10.5 HP StoreVirtual Storage Remote Copy User Guide (AX696-96247, March 2013)

Snapshot Set field. For more information about volume sets and snapshot sets, see the HP StoreVirtual
Storage User Guide or online help.
Prerequisite
Stop applications from accessing the volume.
CAUTION: Any remote snapshot that has not completed copying is canceled.
1. Log in to the management group that contains the primary volume that you want to roll back.
2. Select the snapshot to roll back to.
3. Review the snapshot Details tab to ensure you have selected the correct snapshot.
4. Click Snapshot Tasks on Details tab, and then select Roll Back Volume.
NOTE: During the rollback, any connections to the volume are detected and a warning is
displayed that reminds you to stop the applications from accessing the volumes, and to either
log off iSCSI sessions, or unassign the volumes from the Fibre Channel server before
proceeding.
5. Stop the applications from acccessing the volumes, and either log off any connected iSCSI
sessions or unassign volumes from the Fibre Channel server.
6. Click OK.
The primary snapshot version of the primary volume is restored as a volume with the same
name.
7. Reconfigure application servers to access the new volume.
8. Restablish the iSCSI sessions or reassign the volumes to the Fibre Channel server.
Rolling back a remote volume
A remote volume cannot be rolled back until you convert the remote volume into a primary volume
and then perform the steps in “Rolling back a primary volume” (page 30).
If a volume is part of a volume set, typically you want to roll back each volume using its
corresponding snapshot. The system gives you the option to automatically roll back all associated
volumes. To see any associated snapshots, select a snapshot, click the Details tab, and look at the
Snapshot Set field. For more information about volume sets and snapshot sets, see the HP StoreVirtual
Storage User Guide or online help.
Using remote snapshots for data migration and data mining
Use remote snapshots to create split mirrors for data mining and data migration. A split mirror is
a one-time remote snapshot created from the volume containing the data you want to use or move.
Split mirrors are usually created for one-time use and then discarded.
Creating a split mirror
To create a split mirror:
• Create a remote snapshot.
• Create a server for client access.
• Configure clients to access the remote snapshot.
TIP: Consider using the SmartClone feature to create a split mirror. The SmartClone volume is
an exact copy of the volume or snapshot yet consumes no extra space on the SAN.
Using remote snapshots for data migration and data mining 31