Synchronization with synchronous mode Remote Copy groups
Full synchronization
The length of time for a full synchronization to complete depends on the following:
Size of the volumes
Amount of data in the volumes
Size of the replication links
Rate of new host writes to the virtual volumes in the group
Resynchronization
In synchronous mode Remote Copy groups, I/O is copied directly from the source Remote Copy group.
When synchronous mode
Remote Copy groups are stopped, snapshots of the groups are created. When these
Remote Copy groups are restarted, the snapshots are used to resynchronize the source and target groups. The length of time for resynchronization to complete depends on the following:
How much data changed on the virtual volumes in the group while the group was suspended
Speed of the replication links
Rate of new host writes to the virtual volumes in the group