Hi, I'm getting an error which does not seem to match in the DPM 2010 ID codes. Randomly, I have backups of an exchange 2010 DAG that are failing. The backup will run for a short time (5mints..up to 10minuts) and then will fail with the following error:

Type: Recovery point
Status: Failed
Description: Backup failed as another copy of 'user' database is currently being backed up. (ID 32628 Details: Internal error code: 0x80990D51)
 More information
End time: 4/25/2011 10:37:27 PM
Start time: 4/25/2011 10:26:55 PM
Time elapsed: 00:10:31
Data transferred: 0 MB
Cluster node -
Recovery Point Type Incremental Sync
Source details: 06001
Protection group: EXCH2010 - 06001

I've tried restarting the DPM server to troubleshoot. I say this happens randomly because I've had some backups successfully complete against the same exchange server. The only other item that seems odd is when creating protection groups against the DAG, the intial lookup seems to take forever. Not sure what to try next. 

• Moved by MarcReynolds Tuesday, April 26, 2011 12:37 PM (From:Data Protection Manager)

Hello John,

When this happens, if you go to the exchange server and from within the exchange management shell type: Get-MailboxDatabase 'DBName' -Status |fl
Does this show the "BackupInProgress" flag set to true or false?


http://technet.microsoft.com/en-us/library/bb124924.aspx

Thanks
Shane

• Proposed as answer by ShaneB. _Moderator Wednesday, April 27, 2011 1:08 PM

This is a new answer to an old post, but I've found that performing a switchover to another copy of the DB in the DAG clears the issue for me and DPM starts running again.

This is with Exchange 2010 SP1 UR6.

• Edited by ChrisinSF1 Thursday, August 02, 2012 2:56 PM

A solution which does not require a restart and it works.

Use Windows Server Backup and start a backup of the Exchange database file. Once the backup starts cancel it this will set the BackupInProgress to false. Now use your regular backup software and run the backup job again.

• Proposed as answer by Allowishes8 Thursday, October 03, 2013 4:22 AM