Setting up pair configurations for ShadowImage
Procedure
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Create pairs with different numbers of S-VOLs.
Open the Select Pair Configuration window of the Create Pairs wizard. For Number of Secondary Volumes, select the number according to the pair with the highest number of S-VOLs, even when some pairs do not have many S-VOLs. -
Remove the unwanted volumes.
Example 1
If you want to create a pair using one P-VOL and one S-VOL, set the Number of Secondary Volumes to 1.
If you want to use one P-VOL and three S-VOLs (the maximum), set the Number of Secondary Volumes to 3.
Example 2
If you want to add a new S-VOL to an existing pair, select 2 for Number of Secondary Volumes.
Example 3
If you want to create one pair with two S-VOLs, and another pair with one S-VOL at the same time, set the Number of Secondary Volumes at 2. In this case, the system operates as if you are creating two pairs, each having two S-VOLs.