Hp LeftHand P4000 Virtual SAN Appliance Software User Manual download pdf (Page 26)

and review the Snapshot Set field. For more information about volume sets and snapshot sets,

see the HP P4000 SAN Solution User Guide.

Using scripting for failover

Application-based scripting provides the capability for creating, mounting, and deleting snapshots

using scripts. Remote Copy can be scripted as well. Remote snapshots and scheduled remote

snapshots can be created and managed using scripts. For information about scripting, see the

CLIQ—The SAN/iQ Command-Line Interface User Manual and the sample scripts available at

http://www.hp.com/go/P4000downloads.

Using the Volume Failover/Failback Wizard

Changing the roles of primary and remote volumes may be necessary during failover and failback.

Move your primary volume either as part of a failover/failback scenario or as part of a planned

move. The Volume Failover/Failback Wizard takes you through the necessary steps to move a

primary volume to an existing remote volume, and to make the existing remote volume to an acting

primary volume.

Later, when failing back or restoring operations in a planned move, resynchronize data between

the acting primary and the recovered, or newly configured, production site primary volume.

NOTE: When failing over a primary volume, the volume must have a remote copy relationship

for the wizard to be available.

Converting a primary volume to a remote volume

The system allows you to convert a primary volume into a remote volume. First, the system takes a

snapshot of the primary volume to preserve the existing data that is on the volume. Next, the

primary volume is converted to a remote volume.

1. In the navigation view, select the volume to convert.

2. Right-click the volume, and then select Failover/Failback Volume.

3. Click Next.

4. Select the reason you are failing over the volume.

Use the first choice if your primary volume is available and you are planning a preemptive

move of the primary volume. For the steps to use the second choice, see “Using failover to

remote volume” (page 27).

5. Select the first choice, “To move the primary volume” and click Next.

6. Disconnect the iSCSI sessions, if any are displayed, and then click Next.

7. Enter a name and a description for the snapshot to be taken of the current primary volume.

This snapshot preserves the existing data on the volume.

8. Click Next.

9. The final step is to make the remote volume into an acting primary volume.

This acting primary volume connects to application servers in order to maintain business

continuance or accomplish disaster recovery.

NOTE: You cannot make a remote volume into a primary volume while a remote snapshot

is in progress. Either wait until the remote snapshot copy completes before making the remote

volume into a primary volume, or cancel the in-progress remote copy.

10. Click Finish.

The snapshot is created and the volume becomes a remote volume.

The final window of the wizard displays a summary of the actions and a reminder to reconnect

your iSCSI sessions.

26 Using Remote Copy

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