HP XP P9000 Command View Advanced Edition Software - Manual (Page 150)

(or exceeds the documented limits), an error occurs during task execution, even if the wizard finishes
normally.
Table 9 Number of generations possible with multi-target configuration
Copy type
Storage system
Snapshot Fast Snap Business Copy
64
64
2
First layer: 3
Second layer: 2
1
HP P9500
-- XP7
64
-- XP24000/XP20000
-- XP12000/XP10000/SVS200
Notes:
1. Cascading to second layer is not possible for mainframe pair configurations.
2. Device Manager supports creating and displaying 1024 generations of snapshot groups. Replication
Manager supports displaying 1024 generations of snapshot groups created using Device Manager, but
can only manage 512 generations.
Table 10 Limits on primary volumes and copy generations
XP24000/XP20000
P9500 and XP7 Condition
CVS not installed CVS installed
1 No limit No limit
Number of primary
volumes that can be
added
1 (inactive) 1,024 65,280
Number of copy
generations
Table 11 Requirement for LUSE volumes when creating a copy pair
Other requirements Maximum number of LUs Storage system
If the primary and secondary
volumes are LUSE volumes, they
must have the same number of
constituent LDEVs.
--
P9500 and XP7
1
XP24000/XP20000
XP12000/XP10000/SVS200
Notes:
1. LUSE volumes cannot be used for HP P9500 or XP7 storage systems when the copy type is
Snapshot and the pool type is FS (Fast Snap).
Prerequisites for pair configuration
The following items need to be verified before performing pair configuration operations.
Open
• The storage system P-VOL and S-VOL are registered to Device Manager and the Device Manager
instance is registered as an information source.
Managing pair life cycle 150