HP StorageWorks XP Remote Web Console Software - Manual (Page 49)

Flex Copy XP user guide 49
A Adjusting volume capacity for copy pair settings
When creating a Flex Copy XP copy pair, the S-VOL’s capacity must be the same as the P-VOL. To set a
desired volume to a copy pair, you might need to adjust the volume’s capacity. This appendix describes
the procedure to adjust the volume capacity.
Copying data from an external array (using an external LU as the P-VOL)
For A, B, and C in the following procedure, see Figure 28 .
To adjust the local array volume’s capacity to create a pair:
1. Map the external LU (A) as an internal LU (B) of the local array. Ensure that the volume’s emulation
type is OPEN-V.
2. Select a local array volume (C) that has the same capacity or a larger capacity as the mapped internal
LU (B). The volume’s (C) emulation type must be OPEN-V.
3. If you select a local array volume (C) that has a larger capacity than the mapped internal LU (B), make
a CV that has the same capacity as the mapped internal LU (B) out of the local array volume (C) using
the Custom Volume Size (CVS) function. For more information, see the HP StorageWorks LUN
Configuration and Security Manager XP user guide for the XP12000/XP10000/SVS200.
NOTE: When making a CV that has the same capacity as the mapped internal LU (B) using the
CVS function, make the CV’s capacity correspond to the Blocks capacity displayed in the Capacity
column on the LDEV Information pane in External Storage XP. For more information, see the
HP StorageWorks External Storage XP user guide.
NOTE: If you want to create a Continuous Access XP pair with an XP1024/XP128 Disk Array
volume, you might not be able to create a CV that has the same capacity as the internal LU (B)
because the CVS function does not allow you to specify the capacity in Blocks. In this case, you
cannot create a Continuous Access XP pair.
4. Create a copy pair.
Figure 28 Copying data from an external array (using an external LU as the P-VOL)
Copying data to an external array (using an external LU as the S-VOL)
For A, B, and C in the following procedure, see Figure 29 .
To adjust the external LU’s capacity to create a pair: