HP XP P9000 Command View Advanced Edition Software - Manual (Page 244)

The takeover procedure is as follows:
1. If the copy pair state is Unknown, a failure may have occurred. Check for failures outside of
Replication Manager.
2. Using the Change Pair Status Wizard, create a takeover Change Copy Pair Status task for the
target copy group or copy pair.
3. Check the Task List window to confirm that the status of the task is Success.
4. View the target copy pair in the Pair Configurations view and check the task execution results
(whether the primary and secondary volumes have switched, and whether the secondary volume
has changed to Split (SSWS)).
5. If necessary, set up My Copy Group settings and alert settings, and recreate the Change Copy
Pair Status task.
Swap operation
This operation is used to switch work from the primary site to the secondary site. When you execute
this operation, the primary volume and secondary volume for the copy pair are switched.
The swap procedure is as follows:
1. Using the Change Pair Status Wizard, create a swap Change Copy Pair Status task for the target
copy group or copy pair.
2. Check the Task List window to confirm that the status of the task is Success.
3. Check the copy pair status in the Pair Configurations view.
4. If necessary, set up My Copy Group settings and alert settings, and recreate the Change Copy
Pair Status task.
Force-split operation
The force-split operation can be used when the copy type is Cnt Ac-S and the fence level is data or
status. It is used when a failure at the secondary site prevents Cnt Ac-S-type copy pairs (with a fence
level of data or status) from being written to the primary site. When a force-split operation is executed,
it first attempts to put the primary volume into a special SUSPEND status. If it succeeds at putting the
primary volume in a special SUSPEND status, the status of the primary volume will change to Split
(PSUS or HOLD) or Error (PSUE or HLDE). If it fails to put the primary volume in a special SUSPEND
status, forced splitting of the primary and secondary volume is performed, and the primary volume is
changed to a writable Simplex (SMPL) status.
CAUTION:
Note the following:
• If a storage system failure occurs on the secondary site, the copy pair state cannot be obtained
and it is shown as Unknown. In a remote copy circuit failure, the copy pair state is not limited to
a specific status.
• The aggregate copy pair status after a force-split operation is either Suspend or Error.
Managing pair life cycle 244