HP XP P9500 Storage - Manual (Page 71)

Figure 28 LDEV grouping up to and including XP24000/XP20000 Disk Array
For P9500, RAID Manager can be used to create a group of multiple LDEVs by defining device
groups. This is accomplished by defining device groups in either the primary or secondary
configuration definition file, but not both. By defining a device group, LDEV information can be
changed or defined in one operation. It is not required to modify LDEV information in both
configuration definition files. For example, referencing LDEVs or creating pools can be executed
at the same time because all LDEVs in the device group are subjected to the operation.
LDEV grouping function 71