HP XP7 Storage - Manual (Page 73)

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.
Figure 29 LDEV grouping from P9500 (device group and copy group)
However, for executing replication function commands in RAID Manager, two device groups must
be combined and defined as a copy group.
When defining a device group or copy group by a command, the command can be issued from
multiple RAID Manager instances because the group information is defined in the storage system.
LDEV grouping function 73