Hewlett Packard Enterprise HPE XP7, User Manual, Page: 115 / 311

To view the capacity in blocks, click Options > Capacity Unit > block in the Logical Devices window.
• If you select a P-VOL that you are already using as the P-VOL for another Fast Snap pair, you must
specify the same pool for both pairs. For example, if you specify three S-VOLs for one P-VOL, specify
the same pool for the three Fast Snap pairs.
• The value of the T10 PI attribute must be the same for the P-VOL and S-VOL.
• A Fast Snap pair cannot be created when the used pool capacity exceeds the warning threshold. In
this case, increase the pool capacity first, and then create the pair.
Prerequisites
• You must have the Storage Administrator (Local Copy) role.
• If you are sharing Business Copy volumes with Fast Snap volumes, the BC pair must exist.
• If you want to use a Business Copy S-VOL as a Fast Snap P-VOL when an available MU number
does not exist, you must have completed the following:
1. Deleted the Fast Snap pairs of MU numbers 0 to 2.
2. Created the Business Copy pair.
3. Re-created the Fast Snap pair with an MU number of 3 or greater assigned.
• In RAID Manager, use the
raidcom add snapshot
command.
You can create a Fast Snap pair and define the pair in a consistency group. You can create 1,024 Fast
Snap pairs at the same time. To create more than 1,024 pairs, repeat this task.
Procedure
1. In the Explorer pane, click Storage Systems .
2. Expand the storage system tree, expand Replication , and then click Local Replication .
3. In the Local Replication window, select a P-VOL on the FS Root Volumes tab or a snapshot group
in the Snapshot Groups tab, and then click Create FS Pairs .
4. In Create Pairs using Volumes as Root Volumes , select Yes or No .
5. In Select By , select LUN to create a pair by specifying LUN. Select LDEV to create a pair without
specifying LUN.
6. From the Available Primary Volumes table, select the LDEV you want to assign as the P-VOL.
NOTE: The Online Migration volumes do not appear in the Available Primary Volumes table.
7. In Cascade , select Enable to create a cascaded pair.
8. In Pair Type , select Snapshot to create a pair with the snapshot attribute. Select Clone to create
cloned pairs. Skip to step 11 if you selected No for Create Pairs using Volumes as Root Volumes .
9. Click Select Pool .
10. In the Select Pool window, select a pool from the Available Pools table.
11. Click OK .
Managing Fast Snap Pairs 115