HP P9000 Snapshot User Guide (AV400-96394, October 2011)

• If the S-VOL Disable attribute is currently set on a volume, the volume cannot be used as a
V-VOL in a subsequent paircreate operation.
• If the S-VOL Disable attribute is set on a P-VOL, the pair cannot be restored.
Use the Remote Web Console Data Retention window to check whether a volume has the Read
Only, Protect, S-VOL Disable, Zero Read Capacity, or Invisible attribute.
Auto LUN
Observe the following when planning Snapshot pairs with Auto LUN migration plans:
• When a P-VOL and the source volume of a migration plan are shared, the Snapshot pair must
be created before the migration plan is executed.
• When a P-VOL and the source volume of a migration plan are shared, the Snapshot status
must be PAIR when you execute the migration plan.
• Deleting and canceling the migration plan are always allowed; they are not affected by
Snapshot pair status.
For information on using Auto LUN, contact HP Technical Support.
Business Copy
Snapshot (SS) P-VOLs can be shared with Business Copy (BC) P-VOLs and S-VOLs. However,
Snapshot’s pair operations are limited according to Business Copy pair’s status, and vice versa.
The following tables show the relationship between pair operations and status.
Table 6 SS Operations when P-VOL shared with BC P-VOL
Business Copy StatusSnapshot Operation
PSUECOPY
(RS-R)
COPY (RS)PSUSPSUS
(SP)
COPY
(SP)
PAIRCOPY
YesNoYesYesYesYesYesYesCreate pair
YesNoYesYesYesYesYesYesSplit pair
YesNoNoYesNoNoNoNoRestore pair
YesYesYesYesYesYesYesYesDelete Snapshot data
YesYesYesYesYesYesYesYesDelete pair
Table 7 SS Operations when P-VOL shared with BC S-VOL
Business Copy StatusSnapshot Operation
PSUECOPY
(RS-R)
COPY (RS)PSUSPSUS (SP)COPY (SP)PAIRCOPY
NoNoNoYesNoNoNoNoCreate pair
NoNoNoYesNoNoNoN/ASplit pair
NoNoNoYes*NoNoNoN/ASplit pairs in a
consistency group
NoNoNoYesNoNoNoN/ARestore pair
YesYesYesYesYesYesYesN/ADelete Snapshot data
YesYesYesYesYesYesYesN/ADelete pair
* The Business Copy pair status must be PSUS from when pairs in a consistency group are split
until when the status of all Snapshot pairs in the consistency group changes to PSUS. If the Business
20 Sharing Snapshot volumes