HP XP Racks - Manual (Page 38)

BC Z pair creation
When you create a pair, the XP7 storage system performs an initial copy to copy data in the P-VOL
to the S-VOL. You can create the BC Z pair and immediately split the pair so that you can access
the S-VOL. You can also create a cascaded pairs.
Creating a BC Z pair allocates the MP blade allocated to the P-VOL's LDEV to the S-VOL's LDEV.
Related topics
•
“Prerequisites for creating BC Z pairs” (page 38) .
•
“Creating BC Z pairs” (page 39) .
•
“Initial copy workflow” (page 9) .
•
“Update copy workflow” (page 9) .
•
“Create Pairs wizard” (page 127) .
•
“MP blades and deleting pairs” (page 63) .
Workflow for creating Business Copy Z pairs
Use the following workflow to create an BC Z pair:
1. Select the volume that you want to duplicate. This becomes the primary volume (P-VOL).
NOTE: In the Remote Web Console (RWC), the source volume is called “P-VOL” and the
destination volume is called “S-VOL”.
You cannot use BC Z volumes as destination volumes.
2. Identify the volume that will contain the copy. This becomes the secondary volume (S-VOL).
If you are setting up pair configurations for BC Z, specify the pair configuration settings
For more information about setting up pair configurations, see “Workflow for setting up pair
configurations for BC Z” (page 43) .
3. Create the pair by associating the P-VOL and the S-VOLs.
The XP7 storage system starts the initial copy.
For more information:
•
About how to create BC Z pairs, see “Creating BC Z pairs” (page 39) .
4. (Optional) Suppress copy processing.
For more information about suppressing copy processing, see “Suppressing update copy
operations during pair creation” (page 43) .
Prerequisites for creating BC Z pairs
The following are prerequisites for creating BC Z pairs:
•
The volumes are set up for pairing.
For more information setting up volumes for pairing, see “Workflow for setting up Business
Copy Z” (page 31) .
•
The P-VOL and S-VOL are unpaired.
38 Managing Business Copy Z pairs