Performing a Full Backup of a MongoDB Cluster On Demand

You can perform a full backup of a MongoDB cluster on demand.

Full backups are based on IntelliSnap. During full backups, the databases are quiesced before taking the snapshots of the data path volumes.

On Linux, configurations that have symbolic links to data paths and configurations that have symbolic links under data paths are supported.


  • On Linux, the following MongoDB storage configurations are not supported:

    • Nested symbolic links in the dbPath specified in the mongod configuration file.

    • If both the directoryPerDB and directoryPerIndex storage configuration options are enabled, the identified symbolic links to the index and to the collection sub-directories.

    • Commvault does not back up mount points from subdirectories that are under the dbPath. To protect the mount point on the subdirectory that is under the dbPath, create a symbolic link pointing to the mount point.

  • If the master node for an instance is not available due to a network failure or any other reason and a backup is in progress, then the Commvault software picks another node as master node from the replica set for backup operation. This is applicable only for the replica set environments.

Before You Begin

If you are backing up the MongoDB server on a Linux computer, verify that the server is started with the absolute path to the configuration file.


  1. From the navigation pane, go to Protect > Big data.

    The Big data page appears.

  2. In the row for the cluster, click the action button action_button, and then click Back up

    The Select backup level dialog box appears.

  3. To perform a full backup, select Full.

  4. Click OK.