Prerequisites for splitting SI pairs
The following are the prerequisites for splitting SI pairs:
The pair status must be one of the following:
If you are splitting an existing pair, the pair status must be "PAIR".
If you are creating and then immediately splitting an L1 pair, the volumes are unpaired (SMPL).
If you want to split an L1 pair that has L2 pairs, see L1, L2 pair status and supported pair user tasks.
If you are splitting, or creating and immediately splitting, an L2 pair, the status of the L1 pair must be "PSUS".
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 Hitachi Command Suite User Guide.
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