Sync While Active - checksum-based synchronization - assure_mimix - 6.0

The sync while active checksum-based synchronization performs a checksum by region of the Production Volume Set (PVS) or one or more Logical Volumes (LVs) in the PVS and the replica logical volumes on the recovery server(s) and only synchronizes the region if the checksums do not match.

In release 5.2.01.00, this option is only available from the command line.

From the command line:

• To synchronize all logical volumes in the replication group, use the following command:

       scconfig -C<Context ID> -T

Keep in mind the following while scconfig -T is running:

• Do not cycle Assure MIMIX for AIX or the servers.

• Ensure that you do not lose your terminal session, use (nohup scconfig -T &).

If the scconfig -C<Context ID> -T command was interrupted and the command is re-executed, any logical volume in the replication group that is partially synchronized, 0.000% synchronized or 100.000% synchronized will be started from the beginning.

• To restart synchronization of all logical volumes in the replication group from where the previous operation left off, use the following command:

scconfig -C<Context ID> -T -G

(Restarts from where the previous operation left off.)

The following conditions apply:

• Any logical volume in the replication group that is partially synchronized will be restarted from where the previous operation left off.

• Any logical volume in the replication group that is 100.000% synchronized will be not be restarted.

• Any logical volumes in the replication group that is 0.000% synchronized will be started from the beginning.

• To synchronize one or more specific logical volumes in the replication group, use the following command:

scconfig -C<Context ID> -T -L (name from sclist -ZC<Context ID>) -L (name from sclist -ZC<Context ID>)

If this command was interrupted and the command is re-executed, any specific logical volume that is partially synchronized, 0.000% synchronized or 100.000% synchronized will be started from the beginning.

• To restart synchronization of one or more specific logical volumes in the replication group from where the previous operation left off, use the following command:

scconfig -C<Context ID> -T -G -L (name from sclist -ZC<Context ID>) -L (name from sclist - ZC<Context ID>)

The following conditions apply:

• Any specific logical volume in the replication group that is partially synchronized will be restarted from where the previous operation left off.

• Any specific logical volume in the replication group that is 100.000% synchronized will be not be restarted.

• Any specific logical volumes in the replication group that is 0.000% synchronized will be started from the beginning.