HP XP7 Business Copy for Mainframe Systems User Guide (TK913-96001)

NOTE: If you are sharing BC Z P-VOLs with Cnt Ac-S Z or Cnt Ac-J Z S-VOLs, for more

information about the requirements and restrictions for using CG pair-split with shared volumes,

see “Requirements, restrictions, and guidelines for using consistency group pair-split with

shared BC Z and Cnt Ac-S Z or Cnt Ac-J Z volumes” (page 21).

4. Register the split time for the BC Z CG to indicate the time when you want to mirror the P-VOL

data in the S-VOL.

For more information about registering split times, see the Hitachi Business Continuity Manager

User Guide.

The split type changes to Quick Split and the BC Z pairs are simultaneously split. The registered

split time remains enabled even after you split the BC Z pairs. You can register a new split

time or reset the split time.

NOTE: Discontinuing use of the remote storage system or turning off the remote storage

system’s power cancels the pair-split operation.

For more information about registering a new split time for the BC Z CG, see “Workflow for

registering new split times for BC Z consistency groups” (page 54).

For more information about resetting the split time, see “Resetting split times” (page 54).

5. If the pair-split operation fails, perform troubleshooting for CG pair-split failures (see

“Troubleshooting consistency group pair-split failures” (page 86)).

6. If you have specified a split time and you are splitting pairs with shared volumes, you must

complete the following:

a. Delete the split time for the BC Z pair that has an S-VOL related to the R-JNL.

b. Restore the pair. Complete one of the following:

- If you are using RWC, see “Workflow for restoring BC Z pairs” (page 58).

- If you are using RAID Manager to run commands, run the following command on the

Cnt Ac-J Z pair:

pairresync -restore

For more information about this command, see the HP XP7 RAID Manager User Guide.

7. Create the pairs.

“Resynchronizing or restoring BC Z pairs” (page 58).