Resynchronizing the pairs in a mirror
When you resynchronize a mirror, all the pairs with the mirror ID are resynchronized and update data copy to the S-VOL is resumed.
Prerequisites
This operation can be performed only from the primary system.
Mirror status must be Stopped.
Resynchronizing a mirror when I/O load is low reduces impact on performance.
To resynchronize a mirror
Open the Remote Replication window:
In Hitachi Command Suite: On the Resources tab, expand the Storage Systems tree, right-click the target storage system, and click Remote Replication.
In Device Manager - Storage Navigator: In the Storage Systems tree, click Replication > Remote Replication.
Select the Mirrors tab, and then select the mirrors to be resynchronized.
From the Actions menu, click Remote Replication > Resync Mirrors.
In the Resync Mirrors window, review the mirrors in the Selected Mirrors table. You can remove a mirror from the table by selecting it and clicking Cancel.
Click Finish.
In the Confirm window, review the settings and enter a task name in the Task Name box.
Click Apply to save your settings to the system.