HP XP RAID Manager Software - Manual (Page 42)

Pair resynchronization and restoration
Resynchronizing a pair does the following:
•
Increases capacity in the data pool.
•
Deletes data in the pool.
•
Mirrors the V-VOL with the current data in the P-VOL.
Reverse resynchronizing a pair restores the P-VOL using data from the V-VOL.
Related topics
•
“Resynchronizing and restoring pairs” (page 42)
Prerequisite information
•
The pair must be in “PSUS” status.
•
SS does not support high speed mode, even if you specify it.
•
If a failure occurs when you reverse resynchronize a pair, the pair status changes to “PSUE”.
To restore the pair, you must delete the SS data. However, when you do this, the pair’s P-VOL
data cannot be guaranteed. Therefore, take appropriate measures, such as overwriting the
backup data to the P-VOL or formatting the P-VOL.
Resynchronizing and restoring pairs
1. In the Storage Systems tree, click Replications > Local Replications > Pairs.
2. In the Pairs tab, select the pairs you want to resynchronize, then click Resync Pairs.
3. In the Resync Pairs window, for Resync Type, select one of the following and then click Finish:
•
If you have split or deleted the pool data, to resynchronize the pair, select Normal Copy
(Primary > Secondary).
•
To reverse resynchronize the volumes from the S-VOL to the P-VOL, select Reverse Copy
(Secondary > Primary). All differential data is updated to the P-VOL.
4. On the Confirm window, for Task Name, type a name for the task and then click Apply.
NOTE: For character and symbol limits and default values, see “Complete SIMs window”
(page 93) .
The pair is resynchronized and restored.
Pair deletion
Deleting a pair ends the SS relationship between the P-VOL and V-VOL. The following also occurs:
•
SS data for the pair is deleted from the data pool.
•
The status changes to “SMPL (PD)”. When the operation is complete, the status changes to
“SMPL”.
NOTE: The time required to delete a pair or pairs can be from several seconds to more than ten
minutes. The time increases when you delete multiple pairs at the same time or if you use a large
area of the pool for SS data.
42 Pair operations