HP XP24000/XP20000 Snapshot User Guide (T5213-96033, November 2011)

XP Continuous Access or XP Continuous Access Journal
(page 29) and (page 29) show the relationship between the XP Continuous Access or XP Continuous
Access Journal pair status and XP Snapshot operations when the XP Snapshot P-VOL is shared with
an XP Continuous Access or XP Continuous Access Journal volume.
(page 30) and Page 30 show the relationship between the XP Snapshot pair status and XP
Continuous Access or XP Continuous Access Journal operations for shared volumes.
If a volume uses two mirrors in the 3DC multi-target configuration, the 3DC cascade configuration,
or the delta resync configuration consisting of three XP Continuous Access Journal sites, the volume
cannot be used as an XP Snapshot pair volume.
For detailed information about XP Continuous Access pair status and operations, see the HP
XP24000/XP20000 Continuous Access Software User Guide. For detailed information about XP
Continuous Access Journal pair status and operations, see the HP XP24000/XP20000 XP Continuous
Access Journal Software User Guide.
Table 11 XP Snapshot Operations for Shared XP Snapshot P-VOL/XP Continuous Access or XP
Continuous Access Journal P-VOL
XP Continuous Access / XP Continuous Access Journal Pair StatusXP Snapshot Operations
DeletingSuspendingPSUEPSUSPAIRCOPY
YesYesYesYesYesYesCreating pairs (paircreate)
Yes
*
Yes
*
Yes
*
Yes
*
Yes
*
Yes
*
Storing snapshot data
(pairsplit)
NoNoYesYesNoNoRestoring pairs (pairresync
−restore)
YesYesYesYesYesYesDeleting snapshot data
(pairresync)
YesYesYesYesYesYesDeleting pairs (pairsplit
−S)
Yes: Operation is allowed.
No: Operation is not allowed (command rejected).
* These pairs cannot be used as XP Continuous Access Journal delta resync pair volumes.
Table 12 XP Snapshot Operations for Shared XP Snapshot P-VOL/XP Continuous Access or XP
Continuous Access Journal S-VOL
XP Continuous Access / XP Continuous Access Journal Pair StatusXP Snapshot Operations
DeletingSuspendingSSWS
1
PSUEPSUSPAIRCOPY
Yes
3
Yes
3
Yes
3
Yes
3
Yes
3
Yes
3
Yes
3
Creating pairs (paircreate)
YesYesYesYesYesYesNoStoring snapshot data
(pairsplit)
NoNoNoNoNoNoNoRestoring pairs (pairresync
−restore)
2
YesYesYesYesYesYesYesDeleting snapshot data
(pairresync)
YesYesYesYesYesYesYesDeleting pairs (pairsplit
−S)
Yes: Operation is allowed.
No: Operation is not allowed (command rejected).
Interoperability with Other Products and Functions 29