Issue: Recently I encountered a issue where Commvault backups for SQL databases were not happening for several days post database configuration in AlwaysOn availability groups.
Scenario: In many organizations, there is a separate backup team to take all types of backups including database backups. During initial configuration there were no databases configured in availability groups and database backups were configured through Commvault. Consider a scenario where database team configures some of databases in AlwaysOn availability groups and later DBA discovers that there is no database backup available after they were added into AG.
Reason: This happens as Commvault tool does not recognize databases which are configured in AG until Commvault is configured for that.
Solution: You need to ask your backup administrator person to reconfigure Commvault database backups to identify AlwaysOn availability group databases as per below article.
https://documentation.commvault.com/commvault/v11/article?p=18295.htm
Hope this information will help you!
Happy Learning!!