HP XP Racks - Manual (Page 38)

Used as Cnt Ac-S S-VOL? Used as Cnt Ac-S P-VOL? Volume type
Business Copy (BC)
Yes Yes P-VOL in PSUS (Delete pair to RCU) status
No No P-VOL in COPY(RS-R)/RCPY status
No No BC P-VOL is also used as a Cnt Ac-J P-VOL or S-VOL
Yes Yes P-VOL (none of the above)
No Yes S-VOL in PSUS (Delete pair to RCU) status
No No S-VOL (none of the above)
No No Reserved volume
Continuous Access Journal (Cnt Ac-J)
No No P-VOL in COPY status
No
3
Yes
2
P-VOL in PAIR status
No
4
Yes
2
P-VOL in PSUS (Delete pair to RCU) status
No
4
Yes
2
P-VOL in PSUE (pair suspended-error) status
No No S-VOL in COPY status
No No S-VOL in PAIR status
No Yes S-VOL in PSUS (Delete pair to RCU) status
No Yes S-VOL in SSWS status
No Yes S-VOL in PSUE (pair suspended-error) status
External Storage
Yes Yes Mapped external volume
Cache Partition
Yes Yes Volume belonging to the CPart CLPR
Auto LUN
1
Yes. (If the source volume is
an S-VOL, volume migration
will stop.)
5
Yes. (If the source volume is
a P-VOL, volume migration
will stop.) Source volume (when volume migration is in progress)
Yes Yes Source volume (after volume migration is finished)
No No Target volume
No No Reserved volume
1. For more information about using Auto LUN, contact the HP Technical Support.
2. The volume cannot be used if the corresponding Cnt Ac-J pair belongs to a journal that is configured for 2DC
configurations.
3. The volume can be used only when you resynchronize a Cnt Ac-S pair or perform a RAID Manager horctakeover
operation. In this case, even though the corresponding Cnt Ac-J pair belongs to a journal that is configured for 2DC
configurations, the volume can be used.
4. The volume can be used only when you resynchronize a Cnt Ac-S pair or perform a RAID Manager horctakeover
operation, except when the corresponding Cnt Ac-J pair belongs to a journal that is configured for 2DC configurations.
5. If the Cnt Ac-S S-VOL is a THP V-VOL, the Cnt Ac-S pair cannot be created. Create the Cnt Ac-S pair after completing
volume migration or stopping the Auto LUN operation.
The following topics include additional information about shared volumes.
38 Sharing Continuous Access Synchronous volumes