Hp Storage Mirroring Software User Manual Page 278
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Workload protection Page 277 of 677
the source. When the target receives the compressed data, it decompresses
it and then writes it to disk.
l Limit bandwidth—Bandwidth limitations are available to restrict the amount
of network bandwidth used for Storage Mirroring Recover data transmissions.
When a bandwidth limit is specified, Storage Mirroring Recover never
exceeds that allotted amount. The bandwidth not in use by Storage Mirroring
Recover is available for all other network traffic. If desired, enter a value, in
kilobits per second, to limit data transmission. The value you enter is the
maximum amount of data that will be transmitted per second.
l Fail over automatically if the target server cannot contact the source
server—If this option is selected, failover will automatically occur when the
target can no longer contact the source. If this option is disabled, you will
have to monitor communications between the target and source and
manually initiate failover when the target can no longer contact the source. In
either case, failover is not available until after the initial mirror has been
completed.
l Do not monitor for failover—Select this option if you do not want the target
to actively monitor the source for a failure. If you do not monitor for failover,
you will have to monitor the source manually on your own and initiate failover
manually if there is a source failure.
l Monitor for failover—Select this option if you want the target to actively
monitor the source for a failure. Specify the Monitoring interval, which is the
number of seconds between monitor requests sent from the target to the
source to determine if the source is online, and the Number of missed
intervals that trigger failover, which is the number of monitor replies sent
from the source to the target that can be missed before assuming the source
has failed.
Note: To achieve shorter delays before failover, use lower interval and
missed interval values. This may be necessary for servers, such as a
web server or order processing database, which must remain
available and responsive at all times. Lower values should be used
where redundant interfaces and high-speed, reliable network links are
available to prevent the false detection of failure. If the hardware does
not support reliable communications, lower values can lead to
premature failover. To achieve longer delays before failover, choose
higher values. This may be necessary for servers on slower networks
or on a server that is not transaction critical. For example, failover
would not be necessary in the case of a server restart.
- HP StorageWorks 1
- Table of Contents 3
- Core operations 17
- Mirroring 18
- Replication 19
- Restoration 21
- Full-server workloads 23
- Application workloads 24
- Virtual workloads 25
- Cluster workloads 26
- Supported configurations 28
- One-to-one, active/standby 29
- One-to-one, active/active 30
- Many-to-one 31
- One-to-many 32
- Foundation Edition 38
- Standard Edition 39
- Advanced Edition 40
- Premium Edition 41
- Virtual Guest 5-Pack Edition 42
- Virtual Host Standard Edition 43
- Virtual Host Advanced Edition 44
- Virtual Host Premium Edition 45
- SQL protection requirements 53
- Virtual workload requirements 57
- ESX to ESXrequirements 64
- Cluster workload requirements 66
- Infrastructure 75
- C:\>M: 80
- Storage Mirroring Console 85
- Starting the console 86
- Getting started 87
- Inserting servers manually 88
- Managing servers 91
- Viewing server details 93
- Viewing server events 95
- Providing server credentials 96
- Console options 98
- Other consoles 101
- Replication Console 102
- Logging on and off 103
- Workspaces 115
- Failover Control Center 119
- Full-Server Failover Manager 123
- Application Manager 129
- Adding or managing servers 130
- Managing activation codes 133
- Managing ESX servers 135
- Setting up an e-mail server 136
- Workload protection 137
- Data protection 138
- Creating a replication set 142
- Simulating a connection 152
- Data workload failover 154
- Updating shares on the target 162
- Server settings 165
- Identifying a server 166
- Licensing a server 168
- Queuing data 174
- E-mailing event messages 189
- Full-server protection 192
- Finding a compatible target 193
- Routing data transmissions 204
- Mirroring data 205
- Compressing data 206
- Full-server ports 208
- Microsoft Windows ports 209
- Hardware ports 210
- Application protection 211
- Protecting an application 212
- Application advanced settings 244
- Application workload ports 253
- Exchange Failover Utility 256
- Virtual server protection 259
- Configuring ports 282
- 3. Click Save 293
- Virtual workload ports 300
- Cluster protection 303
- Protecting a standard cluster 304
- Protecting a GeoCluster 323
- Bringing the resource online 328
- Taking the resource offline 329
- Special configurations 338
- Domain controllers 339
- WINS registration 342
- WINS replication 343
- Windows DNSCMD command 345
- Non-Microsoft DNS 351
- Macintosh shares 353
- NFS Shares 355
- Workload monitoring 356
- Data workloads 357
- Monitoring a data workload 358
- Connection statistics 359
- Connection and server display 364
- Monitoring virtual workloads 375
- Viewing connection details 384
- Connection controls 391
- Monitoring a cluster workload 392
- Log files 397
- Viewing the log file 398
- Filtering the log file 404
- Monitoring event messages 414
- Event messages 415
- Statistics 445
- Viewing the statistics file 448
- Performance Monitor 457
- SNMP traps 466
- SNMP statistics 469
- Error codes 473
- Failover 479
- Full-server workload failover 484
- DNSfailover 491
- Virtual workload failover 495
- Failover Page 496 of 677 497
- Failback and restore 499
- Restoring then failing back 501
- Failing back then restoring 507
- Full-server workload diagram 512
- 1B. Reusing your source 514
- File Server 521
- Computer Browser 521
- Connections 526
- Data queues 527
- Reconnecting automatically 535
- Disconnecting a connection 538
- Mirroring automatically 542
- Mirroring Page 545 of 677 546
- Removing orphan files 547
- Replication capabilities 551
- Replication sets 555
- Replication Page 559 of 677 560
- Modifying a replication set 563
- Deleting a replication set 567
- Starting replication 568
- Verification 570
- Verifying manually 571
- Verifying on a schedule 573
- Data transmission 585
- Scheduling data transmission 587
- Snapshots 599
- Snapshots for data workloads 601
- Snapshot states 602
- Automatic snapshots 606
- Scheduling snapshots 607
- Snapshots Page 607 of 677 608
- Taking snapshots manually 609
- Recommended optimizations 612
- Planning 613
- Installation 615
- General optimizations 617
- General manageability 619
- Anti-virus protection 621
- Hardware configurations 621
- Exchange 623
- Security 626
- Security credentials 627
- Security Page 627 of 677 628
- Mirroring service 630
- Evaluations 632
- Evaluating data protection 633
- Establishing a connection 634
- Testing your target data 641
- Evaluations Page 641 of 677 642
- Monitoring failover 645
- Evaluations Page 645 of 677 646
- Simulating a failure 647
- Initiating failback 649
- Restoring your data 651
- Starting failover 659
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