Manual

6. For Split Volume Pair, complete the following:
1. Ensure the pairs that you want to split are shown.
2. Select the volume that is not assigned to a pair (SIMPLEX status) that you want to be the
S-VOL in an L1 pair-create-and-split operation.
7. From Copy Pace, select the pace at which the pairs are to be split, Slower, Medium, or Faster.
Copy Pace affects the host I/O performance: a slower pace minimizes impact, a faster pace
has the greatest impact. The pace you select is used for all pairs in the operation.
8. From Select Split Type, select one of the following:
• Steady Split: Any remaining differential data between S-VOL and T-VOL is copied to the
T-VOL before the split. Read and write access to the T-VOL is available only when the
operation completes.
• Quick Split: Read and write access to the T-VOL is available immediately. Any remaining
differential data between S-VOL and T-VOL is copied to the T-VOL in the background.
9. If you are splitting an existing pair or pairs, click OK and go to the last two steps in this
procedure.
If you are creating and splitting a pair, continue to the next step.
10. Show the volumes available for T-VOLs by selecting the following filters from the Select T-VOL
box:
• Select an LDKC (if selectable).
• Select the appropriate CU image.
• Select a Volume Type to show internal or external volumes. You can select both if desired.
• Select an Attribute to show volumes previously reserved as T-VOLs, or volumes that are
not reserved. You can select both if desired.
11. Select the volume to be the T-VOL from the volume list in the Select T-VOL box.
12. Click Set. This places the volume as the T-VOL in the pair list.
13. If creating and splitting pairs, pair additional T-VOLs to a S-VOL as desired.
14. To replace an T-VOL in the volume/pair list, select the pair, select the desired T-VOL in the
Select T-VOL box and then click Change.
15. To complete the operation, click OK.
130 Pair operations (secondary window)