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Recovery from configuration errors

Configuration errors occur when the configuration of the Primary and Secondary RVGs is not identical. Each data volume in the Primary RVG must have a corresponding data volume in the Secondary RVG of exactly the same size; otherwise, replication will not proceed. If a volume set is associated to the RDS, the configuration of the volume set must also match on the Primary and on the Secondary.

Errors in configuration are detected in two ways:

• When an RLINK is attached for the first time, the configuration of the Secondary is checked for configuration errors. If any errors are found, the attach command fails and prints error messages indicating the problem. The problem is fixed by correcting the configuration error, and then retrying the attach.
• Changes that affect the configuration on the Primary or Secondary may cause the Secondary to enter the pause state with the secondary_config_err flag set. The problem is fixed by correcting the configuration error, and then resuming the RLINK.