Hewlett Packard Enterprise HPE XP7, User Manual, Page: 125 / 311

For Fast Snap pairs where the cascade attribute is enabled, the information displayed in Synchronization
Rate (%) of the View Pair Synchronization Rate window, or the information displayed by the raidcom get
snapshot command varies depending on the pair status. For details, see
View Pair Synchronization
Rate window on page 227.
NOTE: The pair synchronization rate may not change when you view the rate while restoring the Fast
Snap pair. To view the up-to-date rate, wait until the task has completed.
For more information about monitoring the pair synchronization rates, see Viewing pair synchronization
rates on page 142.
NOTE: If the amount of snapshot data in selected P-VOLs or the total number of pairs in selected
snapshot groups exceeds 37,768, an error message appears when attempting to perform pair tasks.
Prerequisites
• You must have the Storage Administrator (Local Copy) role.
• The Fast Snap pair must be split ("PSUS" status).
• In RAID Manager, use the
raidcom modify snapshot -snapshot_data resync
command for
normal copy, and the
raidcom modify snapshot -snapshot_data restore
command for
reverse copy.
Procedure
1. In the Explorer pane, click Storage Systems , expand the storage system tree, expand Replication ,
and then click Local Replication .
2. In the Local Replication window, select a P-VOL in the FS Root Volumes tab or a snapshot group in
the Snapshot Groups tab.
3. Click Operate FS Pairs .
4. In the FS Pairs window, select the pairs you want to resynchronize, and then click Resync Pairs . You
can specify P-VOLs until the number of snapshots or clones reaches 32,768. You can also specify
snapshot groups until the number of pairs reaches 32,768. For cascaded pairs with layers, specify
pairs at the lowest layer, and then higher layers.
5. For Resync Type , select Reverse Copy (Secondary > Primary) for a full restoration of P-VOL data
from the S-VOL.
6. Click Finish , and then confirm the settings.
7. Accept the default task name or enter a unique name.
You can enter up to 32 letters, numbers, and symbols, except the following:
\ / : , ; * ? " < > |
8. If you want to monitor the task after submitting it, select Go to tasks window for status .
9. Click Apply to submit the task.
The Fast Snap pair is restored ("PAIR" status).
More information
Fast Snap pair restoration on page 29
Resync Pairs wizard on page 274
Managing Fast Snap Pairs 125