HP XP7 Business Copy User Guide (TK913-96002)

◦ (The status of the L1 pair if you are splitting, or creating and immediately splitting, an L2
pair) “PSUS”
◦ (The status of all pairs in a CG that you want to Quick Split) “PAIR”
• If you want to split an L1 pair that has L2 pairs, make sure the pair status is supported (see
“L1, L2 pair status and supported pair user tasks” (page 65)).
• If you are concerned with host server I/O performance, check to make sure the I/O load is
light.
For more information about checking I/O performance-related information, see the HP XP7
Remote Web Console User Guide.
Related topics
• “Quick Split and Steady Split performance planning” (page 16)
• “L1, L2 pair status and supported pair user tasks” (page 65)
• “Guidelines for maximizing host server I/O performance” (page 17).
Workflow for ensuring data consistency
Use the following workflow to ensure data consistency before splitting the pair:
1. Ensure the pair is not paired (“PAIR” status).
2. Complete the update copy with a host I/O.
3. Stop write operations from the host server to the P-VOL.
Workflow for quickly splitting existing pairs
Use the following workflow to quickly split an existing pair:
1. Stop host access to the P-VOL.
2. Split the pair.
For more information about splitting BC pairs, see “Splitting BC pairs” (page 48).
Splitting BC pairs 47