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Full -- The job failed with the following error: Cannot extract mailbox messages from the Exchange backup. Review the job log for more information.

Created: 27 Jun 2014 | 3 comments

Hi

Backup Exec 2010 R3 on Windows Server 2008 R2 Std.

Completely randomly and intermittently, I get an error of

Full -- The job failed with the following error: Cannot extract mailbox messages from the Exchange backup. Review the job log for more information.

I have seen several solutions which I have tried previously, mainly disabling GRT, then trying again, but this happens from day to day, regardless of if anything is done on the server (i.e no reboots, noone even logs on yet next backup is fine)

Any ideas?

Operating Systems:

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VJware's picture

This is a very generic error message. Does the job log contain any additonal errors such as MAPI error or VFF error etc ?

What is the version of Exchange and are you backing up to tape or disk ?

And do ensure AOFO is disabled in the Exchange backup job properties.

Lastly, create these registry keys as well ~

1. Add the following registry key on the Exchange server(s):

Key : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VirtFile
Value: VFF Extended Timeout
Type: DWORD
Set value (Decimal) to 600.
Restart all the Backup Exec Services for the changes to take effect.

2. Add the following registry key on the Exchange server if backup is running to tape. If running to disk, add the following registry key on the Backup Exec server :

Key : HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VirtFile
Value: Detach Timeout
Type: DWORD
Set value (Decimal) to 10000
Restart all the Backup Exec Services for the changes to take effect.

3. Add the following registry key on the Exchange server if backup is running to tape. If running to disk, add the following registry key on the Backup Exec server :

Key : HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec For Windows\Backup Exec\Engine\Exchange
Value: OnHostTemp
Type: String
Set value to  C:\Temp (Or any other volume which has ample amount of free disk space to stage the entire Exchange IS
 

Reboot the servers for the changes to take effect and rerun the backup.

 

hongman's picture

Ah, ok I see. There is 1 transaction log marked as corrupt, on one of the Exchange DB's.

Will this rectify itself or do I need to take action, as it seems to come and go at random.

I am backing up to USB Disk and this is 2010 R3.

AOFO is disabled throughout.

I have added the keys and restarted the services - will keep eye to it over next week or so!

VJware's picture

If a transaction log is marked corrupt, I would recommend to run a full backup (without GRT and without consistency check) to flush the logs. Once the backup is successful, enable GRT and rerun the backups as per the schedule and observe.