VVR enables you to verify that the data on the Secondary is identical to the data on the Primary data volumes, either when the application is active or inactive. VVR provides the following methods to verify the data at the Secondary site: online data verification and offline data verification.

Online data verification allows you to validate the data even when replication is in progress. In this method instead of the actual volumes, the point-in-time snapshots are compared. This method is referred to as online data verification.

Offline data verification can be performed only when replication is not active. If you have already created the Primary and Secondary volumes and replication is in progress, you need to pause replication and then perform data validation between the corresponding Primary and Secondary volumes to make sure that the data volumes on the Primary and Secondary are the same. To do this, use the vradmin syncrvg command with the -verify option. To use this command for verifying the data, the Secondary must be up-to-date. This command performs a comparison of the checksums on the corresponding Primary and Secondary volumes.

You can also validate the data on new data volumes before adding them to an RDS.

See Verifying the data on the Primary and Secondary volumes .

See About SmartMove for VVR.