HP XP External Storage Software - Manual (Page 36)

XP Snapshot Operations
Figure 18 (page 36) shows the use of an external volume for the XP Snapshot operation. The
mapped external volume is set as a pool-VOL of the XP Snapshot pair. For details on XP Snapshot,
see the HP StorageWorks XP24000/XP20000 Snapshot User Guide.
The procedure for the operation is as follows:
1. Use XP External Storage to map a volume in the external storage system as an internal volume
of the local storage system.
CAUTION: Set the emulation type of the volume to OPEN-V when you map the volume,
because the volume with the OPEN-V emulation type can only be set as a pool-VOL of XP
Snapshot.
For details on the mapping operation, see “Mapping an External Volume Automatically”
(page 67) .
2. The status of the mapped volume automatically becomes Normal. However, the volume
formatting processing is not executed automatically. If you need to format the mapped volume,
format the volume using the VLL function. For the volume formatting operation procedure, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
3. Create a pool and add the mapped external volume to that pool as a pool-VOL.
4. Set the P-VOL and S-VOL of the XP Snapshot pair with specifying the pool you have created
at step 3.
Figure 18 Example of the XP Snapshot Operations
36 About XP External Storage Operations