Creating Snapshots For Volume Sets - HP StorageWorks P4000 User Manual

When you create an application-managed snapshot of a volume in a volume set, the CMC recognizes
that the volume is part of a volume set. SAN/iQ then prompts you to create a snapshot for each
volume in the volume set. This creates a snapshot set that corresponds to the volume set. To see any
associated snapshots, select a snapshot, click the Details tab, and look at the Snapshot Set field.
NOTE:
After you create snapshots for a volume set, typically you do not want to delete individual snapshots
from the snapshot set. You want to keep or delete all snapshots for the volume set. If you need to roll
back to a snapshot, typically you want to roll back each volume in the volume set to its corresponding
snapshot. The system gives you the option to automatically delete or roll back all associated volumes.

Creating snapshots for volume sets

The following procedure assumes that you select a volume that is part of a volume set for the snapshot.
For information about snapshots for volume sets, see
sets" on page 216.
1. Log in to the management group that contains the volume for which you want to create a new
snapshot.
2. Right-click the volume, and select New Snapshot.
3. Select the Application-Managed Snapshot check box.
This option requires the use of the VSS Provider. For more information, see
application-managed
This option quiesces VSS-aware applications on the server before SAN/iQ creates the snapshot.
The system fills in the Description field and disables the Servers field automatically. You can
assign servers after the snapshot is created.
4. Type a name for the snapshot or accept the default.
5. Click OK.
The New Snapshot – Associated Volumes window opens with a list of all volumes in the volume
set.
6. (Optional) Edit the Snapshot Name and Description for each snapshot.
NOTE:
Be sure to leave the Application-Managed Snapshots check box selected. This option maintains
the association of the volumes and snapshots and quiesces the application before creating the
snapshots. If you deselect the option, the system creates a point-in-time snapshot of each volume
listed.
7. Click Create Snapshots to create a snapshot of each volume.
The snapshots all appearin the CMC. To see any associated snapshots, select a snapshot, click
the Details tab, and look at the Snapshot Set field.
snapshots" on page 216.
"Understanding snapshots for volume
P4000 SAN Solution user guide
"Requirements for
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