Configuration of Disaster Recovery (DR) Backups


Disaster Recovery (DR) Backups are executed using the following phases:

  • Export

    During the export phase, a metadata backup of the SQL databases is copied to the default staging directory located in software_installation_directory\CommserveDR.

    Recommended: Store the DR backup in a dedicated network location that is accessible from both the CommServe hosts. If this network location is on Windows mount path, then ransomware protection is enabled by default. Use an UNC path to access the location. Ensure that this dedicated location is not used for any other CommServe task. Local disk or local clustered disk is not safe and is not a common practice.

    Additional export destination can be setup as follows:

    • To a local or network path

    • To the Commvault Cloud Services portal

    • To a cloud storage library

  • Backup

    During the backup phase, the metadata available in the staging directory in the CommServe, along with the configured log files, are backed up using the DR storage policy as follows:

    • A default DR storage policy (CommServeDR) is automatically created when the first library is configured in the CommCell.

      By default, the primary copy of the DR storage policy is created as a WORM copy to prevents accidental deletion of data that is not qualified for aging.

    • A secondary copy for the DR backup data is automatically created when you configure the first tape library. An Auxiliary Copy schedule which runs every 15 minutes is automatically created. If necessary, you can change the frequency of this Auxiliary Copy operation.