About backup and restore of MongoDB using Commvault software:
Note: Please ensure that no backup jobs are currently running before changing configuration settings of the databases (e.g. paths).
What data can be backed up, and what data cannot? What data can be restored? Find answers to these questions here: MongoDB
First steps when using MongoDB with Commvault: Getting Started
Information on how to perform a backup for MongoDB
Information on how to perform a restore for MongoDB