HP StorageWorks XP Remote Web Console Software - Manual (Page 19)

3 Requirements for XP Snapshot operations
This chapter describes requirements for using XP Snapshot, installing XP Snapshot, and calculating
the number of pairs that XP Snapshot can create.
Requirements for using XP Snapshot
Table 4 Requirements for using XP Snapshot
Requirement Item
RAID1, RAID5, or RAID6 RAID level
Install shared memory for the differential table on the base board.
Configure shared memory so you can create the V-VOL management area in
the shared memory.
For the XP12000/SVS200, reserve from 512 MB x 2 to 2 GB x 2 capacity
of the shared memory for the V-VOL management area on the optional board.
1
For more information, see “ Calculating the number of Snapshot XP pairs you
can create ” on page 20.
Shared memory
Install XP Business Copy. Prerequisite software product
Capacity used by XP Snapshot will be subtracted from the license capacity
for XP Business Copy. Therefore, you need to ensure that the license capacity
for XP Business Copy is larger than the capacity to be used by both XP Business
Copy and XP Snapshot.
License capacity
Create the pool. The pool's maximum capacity changes with shared memory's
capacity.
Pool
Create the V-VOL. V-VOL
Command View XP or XP Remote Web Console and XP RAID Manager are
required to operate XP Snapshot.
Operation
1
Because the XP10000/SVS200 does not have the optional board, you must reserve 342 x 2 capacity of the shared memory
on the basic board if you are using the XP10000/SVS200.
For requirements of volumes used for XP Snapshot, see “ Volumes Snapshot XP uses ” on page 11.
Installing and uninstalling XP Snapshot
This section describes procedures for installing and uninstalling XP Snapshot.
Installing XP Snapshot
1. Install additional shared memory for differential tables.
XP Snapshot User Guide 19