Storage mirroring console to initiate failover – HP Storage Mirroring Software User Manual

Page 496

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Failover

Page 495 of 677

Failing over virtual workloads in the Storage Mirroring
Console

1. On the Monitor Connections page, select the connection that you want to failover.

2. In the lower pane, click Failover in the toolbar.

3. Select the type of failover to perform.

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Live failover—Select this option to initiate a full, live failover. This option will
shutdown the source virtual machine (if available), stop the protection job,
and start the replica virtual machine on the target with full network
connectivity. You will only be able to undo a live failover if you are protecting
a Hyper-V virtual machine at the host-level.

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Test failover—Select this option to perform a test failover without network
connectivity. This option will leave the source virtual machine online,
suspend the protection job, and start the replica virtual machine on the target
without network connectivity. In addition to being able to undo a test failover if
you are protecting a Hyper-V virtual machine at the host-level, you can also
undo a test failover if you are protecting a Hyper-V or ESX virtual machine at
the guest-level.

4. Click Failover to begin failover.

Note: Once failover has occurred, if you add CPUs to the replica of the source on

the target, you may have to reboot the replica before the operating system
will recognize the additional CPUs.

5. Depending on your workload type and the type of failover you performed, you can

undo it by clicking Undo Failover in the toolbar.

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Live failover— You can only undo a live failover if you are protecting a
Hyper-V virtual machine at the host-level. In this case, the replica virtual
machine on the target will be shutdown, the virtual machine on the source
will be restarted, and the protection job will be restarted performing a file
differences remirror. When you undo a live failover, all changes made on the
replica virtual machine on the target will be lost. If you do not want to lose the
changes made on the replica virtual machine on the target,

perform a restore

and failback

.

l

Test failover—In addition to being able to undo a test failover if you are
protecting a Hyper-V virtual machine at the host-level, you can also undo a
test failover if you are protecting a Hyper-V or ESX virtual machine at the
guest-level. In this case, the replica virtual machine on the target will be

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