DC configuration.Using a 2DC Configuration 343

Notes on Failovers and Failbacks in a 2DC ConfigurationThe following are points to note when you perform failovers and failbacks in a 2DC configuratio

Notes on operating copy pairs• To manipulate a copy pair, make the copy pair’s volumes offline first.• When using the YKSUSPND command or YKRESYNC com

2. Return the S-VOL of the secondary site to the SIMPLEX status.To return the status to SIMPLEX, you can do either of the following:◦ From Remote Web

4. From the secondary host, execute the YKRESYNC REVERSE command for the Cnt Ac-J Z copygroup (reverse copy direction).5. Recover the applications on

1. Terminate all applications on the secondary host, and then place the data volume in the storagesystem at the remote site offline from the secondary

5. From the primary host, make sure that the Cnt Ac-J Z copy group status is DELETE, and thenperform the following copy operation for the Cnt Ac-S Z c

How to view consistency group and EXCTG valuesTable 4 (page 35) shows how to view consistency group and EXCTG values for TrueCopyAsynchronous for Main

7. From the primary host, make sure that the Cnt Ac-S Z copy group status is SWAPPING, andthen execute the YKRESYNC FORWARD command for the Cnt Ac-S Z

Table 105 Using a 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration (continued)See:DescriptionTargetMaintenanceor failure“Performing remote sitestor

Table 105 Using a 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration (continued)See:DescriptionTargetMaintenanceor failure“Operating procedureduring

4. Start operation at the intermediate site.Operation in a 2DC configuration starts between the intermediate site and the remote site.Failback1. Termi

• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX)6. Execute the YKEWAIT GOTO(SUSPEND) command and wait until the status of the ContinuousAccess Journa

Preparing1. From the primary site, execute the YKSUSPND command for the Continuous Access Journal Zcopy pair between the primary site and the intermed

4. Start intermediate site storage system maintenance.Operation in a 2DC configuration starts between the primary site and the remote site.Recovering1

4. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair between the intermediate site and the remote site.•

2. Start remote site storage system maintenance.Operation in a 2DC configuration starts between the primary site and the intermediate site.Recovering1

2. From the intermediate site, execute the YKSUSPND REVERSE command for the ContinuousAccess Journal Z copy pair between the primary site and the inte

Terminology by copy typeThe terminology used to describe similar situations can differ, depending on the type of copy grouprepresented. Table 6 (page

3. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and the intermedi

7. From the primary site, execute the YKRESYNC command for the Continuous Access Journal Zcopy pair between the intermediate site and the remote site.

Operating procedure during an intermediate site storage system failure (withinformation lost from memory)The following are the procedures that must be

Recovering1. Recover the intermediate site storage system from the failure.2. From the primary site, execute the YKDELETE command for the Continuous A

5. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair between the intermediate site and the remote site.•

2. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair between the primary site and the remote site.• YKQUE

3. From the primary site, execute the YKRESYNC command for the Continuous Access Journal Zcopy pair between the primary site and the intermediate site

5. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair between the intermediate site and the remote site.•

• YKQUERY• YKDELETE• YKEWAIT GOTO(SIMPLEX) NOINVALIDCHECK3. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy

Recovering1. Recover the remote site storage system from the failure.2. If the Continuous Access Journal Z copy pair between the intermediate site and

3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configurationIn this manual, a 3DC cascade configuration that consists of three Continuous Access Journal Zsites

2. From the intermediate site, execute the YKRESYNC REVERSE command for the ContinuousAccess Journal Z copy pair between the primary site and the inte

• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX)4. Execute the YKEWAIT GOTO(SUSPEND) command and wait until the status of the ContinuousAccess Journa

However, step 1 is different. From the intermediate site, execute the YKDELETE command for theContinuous Access Journal Z copy pair between the interm

Table 106 Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration (continued)See:DescriptionTargetMaintenanceor failuredirection of the other

Table 106 Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration (continued)See:DescriptionTargetMaintenanceor failureJournal Z copy pairs)”

3. From remote site 1, execute the YKSUSPND REVERSE command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1.•

5. From remote site 1, execute the YKMAKE command for the Continuous Access Journal Z copypair between remote site 1 and remote site 2.• YKQUERY• YKMA

Failback1. Terminate primary site storage system maintenance.2. From remote site 1, execute the YKRESYNC command for the Continuous Access Journal Zco

5. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1

7. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair between the primary site and remote site 2.• YKQUERY

3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configurationIn this manual, a 3DC multi-target configuration that consists of three Continuous Access Jour

Preparing1. From the primary site, execute the YKSUSPND command for the Continuous Access Journal Zcopy pair between the primary site and remote site

2. From the primary site, execute the YKRESYNC command for the Continuous Access Journal Zcopy pair between the primary site and remote site 1.• YKQUE

2. From remote site 1, execute the YKDELETE command for the Continuous Access Journal Zcopy pair between the primary site and remote site 2.• YKQUERY•

4. From remote site 1, execute the YKRESYNC REVERSE command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1.•

Failback1. Terminate primary site host maintenance.2. Stop operation at remote site 1.3. From the primary site, execute the YKDELETE command for the C

5. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1

Operating procedure during a primary site storage system failure (with informationlost from memoryThe following are the procedures that must be perfor

• YKQUERY• YKRESYNC REVERSE4. From remote site 1, execute the YKMAKE command for the Continuous Access Journal Z copypair between remote sites 1 and 2

2. From the primary site, execute the YKDELETE command for the Continuous Access Journal Zcopy pair between the primary site and remote site 2.• YKQUE

4. From the primary site, execute the YKDELETE command for the Continuous Access Journal Zcopy pair between remote sites 1 and 2.• YKQUERY• YKDELETE•

Journal Z is also used from the primary storage system for the remote storage system at the secondarysite.NOTE: A Continuous Access Journal Z copy pai

7. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1

Operating procedure during a primary site storage system failure (with no informationlost from memory)FailoverIf a failure, with no information lost f

2. Start operation at remote site 2.Operation starts at remote site 2.Failback1. Recover the storage systems at the primary site and remote site 1 fro

3. Re-register the journal group. Then, from the primary site, execute the YKMAKE command forthe Continuous Access Journal Z copy pair between the pri

6. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and remote site 2

Operating procedure during a storage system failure (with information lost frommemory) at remote site 1 or 2The following are the procedures that must

3. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair between the primary site and remote site 1.• YKQUERY

Recovering1. Recover the storage system at remote site 1 from the failure.2. From the primary site, execute the YKRESYNC command for the Continuous Ac

Primary site host failure (when operations can be performed on both ContinuousAccess Journal Z copy pairs)Perform the procedures below when the host a

3. From remote site 1, execute the YKRESYNC REVERSE command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1.•

3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration...55The 3DC Multi-Target (Cnt Ac-S Z x Cnt A

4x4x4 Cascade configurationThis configuration is a combination of a 4x4 configuration and a 3DC Cascade (Cnt Ac-S Z x CntAc-J Z) configuration. Betwee

Failback1. Recover the host at the primary site from the failure.2. Stop operation at remote site 1.3. From the primary site, execute the YKDELETE com

5. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1

Primary site host failure (when operations can be performed on only one of theContinuous Access Journal Z copy pairs)Perform the procedures below when

3. Start operation at remote site 1.Operation in a 2DC configuration is performed between remote site 1 and the primary site.Failback1. Recover the ho

4. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessJournal Z copy pair between the primary site and remote site 1

Operating procedure during a path failure between the storage systems at the primarysite and remote site 1, or at the primary site and remote site 2Th

Table 107 Using a Delta Resync Configuration (continued)SeeDescriptionTargetMaintenanceor Failureinformation lost frommemory)” (page 427)“Operating pr

Failover for Primary Site Storage System MaintenanceTo perform failover:1. Stop operation at the primary site.2. From the local site, execute the YKSU

• YKQUERY• YKRESYNC• YKEWAIT GOTO (DUPLEX)5. From the local site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YKRESYNC

• YKQUERY• YKSUSPND REVERSE• YKEWAIT GOTO(SUSPEND)7. Start primary site storage system maintenance.8. Start operation at the local site.Operation in t

4x4x4 Delta Resync configurationThis configuration is a combination of a 4x4 configuration and a Delta Resync configuration.Between the primary site a

• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)If the command is successful, the delta resync pair between the primary and remote sites firstchanges

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)6. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessSynchronous

7. From the primary site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)If the com

Preparing1. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessSynchronous Z copy pair.• YKQUERY• YKSUSPND FORWARD•

Recovering1. Terminate local site storage system maintenance.2. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessS

Preparing1. From the primary site, execute the YKSUSPND FLUSH command for the Continuous AccessJournal Z copy pair.• YKQUERY• YKSUSPND FLUSH• YKEWAIT

2. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessJournal Z copy pair.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(

2. From the local site, execute the YKSUSPND FLUSH command for the Continuous AccessJournal Z copy pair between the primary site and the remote site.•

• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)5. From the local site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YK

7. Start operation at the local site.Operation in the Delta Resync configuration is performed from the local site.Failback to the Primary SiteTo perfo

Compatible FlashCopy linkage configurationIn this configuration, the same volume is used for a Compatible FlashCopy S-VOL and a ContinuousAccess Synch

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)5. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessSynchronous

6. From the primary site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)If the com

Failover1. From the local site, execute the YKSUSPND REVERSE command for the Cnt Ac-S Z copy pair.• YKQUERY• YKSUSPND REVERSE• YKEWAIT GOTO(SUSPEND) N

3. Start operation at the local site.Operation in the 2DC configuration is performed from the local site.Failback1. Recover the primary site storage s

• YKQUERY• YKRECVER• YKEWAIT GOTO(SIMPLEX)4. Use Remote Web Console or Business Continuity Manager to reconfigure the paths requiredbetween the Primar

6. Use Remote Web Console to set a journal group for the primary storage system.7. From the local site, execute the YKMAKE HOLD command to create a de

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)12. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessSynchronous

13. From the primary site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)If the co

• YKQUERY• YKDELETE• YKEWAIT GOTO(SIMPLEX) NOINVALIDCHECK3. From the local site, execute the YKRESYNC REVERSE command for the Continuous AccessSynchro

• YKQUERY• YKMAKE HOLD• YKEWAIT GOTO(HOLD)5. Use Remote Web Console to reconfigure the delta resync control paths required between thePrimary → Local

operation that outputs reports and messages) before starting BCM Monitor. The operations arethen automatically performed as specified.Figure 7 (page 4

8. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessSynchronous Z copy pair.• YKQUERY• YKSUSPND FORWARD• YKEWAIT G

10. From the primary site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)If the co

Preparing• From the primary site, execute the YKSUSPND FORWARD Command for the Continuous AccessSynchronous Z copy pair.• YKQUERY• YKSUSPND FORWARD• Y

2. From the primary site, execute the YKDELETE command for the Continuous Access SynchronousZ copy pair.• YKQUERY• YKDELETE• YKEWAIT GOTO(SIMPLEX) NOI

5. Use Remote Web Console to reconfigure the journal group for the local site.6. From the primary site, execute the YKMAKE command for the Continuous

8. Use Remote Web Console to reconfigure the delta resync control paths required between thePrimary → Local and Local → Remote sites.Operation is retu

• YKQUERY• YKDELETE• YKEWAIT GOTO(SIMPLEX) NOINVALIDCHECK3. From the primary site, execute the YKDELETE command for the Continuous Access Journal Zcop

6. From the primary site, execute the YKMAKE command for the Continuous Access Journal Zcopy pair.• YKQUERY• YKMAKE• YKEWAIT GOTO(DUPLEX)7. From the p

8. Use Remote Web Console to reconfigure the delta resync control paths required between thePrimary → Local, Primary → Remote, and Local → Remote site

1. From the local site, execute the YKSUSPND FLUSH command for the Continuous AccessJournal Z copy pair between the primary site and the remote site.•

Functions that support copy group definitions and operations• Copy Group Configuration Check functionThis verifies that the copy group definition and

• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)4. From the local site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YK

5. Start operation at the local site.Operation in the Delta Resync configuration is performed from the local site.FailbackTo perform failback:1. Recov

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)5. Start operation at the primary site.6. From the primary site, execute the YKRESYNC FORWARD comman

7. From the primary site, execute the YKRESYNC DELTAJNL command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)If the com

Preparing• From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessSynchronous Z copy pair.• YKQUERY• YKSUSPND FORWARD• Y

2. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessSynchronous Z copy pair.• YKQUERY• YKRESYNC FORWARD• YKEWAIT G

Managing the HOLDTRNS StatusIf the pair status changes to HOLDTRNS before execution of the command YKRESYNC DELTAJNL(delta resync pair synchronization

• Case where the conditions described in No. 2 are not satisfied:Some Cnt Ac-S Z copy pairs have different copy direction from others.2. Execute the Y

local site toward the remote site during failback). Then wait until the copy pairs change to theHOLD status.Managing the HOLDER StatusIf the pair stat

1. Execute the YKRESYNC DELTAJNL ERRCHK command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL ERRCHKIf messages (YKZ251E, YKZ253E, YKZ255E, Y

Logical Path Control functionThis function establishes and deletes inter-disk controller logical paths or inter-control unit logicalpaths. It creates

3. Execute the YKRESYNC PREPARE command for the delta resync pair.• YKQUERY• YKRESYNC PREPARE• YKEWAIT GOTO(HOLD) NOINVALIDCHECKIf the command is succ

If the command completes successfully, delta resync with full copy specified will succeed. Ifthe command results in an error, eliminate the problem in

Execute the YKRESYNC DELTAJNL ERRCHK command for the delta resync pair.• YKQUERY• YKRESYNC DELTAJNL ERRCHKIf the YKRESYNC DELTAJNL ERRCHK command comp

Using a 2DC configuration with HyperSwap and Continuous Access JournalZThe following table describes the maintenance and troubleshooting operations fo

Table 110 Operation Examples in a 2DC Configuration with HyperSwap and Continuous AccessJournal Z (continued)SeeContentsTargetMaintenanceor Failureinf

Table 111 Differences in Functionality Between the Commands for Detecting HyperSwapsNoteCause ofHyperSwap errorsHow to detectHyperSwapsTo detect Hyper

2. Detect HyperSwaps of the Cnt Ac-S copy pairs with the HyperSwap attribute, and check thestatuses of the copy groups.• YKQUERY3. On the primary host

• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)After the commands finish successfully, the Cnt Ac-J Z copy pairs between the primary storagesystem

3. Restart the monitoring of HyperSwaps by using Business Continuity Manager.For details, see “Operation startup procedure” (page 454).4. Use TPC-R on

• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)7. On the primary host, execute the YKRESYNC DELTAJNL command for Cnt Ac-J Z copy pairsthat are in the

Table 9 List of functionalities dependent on the storage system (continued)Related sectionsXP7XP P9500XP24000/XP20000XP12000/XP10000Function nameVolum

9. Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs with theHyperSwap attribute.Cnt Ac-S copy pairs with the HyperSwap

• YKEWAIT GOTO(SUSPEND)3. On the primary host, execute the YKSUSPND REVERSE command for Cnt Ac-J Z copy pairsbetween the primary storage system and th

• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)If the command is successful, the copy direction of Cnt Ac-J Z copy pairs is reversed.5. Start operations at t

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)4. Start operations at the primary site.5. On the primary host, execute the YKRESYNC FORWARD command

7. Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs with theHyperSwap attribute.Operation is returned to normal.Perform

2. Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs with theHyperSwap attribute.Operation is returned to normal.Perform

RecoveringTo recover to normal operation:1. Finish remote storage system maintenance.2. On the primary host, execute the YKRESYNC command for Cnt Ac-J

FailoverTo perform a failover:1. Use Business Continuity Manager to detect whether a HyperSwap has been executed by TPC-Ron the primary host.2. Check

4. On the primary host, execute the YKRESYNC DELTAJNL command for Cnt Ac-J Z copy pairsthat are in the HOLD status and that are between the local stor

4. Use TPC-R on the primary host to set the volumes on a local storage system to P-VOLs and toset the volumes on a primary storage system to S-VOLs, s

Table 9 List of functionalities dependent on the storage system (continued)Related sectionsXP7XP P9500XP24000/XP20000XP12000/XP10000Function name“The

• YKMAKE HOLD• YKEWAIT GOTO(HOLD)9. Use Remote Web Console to set a Delta Resync control path required for each copy pair.10. Restart the monitoring o

• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)14. On the primary host, execute the YKRESYNC DELTAJNL command for Cnt Ac-J Z copy pairsthat are in th

16. Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs with theHyperSwap attribute.Cnt Ac-S copy pairs with the HyperSwap

• YKDELETE3. Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs with theHyperSwap attribute.4. On the primary host, monit

• YKMAKE HOLD• YKEWAIT GOTO(HOLD)6. Use Remote Web Console to configure a Delta Resync control path required for Cnt Ac-S copypairs with the HyperSwap

• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)11. On the primary host, execute the YKRESYNC DELTAJNL command for Cnt Ac-J Z copy pairsthat are in th

13. Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs with theHyperSwap attribute.Cnt Ac-S copy pairs with the HyperSwap

• YKDELETE• YKEWAIT GOTO(SIMPLEX)If the command is successful, the Cnt Ac-S copy pairs with the HyperSwap attribute are movedto the SIMPLEX status. Al

• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)If the command is successful, the copy direction of all Cnt Ac-J Z copy pairs is reversed.5. Perform

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)4. Start operations at the primary site.5. On the primary host, execute the YKRESYNC FORWARD command

Table 9 List of functionalities dependent on the storage system (continued)Related sectionsXP7XP P9500XP24000/XP20000XP12000/XP10000Function nameNoYes

• YKMAKE HOLD• YKEWAIT GOTO(HOLD)8. Restart the monitoring of HyperSwaps by using Business Continuity Manager.For details, see “Operation startup proc

2. Recover the path failure.RecoveringTo recover to normal operation:• Use TPC-R on the primary host to restart the copying of the Cnt Ac-S copy pairs

• YKQUERY• YKRECVER• YKEWAIT GOTO(SIMPLEX)6. For the local storage system, use Remote Web Console to set up a journal volume for Cnt Ac-JZ copy pairs.

10. Start operations at the primary site.Operation is returned to normal.Operating procedure during a local storage system failure (with no informatio

• YKQUERY• YKDELETE4. On the primary host, execute the YKDELETE command for Cnt Ac-J Z copy pairs between theprimary storage system and the remote sto

• YKQUERY• YKMAKE• YKEWAIT GOTO(DUPLEX)7. On the primary host, make Cnt Ac-J Z copy pairs that are in the HOLD status and that arebetween the local st

8. Use Remote Web Console to set a Delta Resync control path required for each copy pair.Operation is returned to normal.Operating procedure during a

2. On the primary host, execute the YKRESYNC command for Cnt Ac-J Z copy pairs between theprimary storage system and the remote storage system.• YKQUE

Table 112 Using a 4x4x4 Cascade ConfigurationSeeDescriptionTargetMaintenanceor Failure“Performing primary site storagesystem maintenance” (page 489)Su

Table 112 Using a 4x4x4 Cascade Configuration (continued)SeeDescriptionTargetMaintenanceor Failure“Operating procedure during aprimary site host failu

Figure 8 XP12000/XP10000 disk array storage system serial numbersIdentification on the XP 7 storage or XP24000/XP20000, XP P9500 disk arrayWhen the st

• YKQUERY• YKSUSPND REVERSE• YKEWAIT GOTO(SUSPEND)3. Start primary site storage system maintenance.4. Start operation at the intermediate site.Change

3. From the primary site, execute the YKRESYNC REVERSE command for the Continuous AccessSynchronous Z copy group container.• YKQUERY• YKRESYNC REVERSE

6. From the primary site, execute the YKRESYNC FORWARD command for the Continuous AccessSynchronous Z copy group container.The Continuous Access Journ

8. From the primary site, execute the YKRESYNC command for the Continuous Access Journal ZEXCTG.• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX)Operation is

Preparing1. From the primary site, execute the YKFREEZE command for the Continuous Access SynchronousZ copy group container.• YKFREEZE2. From the prim

• YKRUN4. Start intermediate site storage system maintenance.Recovering1. Terminate intermediate site storage system maintenance.2. From the primary s

• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX)3. Execute the YKEWAIT GOTO(SUSPEND) command, and wait until the status of the ContinuousAccess Journal Z cop

4. From the primary site, execute the YKRESYNC command for the Continuous Access Journal ZEXCTG.• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX)Operation is

Preparing1. From the primary site, execute the YKSUSPND command for the Continuous Access Journal ZEXCTG.• YKQUERY• YKSUSPND• YKEWAIT GOTO(SUSPEND)2.

Recovering1. Terminate remote site storage system maintenance.2. From the primary site, execute the YKRESYNC command for the Continuous Access Journal

Differences in functionality between NORMAL ATTIME and Cnt Ac-J Z ATTIME Suspendfunction...

Table 10 Business Continuity Manager identification of storage system models and serial numbersWhat is considered to be a storage systemserial numberW

Failover1. Stop operation at the primary site.2. From the intermediate site, execute the YKSUSPND REVERSE command for the ContinuousAccess Synchronous

• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)5. Perform primary site host maintenance.Change the configuration to a 4x4x4 Multi-Target configurati

• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEND)4. Start operation at the primary site.5. From the primary site, execute the YKRESYNC FORWARD comman

6. Execute the YKEWAIT GOTO(SUSPEND) command, and wait until the status of the ContinuousAccess Journal Z copy pair has changed to SUSPOP.7. From the

Operating procedure during a primary site storage system failure (with informationlost from memory)The following are the procedures to be performed wh

2. Start operation at the intermediate site.Change the configuration to a 4x4 configuration in which operation is performed from theintermediate site.

4. From the primary site, execute the YKMAKE REVERSE command for the Continuous AccessSynchronous Z copy pair whose S-VOLs are in the storage system i

6. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessSynchronous Z copy group container.• YKQUERY• YKSUSPND FORWARD

• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX)9. Execute the YKEWAIT GOTO(SUSPEND) command, and wait until the status of the ContinuousAccess Journ

10. From the primary site, execute the YKRESYNC command for the Continuous Access Journal ZEXCTG.• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX)Operation is

2 Business Continuity Manager with replication productsThis chapter describes the relationships among supported replication products and BusinessConti

FailoverThe failover procedure to be performed when a failure, with no information lost from memory,occurs in the primary site storage system is the s

4. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessSynchronous Z copy group container.• YKQUERY• YKSUSPND FORWARD

7. Execute the YKEWAIT GOTO(SUSPEND) command, and wait until the status of the ContinuousAccess Journal Z copy pair has changed to SUSPOP.8. From the

PreparingIf a failure has occurred in the intermediate site storage system, use the Continuous AccessSynchronous Z Consistency Preservation Function t

2. If a message (failure) is detected, from the primary site, execute the YKFREEZE command forthe Continuous Access Synchronous Z copy group container

4. From the primary site, execute the YKRUN command for the Continuous Access SynchronousZ copy group container.You can execute the YKRUN command even

3. From the primary site, execute the YKMAKE command for the Continuous Access SynchronousZ copy pair whose S-VOL is in the storage system in which th

5. From the primary site, execute the YKRECVER command for the Continuous Access Journal Zcopy pair whose P-VOL is in the storage system in which the

7. From the primary site, execute the YKRESYNC SELECT(COND) command for the ContinuousAccess Journal Z EXCTG.• YKQUERY• YKRESYNC SELECT(COND)• YKEWAIT

Operating procedure during a remote site storage system failure (with informationlost from memory)The following are the procedure to be performed when

Figure 11 Relationship between 4x4 configuration storage system settings and Business ContinuityManager definitionsTo register an EXCTG when the copy

2. From the primary site, execute the YKDELETE command for the Continuous Access Journal Zcopy pair whose S-VOL is in the storage system in which the

4. Use Remote Web Console to forcibly delete the journal group of the storage system in whichthe failure did not occur from the EXCTG.5. From the prim

6. From the primary site, execute the YKRESYNC SELECT(COND) command for the ContinuousAccess Journal Z EXCTG.• YKQUERY• YKRESYNC SELECT(COND)• YKEWAIT

Recovering1. Recover the remote site storage system from the failure.2. From the primary site, execute the YKRESYNC command for the Continuous Access

Failover1. From the intermediate site, execute the YKSUSPND REVERSE command for the ContinuousAccess Synchronous Z copy group container.• YKQUERY• YKS

3. From the intermediate site, execute the YKRESYNC REVERSE command for the ContinuousAccess Synchronous Z copy group container.• YKQUERY• YKRESYNC RE

3. From the primary site, execute the YKSUSPND FORWARD command for the Continuous AccessSynchronous Z copy group container.• YKQUERY• YKSUSPND FORWARD

6. Execute the YKEWAIT GOTO(SUSPEND) command, and wait until the status of the ContinuousAccess Journal Z copy pair has changed to SUSPOP.7. From the

PreparingIf a path failure has occurred between the primary site storage system and the intermediate sitestorage system, use the Continuous Access Syn

2. From the primary site, execute the YKFREEZE command for the Continuous Access SynchronousZ copy group container.• YKFREEZE3. From the primary site,

The 2DC configurationA 2DC configuration is used to perform a copy operation from the primary site to the secondarysite.Figure 12 (page 53) gives an e

4. From the primary site, execute the YKRUN command for the Continuous Access SynchronousZ copy group container.You can execute the YKRUN command even

• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX) NOINVALIDCHECK3. Execute the YKEWAIT GOTO(SUSPEND) command, and wait until the status of the ContinuousAcces

4. From the primary site, execute the YKRESYNC command for the Continuous Access Journal ZEXCTG.• YKQUERY• YKRESYNC• YKEWAIT GOTO(DUPLEX)Operation is

Table 113 Using a 4x4x4 Delta Resync configurationSee:DescriptionTargetMaintenanceor failurePage 534Execute Delta Resync, and then change the configur

NOTE: The term "storage system failure, with information lost from memory," indicates a failurethat causes the loss of information in memory

3. From the local site, execute the YKSUSPND REVERSE command for the Cnt Ac-S Z copy groupcontainer.• YKQUERY• YKSUSPND REVERSE• YKEWAIT GOTO(SUSPEND)

6. From the local site, execute the YKRESYNC DELTAJNL command for the local-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When comm

8. Start primary site storage system maintenance.Operation in a 4x4 configuration that originates from the local site starts.Failback1. Terminate prim

4. From the primary site, execute the YKSUSPND FLUSH command for the local-to-remote EXCTG.• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)5. From the

7. From the primary site, execute the YKRESYNC FORWARD command for the Cnt Ac-S Z copygroup container.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX

There are five types of 3DC configurations:• 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration• 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration•

8. From the primary site, execute the YKRESYNC DELTAJNL command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When

Preparing1. From the primary site, execute the YKFREEZE command for the Cnt Ac-S Z copy groupcontainer.• YKFREEZE2. From the primary site, execute the

• YKRUN4. Start local site storage system maintenance.Operation in a 4x4 configuration that originates from the primary site starts.Recovering1. Termi

2. From the primary site, execute the YKRESYNC FORWARD command for the Cnt Ac-S Z copygroup container.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX

Preparing1. From the primary site, execute the YKSUSPND FLUSH command for the primary-to-remoteEXCTG.• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)2

2. From the primary site, execute the YKRESYNC FORWARD command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX)Operati

2. From the local site, execute the YKSUSPND FLUSH command for the primary-to-remote EXCTG.• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)3. From the

5. From the local site, execute the YKRESYNC REVERSE command for the Cnt Ac-S Z copy groupcontainer.• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)6

7. Start primary site host maintenance.Operation in a 4x4x4 Delta Resync configuration that originates from the local site starts.Failback1. Terminate

4. From the primary site, execute the YKSUSPND FORWARD command for the Cnt Ac-S Z copygroup container.• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPEN

1The Delta Resync standby status must be defined between the local site and remote site.The 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configurationA 3DC C

7. From the primary site, execute the YKRESYNC DELTAJNL command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When

Failover1. From the local site, execute the YKSUSPND REVERSE command for the Cnt Ac-S Z copy groupcontainer.If you specify a route list that includes

3. From the local site, execute the YKRESYNC DELTAJNL command for the local-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When comm

4. From the local site, execute the YKRECVER command for the primary-to-remote Cnt Ac-J Zcopy pair whose P-VOL is located in the storage system in whi

6. From the local site, execute the YKMAKE SELECT(COND) command for the local-to-remoteEXCTG.The journal group defined as the EXCTG of Cnt Ac-J Z is r

8. From the local site, execute the YKMAKE HOLD command for the primary-to-remote Cnt Ac-JZ copy pair whose P-VOL is located in the storage system in

11. From the primary site, execute the YKSUSPND FORWARD command for the Cnt Ac-S Z copygroup container.• YKQUERY• YKSUSPND FORWARD• YKEWAIT GOTO(SUSPE

14. From the primary site, execute the YKRESYNC DELTAJNL command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When

FailoverThe failover procedure to be performed if a failure, with no information lost from memory, occursin the primary site storage system is the sam

4. From the primary site, execute the YKSUSPND FLUSH command for the local-to-remote EXCTG.• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)5. From the

Figure 14 Example of a 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configurationPerforming journal-based asynchronous copying (by using Continuous Access Jo

7. From the primary site, execute the YKRESYNC FORWARD command for the Cnt Ac-S Z copygroup container.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX

8. From the primary site, execute the YKRESYNC DELTAJNL command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When

Operating procedure during a local site storage system failure (with information lostfrom memory)The following are the procedures that must be perform

2. If the message (failure) is detected, execute the YKFREEZE command for the Cnt Ac-S Z copygroup container from the primary site.• YKFREEZE3. From t

4. From the primary site, execute the YKRUN command for the Cnt Ac-S Z copy group container.You can also execute the YKRUN command even before the sta

2. From the primary site, execute the YKDELETE command for the Cnt Ac-S Z copy pair whoseS-VOL is located in the storage system in which the failure o

4. From the primary site, execute the YKMAKE SELECT(COND) command for the Cnt Ac-S Zcopy group container.• YKQUERY• YKMAKE SELECT(COND)• YKEWAIT GOTO(

6. From the primary site, execute the YKMAKE HOLD command for the local-to-remote Cnt Ac-JZ copy pair whose P-VOL is located in the storage system in

8. From Remote Web Console, reconfigure the Delta Resync control paths from the local site tothe primary site and from the local site to the remote si

Recovering1. Recover the remote site storage system from the failure.2. From Remote Web Console or Business Continuity Manager, reconfigure the necess

Figure 16 Storage system maintenance at the local site (3DC Multi-Target (Cnt Ac-S Z x Cnt Ac-J Z)configuration)Figure 17 Storage system maintenance a

4. From the primary site, execute the YKDELETE command for the primary-to-remote Cnt Ac-J Zcopy pair whose S-VOL is located in the storage system in w

6. From the primary site, execute the YKQUERY command for the primary-to-remote EXCTG, andcheck the EXCTG status.• YKQUERY7. If the EXCTG remains, fro

• YKQUERY• YKMAKE SELECT(COND)9. From the primary site, execute the YKMAKE HOLD command for the local-to-remote Cnt Ac-JZ copy pair whose S-VOL is loc

10. From the primary site, execute the YKRESYNC FORWARD command for the primary-to-remoteCnt AC-J Z copy pair whose S-VOL is located in the storage sy

PreparingNo action is required.574 Maintenance and troubleshooting operations

Recovering• From the primary site, execute the YKRESYNC FORWARD command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLE

Failover1. From the local site, execute the YKSUSPND FLUSH command for the primary-to-remote EXCTG.• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)2.

4. From the local site, execute the YKRESYNC REVERSE command for the Cnt Ac-S Z copy groupcontainer.• YKQUERY• YKRESYNC REVERSE• YKEWAIT GOTO(DUPLEX)U

5. From the local site, execute the YKRESYNC DELTAJNL command for the local-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When comm

3. From the primary site, execute the YKSUSPND FLUSH command for the local-to-remote EXCTG.• YKQUERY• YKSUSPND FLUSH• YKEWAIT GOTO(SUSPEND)4. From the

Operations during primary site host maintenance or a host failureAs show in Figure 18 (page 58), during primary site host maintenance or a host failur

5. From the primary site, execute the YKRESYNC FORWARD command for the Cnt Ac-S Z copygroup container.• YKQUERY• YKRESYNC FORWARD• YKEWAIT GOTO(DUPLEX

7. From the primary site, execute the YKRESYNC DELTAJNL command for the primary-to-remoteEXCTG.• YKQUERY• YKRESYNC DELTAJNL• YKEWAIT GOTO(DUPLEX)When

PreparingIf a path failure occurs between the primary site storage system and the local site storage system,perform the preparation procedure before s

9 Using the ISPF panelsThis chapter explains how to use the ISPF panels to perform basic Business Continuity Manageroperations. The ISPF panels themse

2. Specify CONFIG01 in Configuration File Prefix and SF in Local Device Address Domain ID. Set Defaults

2008/03/19 14:56:47 Select one field from among Device Num, Volser, and Non Gen'ed b

13. Specify s in the AC column to display further detailed information. Control Unit Selection List Row 1 to 2 of 2

6. Press the F4=Discover key.The Scan Device Address Extent panel appears.7. Specify / for Device Num or Volser to set the scan target, and specify th

• Transfer the scan result to the primary site.The disk configuration definition file that has the same prefix is stored on the primary site.Menu Opt

1. Display the Main Menu panel and choose 1 Set Defaults.The Set Defaults panel to specify various default values is displayed.2. Specify CONFIG01 in

Figure 19 Example of a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configurationUsing Continuous Access Journal Z to perform an asynchronous remote cop

8. Press the F6=Scan key.The scan result appears. Scan Device Address Extent Command ===>

2008/03/19 15:04:44 Supported actions: s(Select), e(Edit devn)

Figure 130 Inter-DKC logical path definition exampleNOTE: Before defining a new path set, check the cable connection port number as described in“Estab

Press F3=Exit to create the Path Set, F12=Cancel to cancel. F1=Help F3=Exit F12=Cancel

Type . . . . . . . . DKC (DKC/CU) SHR . . . . . . . . Y (Y/N)

If the secondary site volume has not been scanned yet, since the secondary site deviceinformation cannot be selected in the Select Storage System pane

Allocating physical paths to logical pathsThis section explains how to allocate physical paths to logical paths.You do not need to perform this proced

4. Press the Enter key.You are returned to the Edit Port Definition panel. The physical path is now displayed in thispanel.

S/N Model IFType PathID CU SSID Primary . : 14002 USP 1515 00

Figure 131 Inter-CU logical path definition exampleAdding a logical path to path setTo add a logical path to the path set:1. In the Discover/Define Co

Creating an inter-control unit logical path dedicated to the command device ...138Supporting a Continuous Access Synchronous Z

Figure 21 Example of a Delta Resync configuration (after a Delta Resync is performed)2DC Configuration with HyperSwap and Continuous Access JournalA 2

F1=Help F3=Exit F5=Add F6=Sort F7=Backward F8=Forward 4. Press the F5=Add key.The Edit Logical Path Definition panel is disp

Supported action: s(Select) AC CU SSID

F1=Help F3=Exit F7=Backward F8=Forward F12=Cancel 15. Press the Enter key.The screen display changes to the Select SSID

1. In the Edit Logical Path Definition panel, specify e in the AC column on the Forward line, andthen press the Enter key (defining a path from the pr

5. Press the F3=Exit key.The screen display changes to the Edit Logical Path Definition panel.6. When defining a path from the secondary site to the p

Secondary : | Secondary Port Number . . 04 | | |

CAA6060 NOT LOADED b TESTPATH LOADED

Figure 132 Example configuration (2DC configuration)Defining a route list IDTo define a route list ID, UR2DC:1. Display the Discover/Define Configurat

3. Specify Route List ID (define the route list ID: UR2DC). Route Config Row 1 to 1 of 1 Command ==

1. Specify s in the AC column for the route list that defines the route. Route Config Row 1 to 2 of

Figure 22 Configuration before a HyperSwap is performedFigure 23 Configuration after a HyperSwap is performed (after a Delta Resync is performed)Busin

4. Specify s in the AC column for the storage system serial number and device address domainID pair that you want to select. .------------------------

1. In the Route List Information panel, specify i in the AC column for the first storage system. Route List Information

Route List Information Command ===> Scrol

F1=Help F3=Exit F5=Add F7=Backward F8=Forward F10=PrevF11=Next F12=Cancel

4. Specify e in the AC column for the first command device. Command Device Information Row 1 to 1 of 1 Command ===

DADID . : SF LA SN . . .: 14002 14001

In the Command Device Information panel, the command device line for the second route isdisplayed. Command Device Information

Defining a route list IDUsing the procedure described in “Defining a route list ID” (page 607) of “Defining a route list fora 2DC configuration” (page

Command ===> ADD Scroll ===> PAGE .------------------------------------------------------. 1/

.---------------------------------------------------------------. | Storage System Selection List Row 1 to 2 of 2 | | Command ===>

Synchronous Z copy pairs with the HyperSwap attribute can be monitored so that HyperSwappairs can be detected.• The Volume status monitoring functionA

1. In the Route List Information panel, specify i in the AC column for the first storage system ofthe route (primary→local).

2. Specify 2 for the selection field, and specify the device address domain ID and serial numberof the storage system that you want to add for DADID a

1. In the Route List Information panel, press the F5=Add key. Route List Information Command =

| F1=Help F7=Backward F8=Forward F12=Cancel | '---------------------------------------------------------------'4. Press

1. In the Route List Information panel, specify i in the AC column for the first storage system ofthe route (primary→remote).

| 2 1. A storage system discovered via a | | local scan or a remote scan |

1. Specify s in the AC column for the first storage system of the route for which you want to definethe command device line.

'-----------------------------------------' F1=Help F3=Exit F5=Add F7=Backward F8=Forward F10=Pr

6. Specify e in the AC column for the second command device. Command Device Information Row 1 to 1 of 1 Command ==

Defining the command device line (primary→remote)To define the command device line from the storage system that has the serial number 14002 tothe stor

Figure 24 A 4x4 configuration exampleThe 4x4x4 Cascade configurationThe 4x4x4 Cascade configuration is a combination of a 4x4 configuration and a 3DC

TIP: If you specify 1 for the selection field in the Add Route Entry panel in step 2 of “Definingthe remote site storage system (primary→remote)” (pag

Figure 134 Definition example of a route list (multiple command device lines)For details on how to perform the following operations, see the reference

1. Specify s in the AC column for the first storage system of the route in which a command deviceline is to be defined. Rout

4. Specify e in the AC column for the fist command device. Command Device Information Row 1 to 2 of 2 Command ===&

7. Specify an SSID, control unit, and command control address for the command device. Command Device Information Ro

Remote DKC Function . . . . . . . Y Preset RouteListID . . . . . . . . Preset Route Label . . . . . . . . Defaults and Options for Backgr

| Route List ID: | R | UR2DC |

2. Specify Local Device Address Domain ID, Remote DKC Function, and Preset RouteListID (thespecification of Preset Route Label is optional). Specify Y

4. Specify the scan range using the device addresses (CU and CCA) as the Remote Scaninformation. Scan Remote Device Address Exte

2. For the device belonging to the specified control unit, enter the dummy device number that isallocated first. CU Selection L

Figure 25 A 4x4x4 Cascade configuration exampleOperations during a host failure at the primary siteDuring a host failure at the primary site, the Reve

Storage System S/N : 14001 Model : USP uCode : 500970FF IFType : 1515 Control Unit . . . : 00

| When updating the Dummy Device Numbers, please confirm that any | | of the existing copy groups does not contain devices with the

Figure 135 Definition example of a copy group that is not a copy group containerBefore you define a copy group, make sure that you decide on values fo

| Press Enter to create the Copy Group, Cancel to cancel. | | |

2. Specify Devn or Volser of the primary site. Alternatively, select the device to be paired fromthe list of devices.When selecting a device to be pai

5. Press the Enter key.If the number of specified devices for the primary site and secondary site is different, the PairSelection List panel you are c

6. If there are no more additions to be made, press the F3=Exit key. If you want to add a copypair, press the F5=Add key.The created copy group (GRP1)

| | | C/T ID . . . . . . . (2-digit Hexadecimal) | | C

7. Specify copy group attributes..------------------------------------------------------------------. | Copy Group Attributes (CA)

5. Specify C/T ID (JNLG)..------------------------------------------------------------------. | Setting C/T ID Attributes

Figure 26 Example of a configuration after a failover during a host failure at the primary siteOperations during a storage system failure at the prima

Figure 136 Example of defining a copy group containerThis section explains the procedures that are required to define a copy group container. They are

| Secondary . . . . LA | | Copy Group Type . . CAJ / Use Container | |

Copy Group Type : UR Copy Group ID : GRP1UR2 Description . . . . . . . . . . . . . COPY GROUP 5

3. Specify d in the AC of the consistency group that you want to delete, and press the Enter key. Copy Group Detail Definitio

1. In the Copy Group Selection List panel, specify e in the AC, for the copy group container,and press the Enter key. Copy G

NOTE: If you specify a value other than a blank space for the arbitration command device inrelation to the supervisor disk controller, a pop-up panel

2. Specify l in the AC column of the Continuous Access Synchronous Z copy group for whichyou want to set the Open/MF Consistency attribute (Loading a

Suspending a copy groupTo suspend the copy group you loaded:1. In the Manage Copy Groups panel, specify u in the AC column of the copy group you wantt

Changing a copy group definition (setting the Open/MF Consistency attribute)To set the Open/MF Consistency attribute for a copy group definition:1. In

F1=Help F3=Exit F6=Sort F7=Backward F8=Forward F10=PrevInfo F11=NextInfo F12=Cancel3. Specify q in the AC column of the loaded c

Figure 27 Example of a configuration after failover during a storage system failure at the primarysite exampleThe 4x4x4 Delta Resync configuratonThe 4

******************************* Bottom of data ******************************** F1=Help F3=Exit F6=Sort F7=Backward F8=Forward F10=

| | | Wait transition to . . . . 1 1. Duplex | E |

Figure 138 Copy group configuration exampleIn this example, Business Continuity Manager on the Primary site executes all copy group operations.Status

AC Copy Group ID -------------------- Status ---------------------------- DUP1 NOT LOADED

4. Press the F3=Exit key.The copy pair statuses of copy group GRP2RSI display in the Copy Group Status Summarypanel (all statuses are Simplex because

In the Manage Copy Groups panel, Status changes to ESTABLISHED.3. Specify q in the AC column to check the copy pair statuses.

Copy Group ID . . . . . . . . . : GRP1UR Primary Device Addr. Domain . . : SF

8. Press the F3=Exit key.You are returned to the Manage Copy Groups panel. Manage Copy Groups Row 1 to 13 of

Supported actions: l(Load), q(Query), m(Make), u(sUspend), r(Resync), d(Dissolve), w(Watch), e(Ewait), c(reCover), v(query Verify), f(query

AC | Select pair establishment options: | ------- | Copy Group ID : GRP2RSI |

Figure 28 Example of a 4x4x4 Delta Resync configurationBy performing a Delta Resync when the operation site is changed from the primary site to the lo

Invalid State: 0 | No Delta: 0 | F1=Help F3=Exit F4=Refresh F5=Storage F6=Pairs 4. Pr

2. Specify each option. Manage Copy Groups Row 1 to 13 of 19 Command ===>

4. Specify q in the AC column to check the copy pair statuses. Manage Copy Groups Row 1 to 13 of 19 Command

10 Automatic operation using BCM MonitorThis chapter provides an overview of the BCM Monitor functions. It explains how to start and stopBCM Monitor,

Table 114 Overview of BCM Monitor parameter filesDescriptionParameter name (specifiedvalue)Parameter typeFile nameSpecifies the interval for monitorin

Figure 140 Example of BCM Monitor parameter filesOverview of the BCM Monitor functions 675

Figure 141 Behavior of BCM MonitorBCM Monitor operator commandsBy issuing operator commands for an instance of BCM Monitor that is running, you can dy

The monitoring status of a copy groupBCM Monitor can monitor one copy group at a time. In the CGMONSTAT parameter of the YKMONCGfile, if you specify A

identification-nameUsed to specify the identification name of the cataloged procedure for startup. This operanduniquely identifies each job when the s

BCM Monitor stops after it finishes all the processes up to the ACTION=STOPPOINT label name,which is specified in the YKMONCG file.If the specified la

The Compatible FlashCopy linkage configurationOverview of functionsA configuration in which a Compatible FlashCopy S-VOL and a Continuous Access Synch

Used to specify the identification name that was specified in the START command when BCMMonitor was started.ExampleTo forcibly stop the BCM Monitor in

NOTE:• If it takes a long time to perform an action, there will be a long delay before the operatorcommand is executed.• BCM Monitor can only accept a

ExampleTo display the values that are currently in effect for the parameters specified in the YKMONOPT filein the BCM Monitor instance whose cataloged

Use the following options to specify the information to be displayed.• SUMMARYNumber of copy pairs by copy pair status• DETAILDetails by copy pair• ST

If only the name of the cataloged procedure for startup was specified in the START command.MODIFYΔ1cataloged-procedure-for-startup-name,SETΔ1{CYLCETIM

F YKBCMMON,SET CYCLETIME=600To change the WAITTIMEOUT value to 360 for the BCM Monitor instance whose catalogedprocedure for startup name is YKBCMMON,

ExampleTo put the BCM Monitor instance whose identification name is YK to sleep for the followingconditions, enter the command as shown:• Point to put

Table 117 Logs collected in the BCM MonitorOutput LocationCollected InformationLog TypeSYSTSPRT or the consoleBCM Monitor log• Startup messages• Monit

Table 118 Events and actions to take when a BCM Monitor instance cannot start (continued)ActionEventCheck with the system administrator todetermine if

Figure 142 Example configuration of backup operation using BCM MonitorBackup operation flow“Flow of backup operation using BCM Monitor” (page 690) sho

Prerequisites for the Compatible FlashCopy linkage configurationThe following describes the prerequisites for linking Compatible FlashCopy.Storage sys

Figure 143 Flow of backup operation using BCM MonitorExample of creating the YKMONOPT file used for a backup operationFor this operation example, crea

# If the Copy Group status is SUSPOP, do the following actions: # Perform backup procedures. STAT

Figure 144 Example configuration of failure monitoring using BCM MonitorFailure monitoring flow“Flow of failure monitoring using BCM Monitor” (page 69

Figure 145 Flow of failure monitoring using BCM MonitorExample of creating a YKMONOPT file used for failure monitoringFor this operation example, crea

# If not, BCM Monitor will terminate. # If the Copy Group status is SUSPER, do the following actions: # Di

11 Linkage with Replication ManagerThis chapter explains how to perform operations when Business Continuity Manager is linked toReplication Manager. I

Figure 146 Overview of the operations that rely on the link to Replication ManagerOperations that can be performed from Replication Manager are descri

• split – Splitting the copy group• delete – Delete the copy groupMonitoring a copy group from Replication ManagerWhen the Business Continuity Manager

Figure 147 Configuration that can be achieved by linking to Replication ManagerConfiguring a Business Continuity Manager agentThis section describes h

either EDIT or MONITOR for a startup mode. To select a startup mode, assign the valuecorresponding to the desired mode in the MODE initialization para

Performing a scan...193Settings for operations at

Table 14 Copy pair conditions for Compatible FlashCopy linkage (continued)Copy pair status when linked with Compatible FlashCopyDifferential-datamanag

Operations after the configuration file is lockedA Business Continuity Manager agent with the LOCK(PREFIX) parameter specified, the ISPFpanel of Busin

(ii) Business Continuity Manager agent 3Because LOCK(CHECK) or LOCK(NONE) is specified, the agent does not attemptto lock the configuration file while

Figure 149 If the ISPF panel or BCM Monitor has already been started(i) Business Continuity Manager agent 1Because LOCK(PREFIX) is specified, while th

The BCM Monitor can also be used to share the same configuration file with otherusers.NOTE: If a configuration file is updated by another user, the Up

Starting a Business Continuity Manager agentTo start a Business Continuity Manager agent, use the START command.Business Continuity Manager agents res

STOP ∆1[cataloged-procedure-for-startup-name.]identification-nameIf only the name of the cataloged procedure for startup was specified in the START co

CANCEL∆1cataloged-procedure-for-startup-nameOperandscataloged-procedure-for-startup-nameUsed to specify the name of the cataloged procedure for startu

MODIFY YK,DISPLAY LOGLEVELYKY114I LOGLEVEL=2Changing the log output levelTo change the Business Continuity Manager agent log output level, use the MOD

Notes on updating configuration filesThis section contains notes on updating a configuration file:• Do not perform an update on a configuration file f

Table 122 Information output to logOutput LocationOutput InformationTrigger for the Log OutputSYSLOGInformation output in the YKY300I or YKY307I messa

Table 15 Continuous Access Synchronous Z copy group attributes that can be set when usingthe Preserve Mirror function (continued)DescriptionPossibilit

Table 122 Information output to log (continued)Output LocationOutput InformationTrigger for the Log OutputSYSABEND datasetA memory dump is output to t

Table 123 Events and actions to be taken when Business Continuity Manager agent cannot bestarted (continued)ActionEventand then restart Business Conti

12 TroubleshootingThis chapter describes the troubleshooting procedures provided by Business Continuity Manager:Troubleshooting FailuresBecause Busine

Executing the YKWATCH or YKQUERY command updates information such as the status of REXXvariables. Similarly, pressing the F4=Refresh key in the ISPF w

Perform the following to output ABEND dumps:• For scripts:Specify a SYSABEND DD statement for JCL.• For TSO/E:After logging on to the TSO/E terminal,

You can select whether to output Business Continuity Manager logs to an external dataset by usingthe system logger service or to output them to a sequ

Setting Access PrivilegesIf the System Authorization Facility (SAF) can be used, you must make sure that the user executingBusiness Continuity Manager

If a system name starts with a number, Business Continuity Manager forms the logstream name by taking the last five characters from the system name an

This size depends on the output frequency of the output of Business ContinuityManager log data to an external dataset and how Business Continuity Mana

Due to the restrictions of the system logger service, deleting a log stream while an application isconnected to the log stream results in an error. To

Figure 35 Same configuration for BC Z P-VOL and Cnt Ac-S Z, TCA, and Cnt Ac-J Z S-VOLFigure 36 The same configuration for BC Z S-VOL and Cnt Ac-S Z, T

Allocating a Log DatasetSpecify log datasets as follows:• For TSO/E, after logging on, use the ALLOC command to specify YKLOG01 DD and YKLOG02DD state

If a log dataset (YKLOG01 or YKLOG02) becomes full and the Business Continuity Manager logoutput destination is switched, the YKZ291I message or the Y

Specifying Log Data ConditionsFor the symbols used in the explanation on the format, see “Conventions in syntax explanations”(page 746).Control Statem

Example Control StatementsSpecify Business Continuity Manager logs whose log acquisition date is within the range from2004/03/24 00:00 to 2004/03/24 2

Table 129 Output format of Business Continuity Manager Log Data Output Tool (continued)DescriptionOutput ContentsLengthOffsetFor records other than th

• YKEWAIT• YKFREEZE• YKLOAD• YKMAKE• YKQEXCTG• YKQRYDEV• YKQRYPTH• YKQUERY• YKRECVER• YKRESYNC• YKRUN• YKSCAN• YKSTATS• YKSTORE• YKSUSPNDThere are two

6. Quit the ISPF editor.Using a Script for RetrievalTo use a script for retrieval:1. Create a dataset to which SYSLOG is to be output. The name of the

NOTE: When executing many CLI commands, the amount of information output to SYSLOGincreases accordingly.HyperSwap Completion DetectionFor 2DC configur

If a log dataset becomes full, delete and re-define the log stream by following the procedure below.The log dataset is deleted when the log stream is

Types of FailuresThe types of Cnt Ac-J Z failure are as follows:• Failure during a failover• PSOFF or severed power#• OthersLack of copy pairs◦◦ Inter

Configuration patterns that allow pair creationCopy pair creation is allowed in the following cases:• When a copy group includes only one consistency

Table 131 Procedures for Recovering from Each Failure Type (continued)Recovery ProceduresCause of FailureCopy Pair Status after a FailureFailure TypeS

Table 131 Procedures for Recovering from Each Failure Type (continued)Recovery ProceduresCause of FailureCopy Pair Status after a FailureFailure TypeS

Table 132 Recovering from Other Copy Pair FailuresVOLAVOLBS-VOLP-VOL–SWAPPINGSUSPCU/SUSPERDUPLEXSUSPCU/SUSPERDUPLEXSIMPLEXYKMAKE withDEVN specified(P)

Table 132 Recovering from Other Copy Pair Failures (continued)VOLAVOLBS-VOLP-VOL–SWAPPINGSUSPCU/SUSPERDUPLEXSUSPCU/SUSPERDUPLEXSIMPLEXYKMAKE (P)•N/AYK

What to do when an error occurs while creating a configuration file (for the ISPFpanel)This section describes what actions to take when an error occur

The following describes what to do for each of the above cases:• When the panel for creating or updating a configuration file reappears:◦ Remove the c

Causes of errors that might occur while creating or updating a configuration file and therecommended actionsTable 133 (page 736) describes the causes

Table 134 Causes and recommended actions for an error that might occur while creating or updating aconfiguration file (for YKBTSCAN) (continued)Recomm

13 Support and other resourcesContacting HPFor worldwide technical support information, see the HP Support Center:http://www.hp.com/go/hpscBefore cont

• Program Directory for IBM Library for REXX on zSeries Alternate Library, GI10-3243• DFSMSdfp Utilities, SC26-7343• MVS Initialization and Tuning Ref

Figure 38 When copy types are identical within a copy group container (BC Z, Cnt Ac-S Z, TCA, orCnt Ac-J Z)Figure 39 Copy group containers with an EXC

HP websitesFor additional information, see the following HP websites:• http://www.hp.com• http://www.hp.com/go/storage• http://www.hp.com/service_loca

Table 138 Document conventions (continued)ElementConventionWebsite addressesBlue, underlined text: http://www.hp.comBold text• Keys that are pressed•

14 Documentation feedbackHP is committed to providing documentation that meets your needs. To help us improve thedocumentation, send any errors, sugge

A About configurations for which the same command deviceis shared from multiple hostsThis appendix describes configurations for which the same command

For operation in this configuration, define command devices separately for the route in the forwarddirection and the route in the reverse direction so

For operation in this configuration, define different command devices for each host so that acommand device is not shared, and specify a separate APID

B Conventions in syntax explanationsTable 139 (page 746) lists the conventions used in syntax explanations.Table 139 Conventions in syntax explanation

Table 140 Syntax elementsExampleValid valueSyntax elementN/A0, 1, 2, 3, 4, 5, 6, 7, 8, or 9Numeric charactersABC.DEFA string or multiple substrings jo

Glossary0–9 (Numbers)2DC Two data center.2DC configuration A configuration in which remote copying is performed from the primary site to the secondary

AAP Application program.API Application programming interface.APID An ID for identifying the first DAD ID of a route. The same APID value is used for

NOTE: Consistency is preserved for copy group containers with an EXCTG ID specified.Configuration patterns that prohibit pair creationCopy pair creati

consistency time (C/T Time) The time indicated by the P-VOL I/O timestamp written to the S-VOL. If consistency ispreserved, it assures that the data s

disaster recoverytestingThis function disconnects the primary site copy pair from the secondary site copy pair and teststhe secondary site to determin

host identificationnameA name specified to identify a mainframe when the volume information for multiple mainframehosts is obtained. This name is spec

log level A level that controls the output of the following types of messages: messages, which are outputto the SYSLOG while the Business Continuity M

path group ID An ID for differentiating multiple inter-disk controller logical paths established between the samestorage systems. By specifying path g

SCP The status in which I/Os are suspended within the OS.SDSF System display and search facility.secondary DAD Device address domain that contains the

TC copy pair withthe HyperSwapattributeA copy pair defined from Business Continuity Manager as a TC copy pair in a 2DC configurationwith HyperSwap and

IndexSymbols2DC configuration, 36configuration example, 144defining, 144failback procedure, 343failover procedure, 341items to be set for hardware, 14

physical path, 596APID, 90assigningdummy device number, 638BBCM Monitoractions to be taken when BCM Monitor instance hasstarted, 688does not start, 68

that prohibit pair creation, 75configuration that can be achieved through linkage withReplication Manager,, 697confirminglog stream, 719consistency gr

Figure 41 When copy groups contain some consistency group volumes (BC Z, Cnt Ac-S Z, TCA, orCnt Ac-J Z)CAUTION: Copy groups are defined to include all

route list, 132defining copy group attributesprocedure, 642, 647, 648defining multiple command device lines, 90defining Open/MF consistency group, 655

importing definition for monitoring PPRC copy pair, 299importing SMS storage group definition, 306importing SMS storage group informationbefore import

parameter values for supported pair resynchronizationcommand (CESTPAIR), 303parameter values for supported pair suspend command(CESTPAIR), 302paramete

route label, 90route list, 894x4x4 Delta Resync configuration, 272defining, 132route list definition file, 132route list IDspecifying, 636Ssample scri

SMS storage group definition data, 98system logger service, 719using a 3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z)configuration (maintenance and troubleshoo

Figure 42 Copy group containing both a consistency group and copy pairs not included in theconsistency group (BC Z, Cnt Ac-S Z, TCA, or Cnt Ac-J Z)CAU

Using CLI commands to obtain statusBusiness Continuity Manager obtains the types of copy pair statuses by using the commandsdescribed in Table 17 (pag

Table 18 Meanings of the copy pair statuses obtained by Business Continuity Manager (continued)Cnt Ac-J ZTCACnt Ac-S ZBC ZMeaningCopy pairstatusN/AN/A

Preparing the configuration files (4x4x4 Delta Resync configuration)...271Definition procedure (4x4x4 Delta Resync conf

Table 18 Meanings of the copy pair statuses obtained by Business Continuity Manager (continued)Cnt Ac-J ZTCACnt Ac-S ZBC ZMeaningCopy pairstatusN/AN/A

Table 19 Copy pair statuses of volumes obtained by the YKQRYDEV command (Cnt Ac-S Z or TCA)(continued)DescriptionStatus of the copy pair inthe storage

Table 20 Copy pair statuses of volumes obtained by the YKQRYDEV command (Cnt Ac-J Z) (continued)DescriptionStatus of the copy pair inthe storage syste

Table 21 Copy pair statuses of volumes obtained by the YKQRYDEV command (BC Z)DescriptionStatus of the copy pair inthe storage systemCopy pair status

SU-P: SUSPEND-PENDING, which is in transition to suspend status.SI-P: SIMPLEX-PENDING, which is in transition to SIMPLEX status.CON: CONSLOSTINV: INVA

Table 23 P-VOL/S-VOL statuses and copy pair statuses for each copy pair (Cnt Ac-J Z) (continued)P-VOLS-VOLINVNDLHTRHERHLDSI-PSU-PSERSCUSOPDUPPNDSMPTRN

Figure 43 Copy pair status transition with BC Z86 Business Continuity Manager with replication products

Figure 44 Copy pair status transition with Cnt Ac-S Z, TCA, or Cnt Ac-J ZWhen the Delta Resync function is used, transitions might occur for copy pair

In the following situations, Business Continuity Manager issues an error message and the commandterminates abnormally.• One or more copy pairs in the

3 Understanding Business Continuity Manager functionsThis chapter describes Business Continuity Manager functions.The Remote DKC Control functionThis

When Executing Copy Group Operation Commands...310Batch Processing for Multiple Copy Pairs...

• Route label("Label" in the figure) – A label added to select the command device lines to beused when multiple command device lines are def

Figure 46 Overview of using multiple command device lines for CLI commandsUsing different command device lines for multiple replication tasksIf you us

Figure 47 Overview of using different command device lines by specifying route labelsFor example, different command device lines can be used for actua

Figure 48 Overview of an inter-control unit logical path dedicated to Cnt Ac-J Z command devicesFor details on how to create an inter-control unit log

Figure 49 Flow of failovers and failbacksThe Continuous Access Synchronous Consistency preservation functionContinuous Access Synchronous Z provides s

Figure 50 (page 95) shows the execution of the Continuous Access Synchronous consistencypreservation function.Figure 50 Implementation of Cnt-Ac S Con

1. Suspend the copy pair.Use the YKSUSPND command with the S-VOL(PERMIT) parameter specified to suspend thecopy pair.2. Perform operational testing at

• Copy pairs in the specified consistency group are included in the copy group definition.• The copy type of the actual volume matches the copy group

files, even a large-scale copy group configuration can easily be defined or updated. In addition,because processing to define copy groups can be execu

Figure 52 Relationship between SMS storage groups and replication productsThe Specified Time Suspend functionYou can use an ATTIME suspend function to