HP StorageWorks Snapshot XP user guide (T1713-96023, October 2006)

NOTE:
Since a Snapshot XP S-VOL uses data in the P-VOL, Business Copy XP's quick backwar d pairresync
operation (Quick Restore) is not allowed.
For more information about Business Copy XP pair status and operations, see the HP Stora geWorks
Business Copy XP user guide for the XP12000/XP10000/SVS200.
Combining Snapshot XP with Continuous Access XP or Continuous Access XP
Journal
When the Snapshot XP P-VOL and the Continuous Access XP or Continuous Access XP Journal pair
volume are shared, the relatio nship between the Continuous Access XP or Continuous Access XP Journal
pair status and Snapshot XP operations is shown in Table 13 and Table 14.
Table 13 Snapshot XP o pe rations whe n Snapshot X P P-VOL and Continuous Ac cess
XP/Continuous Access XP Journal are shared
Continuous A ccess XP/Continuous Access XP Journal p air
status
1
Snapshot XP operations
COPY
PAIR
PSUS PSUE
Suspending Deleting
Creatingpairs(paircreate) OKOKOKOKOK OK
Storing snapshot data (pairsplit)
OK OK OK OK OK OK
Restoring pairs (pairresync -restore)
No No
OK OK
No No
Deleting snapshot data (pairresync)
OK OK OK OK OK OK
Deleting pairs (pairsplit -S)
OK OK OK OK OK OK
1
OK: Operation allowed.
No: Operation not allowed (co mmand rejected).
Table 14 Snapshot XP o pe rations whe n Snapshot X P P-VOL and Continuous Ac cess
XP/Continuous Access XP Journal S-VO L are shared
Continuous Access XP/Continuous Access XP Journal pair status
1
Snapshot XP operations
COPY
PAIR
PSUS PSUE SSWS
2
Suspending Deleting
Creatingpairs(paircreate) OKOKOKOKOKOK OK
Storing snapshot data
(pairsplit)
No
OK OK OK OK OK OK
Restoring pairs (pairresync
-restore)
3
No No No No No No No
Deleting snapshot data
(pairresync)
OK OK OK OK OK OK OK
Deleting pairs (pairsplit -S)
OK OK OK OK OK OK OK
1
OK: Operation allowed.
No: Operation not allowed (co mmand rejected).
2
SSWS is a status of Continuous Access XP Journal pairs. Continuous Access XP pairs do not change to SSWS status.
3
When restoring the Snapshot XP pair whose P-VOL is used as a Continuous Access XP or Continuous Access XP Journal
S-VOL, you must switch operations from the local site to the remote site by executing the horctakeover command.
The relationship b etween the Snapshot XP pair status and Continuous Access XP or Continuous Access XP
JournaloperationsisshowninTable 15 and Table 16.
38
Using Snapshot XP