Status of the xp snapshot pairs – HP StorageWorks XP Remote Web Console Software User Manual
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Delete the XP Snapshot pair itself.
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Delete only the snapshot data.
When an XP Snapshot pair is deleted, not only is the snapshot data stored in the pool deleted,
but also the relationship between the P-VOL and the S-VOL will be released. If only the snapshot
data is deleted, the relationship between the P-VOL and the S-VOL is maintained. When only the
snapshot data is deleted, the snapshot ID of the deleted snapshot data can be assigned to the
newly stored snapshot data of the XP Snapshot pair.
After the command is issued to delete snapshot data, no more snapshot data of that XP Snapshot
pair will be stored in the pool, even if the host tries to write data in the P-VOL. To store snapshot
data for that XP Snapshot pair again, you need to issue the command for storing snapshot data.
The required time for deleting snapshot data or XP Snapshot pairs is several seconds, and sometimes
more than ten minutes. The time will increase if the deleted pair uses a large amount of the pool,
or if multiple pairs are deleted at one time.
When you delete an XP Snapshot pair, the status of the volumes becomes SMPL(PD). Use the XP
Business Copy's Pair Operation window to see the status of the volume.
Using RAID Manager, you can check the volume status by the pairdisplay command, but you
cannot distinguish between an SMPL volume and an SMPL(PD) volume. To distinguish between an
SMPL volume and an SMPL(PD) volume by using RAID Manager, you need to issue the inqraid
command as well. The inqraid command will show you whether or not the volume is being used
by XP Snapshot. As a result of the inqraid command, if the volume is not used by XP Snapshot,
the volume status is SMPL. If the volume is used by XP Snapshot, the status of the volume is SMPL(PD).
NOTE:
When using the inqraid command, specify the -fw option of the XP Snapshot pair IDs
from 3 to 63.
Status of the XP Snapshot Pairs
When you create or split an XP Snapshot pair, the status of the pair changes.
shows the transition of the status of an XP Snapshot pair.
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About XP Snapshot Operations