Recently it was noticed that an active mailbox database copy got failed over and was in a “Failed and Suspended” status.
Upon analyzing the event viewer, the following alerts were noticed:
The first thing you can do is to right click on the problematic database and select Resume Mailbox Database Copy
The database will start re-synchronizing and will become healthy. If still issue persists, you can right click the database and select Update Mailbox Database Copy option.
You can also use Exchange shell to troubleshoot these issues.
When further analysis was performed, we noticed that the issue occurred due to the storage drive issues which was later resolved.