HP StorageWorks Snapshot XP user guide (T1713-96021, June 2006)

Snapshot XP user guide 33
For more information about Business Copy XP pair status and operations, see the HP StorageWorks
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 relationship between the Continuous Access XP or Continuous Access XP Journal pair
status and Snapshot XP operations is shown in Table 13 and Table 14.
The relationship between the Snapshot XP pair status and Continuous Access XP or Continuous Access XP
Journal operations is shown in Table 15 and Table 16.
Table 13 Snapshot XP operations when Snapshot XP P-VOL and Continuous Access XP/Continuous
Access XP Journal are shared
Snapshot XP operations Continuous Access XP/Continuous Access XP Journal pair status
1
1. OK: Operation allowed.
No: Operation not allowed (command rejected).
COPY PAIR PSUS PSUE Suspending Deleting
Creating pairs (paircreate) OK OK OK OK OK 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
Table 14 Snapshot XP operations when Snapshot XP P-VOL and Continuous Access XP/Continuous
Access XP Journal S-VOL are shared
Snapshot XP operations Continuous Access XP/Continuous Access XP Journal pair status
1
1. OK: Operation allowed.
No: Operation not allowed (command rejected).
COPY PAIR PSUS PSUE SSWS
2
2. SSWS is a status of Continuous Access XP Journal pairs. Continuous Access XP pairs do not change to SSWS status.
Suspending Deleting
Creating pairs (paircreate) OK OK OK OK OK OK OK
Storing snapshot data
(pairsplit)
No OK OK OK OK OK OK
Restoring pairs (pairresync
-restore)
3
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.
No No No No No No No
Deleting snapshot data
(pairresync)
OK OK OK OK OK OK OK
Deleting pairs (pairsplit -S)OKOKOKOKOKOK OK
Table 15 Continuous Access XP/Continuous Access XP Journal operations when Snapshot XP P-VOL and
Continuous Access XP/Continuous Access XP Journal P-VOL are shared
Continuous Access XP/
Continuous Access XP
Journal operations
Snapshot XP pair status
1
COPY PAIR PSUS SMPL(PD) COPY(RS) COPY(RS-R) PSUE
Creating pairs (paircreate) OK OK OK OK OK No OK
Splitting pairs (pairsplit) OK OK OK OK OK – OK