HP XP7 Storage - Manual (Page 73)

Related topics
•
For more information about creating FS pairs, see “Creating Fast Snap pairs” (page 64) .
•
For more information about splitting pairs to store snapshot data from the consistency group
for those pairs that are defined in the consistency group, see
“Snapshot data storage methods”
(page 73) .
•
For more information about how to store snapshot data for a group using the RAID Manager,
see
“Workflow for creating groups and storing snapshot data using the RAID Manager”
(page 12) .
Snapshot data storage methods
Use one of the following methods to store snapshot data:
•
Split the FS pair.
For more information about storing snapshot data by splitting pairs, see:
◦ “Splitting Fast Snap pairs to store snapshot data” (page 73) .
◦ “Splitting Fast Snap pairs to store snapshot data using the RAID Manager” (page 75) .
•
Split the FS pair within the consistency group using consistency group pair-split. Complete one
of the following:
◦ If you are not sharing FS P-VOLs with Cnt Ac-J or Cnt Ac-S S-VOLs within a storage system,
see
“Workflow for splitting Fast Snap pairs in consistency groups” (page 75) .
◦ If you are sharing FS P-VOLs with Cnt Ac-J or Cnt Ac-S S-VOLs within a storage system,
see
“Workflow for consistency group pair-split with shared volumes” (page 76) .
Splitting Fast Snap pairs to store snapshot data
This topic explains how to split pairs. Splitting pairs stores snapshot data. You can store a maximum
of 1,024 snapshots from a P-VOL. If you reach the maximum, delete the unneeded or unused
snapshots.
If you have stored multiple snapshot data, you can share the data in a pool.
To store snapshots, the pair must not have a status of “PAIR”, even when the hosts update the
P-VOLs. If the snapshot data acquisition process stops, resume the process by splitting the pair.
Prerequisites:
•
You have the Storage Administrator (Local Copy) role.
•
The FS pair status is “PAIR”.
Snapshot data storage methods 73