HP XP Racks - Manual (Page 28)

NOTE: If you are using PPRC, the storage system cannot distinguish pairs that you have split
(“Split/SUSPOP” status) from pairs that are in the process of being Quick Split (“V-Split/SUSPVS”
status).
Do one of the following to check the pair status:
•
From a command prompt, run the following command:
CSUSPEND
To Steady Split, specify MFS00 for the PRIM parameter. In this case, the pair is not in the
process of being Quick Split (“V-Split/SUSPVS” status).
•
Use the RWC.
For more information about the methods you can use to split pairs, see “Pair splitting methods”
(page 49) .
•
If you plan to Quick Restore the BC Z pair, you must first suspend the Cnt Ac-S Z pair.
•
You can perform a CG pair-split on BC Z pairs that share volumes with Cnt Ac-S Z S-VOLs.
For more information about CG pair-split for shared volumes, see “Using consistency group
pair-split with shared volumes” (page 20) .
Related topics
•
For more information about sharing BC Z and Cnt Ac-S Z volumes, see the HP XP7 Continuous
Access Synchronous for Mainframe Systems User Guide.
Sharing volumes with Continuous Access Journal Z
You can share BC Z P-VOLs with Cnt Ac-J Z P-VOLs and S-VOLs.
•
If you plan to Quick Restore the BC Z pair, do not suspend the Cnt Ac-J Z pair.
For more information about Quick Restore, see “Reverse resynchronization” (page 56) .
•
The system reports BC Z status when you query pair status for BC Z and Cnt Ac-J Z shared
volumes using PPRC. Use BCM to query Cnt Ac-J Z’s pair status.
For more information about using BCM, see the Hitachi Business Continuity Manager User
Guide.
•
You can perform a CG pair-split on BC Z pairs that share volumes with Cnt Ac-J Z S-VOLs.
For more information about using CG pair-split on pairs with shared volumes, see “Using
consistency group pair-split with shared volumes” (page 20) .
For more information about sharing BC Z and Cnt Ac-J Z volumes, see the related appendix in the
HP XP7 Continuous Access Journal for Mainframe Systems User Guide.
Sharing volumes with External Storage
You can create BC Z pairs using External Storage external volumes.
For more information about External Storage external volumes, see the HP XP7 External Storage
for Open and Mainframe Systems User Guide.
Sharing volumes with Auto LUN
You can assign the following BC Z volumes to volumes reserved for Auto LUN:
•
L1 P-VOL with up to two S-VOLs.
•
L2 P-VOL with an S-VOL.
28 Sharing Business Copy Z volumes