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Remote SQL backup failing in Backup exec; SQLVDI error in application logs

Cannot get Backup Exec 11d to successfully backup any db's on remote SQL server 2005 instance.

specifics:
backup works fine from within management console on the sql server box when backing up locally.
sql server agent installed/reinstalled correctly on Backup exec server, selection can browse db's.
other sql backups (sql 2000) on another server work OK
other non SQL backup jobs can write to media.

error details:

Backup exec reports the following error (for each db in selection):
"V-79-57344-33938 - Write on "Training_00__810ffe3a_78fd_47dc_9a00_a00824e50d2d_" failed: 995(The I/O operation has been aborted because of either a thread exit or an application request.)"

and the following exception:
The item <backup server FQDN name>\Training in use - skipped.

On the SQL box the following Application log error (in this order, at same time):
event id 1, source SQLVDI:
"SQLVDI: Loc=CVDS::GetConfiguration. Desc=VerifyServerisAlive. ErrorCode=(5)Access is denied.
. Process=6040. Thread=7224. Client. Instance=. VD=Global\Training_00__810ffe3a_78fd_47dc_9a00_a00824e50d2d__MemoryName_0."
 
event id 1, source SQLVDI:
"SQLVDI: Loc=TriggerAbort. Desc=invoked. ErrorCode=(0). Process=6040. Thread=7224. Client. Instance=. VD=Global\Training_00__810ffe3a_78fd_47dc_9a00_a00824e50d2d__MemoryName_0. "

there is then an error within the SQL server  log, duplicated in the Application log:
Error: 3041, Severity: 16, State: 1.
Message
"BACKUP failed to complete the command BACKUP DATABASE Training. Check the backup application log for detailed messages."


The initial error points to an access denied error, but the resource credentials used are domain admin and test OK. The problem seems to be with SQLVDI; virtual device interface, but i am unsure how to troubleshoot this, I cannot find anything on the internet with the specific "ErrorCode=(5)Access is denied" error for SQLVDI

thanks
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nikhil_deshpande

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Sorry, Im not sure what you mean by that.

The problem I am having is using Backup exec to back up a remote SQL server in conjunction with there own SQL agent....this is obviously a supported configuration
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I had come across the hotfix you refer, but had decided against trying it as the error code within the event description is different:
"...ErrorCode=(288)Attempt to release mutex not owned by caller..."

and the article advises to only use the hotfix for that specific issue. Maybe it is still worth a shot.

As far as AOFO, i have been running the SQL job as a test job on its own since the start of my troubleshooting. Also can confirm there are no other backups running from SQL server box
Just to be sure about AOFO. Even though SQL is backed up on its own, you could still have "Use Advanced Open File Option" checked. Make sure it's not checked.

I agree that the hotfix is not a good match. Maybe still worth a try - but you should probably test it first on a test system.

Maybe you could try to create a new account, make it a SQL sysadmin and a domain admin. Then use it to back up via Backup Exec. Just in case there's something funky going on with your current account.

Anything else you can see in the ERRORLOG file for SQL at the time of the errors?
Forced accept.

Computer101
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