HP XP RAID Manager Software - Manual (Page 108)

C Pair operations (secondary window)
This appendix provides instructions on using the previous version of the RWC GUI, which opens
in a secondary window, and RAID Manager.
You can do all pair operations in the new RWC GUI. For more information about the pair
operations, see
“Pair operations” (page 35) .
Pair operations workflow
Use the following workflow to perform pair operations:
•
Check the pair status. The pairs must have a specific status before you can do a pair operation.
Check the pair status to confirm an operation completed successfully.
•
Create the pair.
The V-VOL is transformed as a virtual copy of the P-VOL.
•
Split the pair.
A point-in-time snapshot of the P-VOL in the V-VOL is created. This allows another software
application to use the V-VOL.
•
Resume the pair.
The SS data is discarded. The V-VOL is returned to a virtual copy of the P-VOL.
•
Delete the pair.
The pair relationship between the pair volumes ends.
•
Restore the pair.
The pair is restored to the point-in-time data of the last snapshot.
Checking pair status
Pair operations require a specific status. Check the pair status before performing an operation.
•
For more information about checking pair status, see “Monitoring the system in the secondary
window” (page 112) .
•
For the operations allowed for specific statuses, see “Pair status definitions” (page 113) .
Creating a pair
Creating a pair changes the V-VOL to a virtual copy of the P-VOL. Updates to the P-VOL are reflected
in the V-VOL until you split the pair.
Prerequisite Information
•
The data pool and V-VOL for the new pair must exist. For more information about installing
and configuring data pools and V-VOLs, see
“Business Copy/Snapshot installation and
configuration” (page 23) .
•
Review the pair volume requirements. For more information, see “Business Copy/Snapshot
planning and design” (page 11) .
•
The pair volumes must be in “SMPL” status.
•
Use the same data pool for all pairs sharing a single P-VOL.
For example: Three pairs with the same P-VOL must use the same data pool.
•
Run the paircreate command when the data pool capacity is within the threshold.
•
Running the command immediately after deleting previous SS data takes a longer time to
complete.
108 Pair operations (secondary window)