HP XP7 User Manual page 43

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.
For more information about creating pairs, see
2. Remove the unwanted volumes.
For an example, see For an example, see
Example 1
When you create a pair using one P-VOL and one S-VOL, the Number of Secondary Volumes is
set to 1.
When using one P-VOL and three S-VOLs (the maximum), the Number of Secondary Volumes is
set to 3.
Example 2
If you want to add a new S-VOL to an existing pair, as illustrated in the following image, 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 on the assumption
that you are creating two pairs, each having two S-VOLs.
"Creating BC Z pairs" (page
"Example 3".
38).
BC Z pair creation 43