Exchange Storage Group and MDBDATA backup

So if they backing up MDBDATA as part of the whole system backup.  Would it help when the systems tanks and need to restore?  

I wonder there is a VSS in a failed state on the server.  Does it play a role in that backup?  Should I repair VSS first before deselecting MDBDATA backup?

VSS writer - Microsoft Exchange Writer Failed or Waiting for completion

Cause: The VSS writer for Exchange Server enables applications to back up and restore Exchange storage groups that are stored on hardware that supports the VSS.

I know the fis should be to apply updates and hotfixes.  I was just curious if I should do that first before deselecting MDBDATA from backups.

Got it.  That's what I wanted to hear.