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Restore Job - Unable to extract mailbox messages from the Exchange backup

Created: 04 Mar 2013 • Updated: 04 Mar 2013 | 6 comments

I've been trying to restore Exchange mailbox data from my deduplication store for several days now without success.  Each time I get error E00002F7 with the description "V-79-57344-759 - Unable to complete the operation for the following reason: VFF Open Failure.  This can be caused by low memory or disk resources."

I've tried adding the registry key "VFF Extended Timeout" with various values on both my Exchange and media server, restarted services and servers and keep getting the same result.  I thought perhaps the registry key above looked wrong so also added it without spaces on both servers but no luck there either.  BE2012 is fully patched and so is the remote agent on the Exchange server, and Exchange 2010 is running all service packs and updates.

I'm a little exposed at the moment but thankfully the data I need to restore isn't business critical.  I've tried restoring from a different mailbox however and get the same result, so at the moment I cannot restore any Exchange data!  I have done file level restores so everything else is ok.

 

Operating Systems:

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pkh's picture

Try these

1) push out the remote agent again to the Exchange server

2) duplicate the backup set from the dedup folder to a disk storage and then restore from this duplicated backup set.

AB_Panthro's picture

Thanks for that.  Should I uninstall the agent first or just push it out over the top?  I updated the agent from the media server on Friday.

AB_Panthro's picture

Tried removing and re-adding the agent last night, removed the server completely from BE2012 and re-added it along with the agent.  Full backup run last night but still cannot restore.

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

Sits at pre-processing for a few mins then fails. 

The backup set is 500GB so I can't easily duplicate it. 

VJware's picture

Would you pls paste the complete job log. And remove the registry key which is incorrectly named VFFExtended Timeout.

AB_Panthro's picture

Hi there,

Complete job log:

Job Log for SRVEX01.DOMAIN.LOCAL Restore 00047

--------------------------------------------------------------------------------

Completed status: Failed    See error(s) 
Expand AllCollapse All 

Job Information
Job server: SRVBK01
Job name: SRVEX01.DOMAIN.LOCAL Restore 00047
Job started: 05 March 2013 at 10:46:34
Job type: Restore
Job Log: BEX_SRVBK01_03823.xml

 

Job Operation - Restore 

Server - SRVEX01.DOMAIN.LOCAL
Drive and media mount requested: 05/03/2013 10:46:38
Drive and media information from media mount: 05/03/2013 10:47:07
Drive Name: Deduplication disk storage 0001:3
Device Hostname: SRVEX01.DOMAIN.LOCAL
Media Label: OST00001916-4B13F040A25A6E83
Media GUID: {fa5bf145-2ba4-45ce-aa16-ab44416bed22}

All Media Used
 OST00001916-4B13F040A25A6E83

 IMG000752

 Drive and media information from media mount: 05/03/2013 10:47:33
Drive Name: Deduplication disk storage 0001 (\\.pdvfs\SRVBK01\2\BEData\IMG000752)
Media Label: IMG000752
Media GUID: {64cd1fbe-1057-4009-b8c2-848c1db0041b}
 V-79-57344-759 - Unable to complete the operation for the following reason: VFF Open Failure.  This can be caused by low memory or disk resources.

Set Information - \\SRVEX01.DOMAIN.LOCAL\Microsoft Information Store\Mailbox Database 1491068179 SRVEX01
Restore Set Information
Restoring data to \\SRVEX01.DOMAIN.LOCAL\Microsoft Information Store\Mailbox Database 1491068179 SRVEX01.

Storage Media #1: " Media created 04/03/2013 23:00:12 "
Backup performed on 04/03/2013 at 23:06
Backup set #1: " Exchange Server-Full "

 

Restore started on 05/03/2013 at 10:48:13.
Restore completed on 05/03/2013 at 10:48:13.

Restore Set Summary
Restored 0 Exchange Server stores
Processed 0 bytes in  1 second.
Throughput rate: 0.000 MB/min

 

 

 

 

Job Completion Status
Job ended: 05 March 2013 at 10:48:13
Completed status: Failed
Final error: 0xe00002f7 - Cannot extract mailbox messages from the Exchange backup. Review the job log for more information.
Final error category: Resource Errors

For additional information regarding this error refer to link V-79-57344-759

 

Errors
Click an error below to locate it in the job log
Restore- SRVEX01.DOMAIN.LOCALV-79-57344-759 - Unable to complete the operation for the following reason: VFF Open Failure.  This can be caused by low memory or disk resources.