HP XP Command View Advanced Edition Software - Manual (Page 34)

Figure 5 Backing up multiple generations when a copy group is locked
The order in which secondary volumes are used for backups does not change regardless of which
generation you might decide to restore at some point in time.
The number of generations that Application Agent can manage, and the backup and restore operations
available are all dependent on the volume replication functions of the particular storage system.
Overview of Application Agent 34