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Error backing up SQL database

Posted on 2012-03-29
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Last Modified: 2012-06-03
Hi

I have been receiving errors when backing up 2 databases on our SQL server. See example below. The workaround I have been using is to take the database offline, bring it back online, run backup again and it runs fine. Seems to happen every couple of days or so. The database log file definately exists.

SQL Server: Windows 2003 x64 R2 Service Pack 2, SQL Server 2008 Service pack 1
Backup software: Commvault 9, Service Pack 5a

Description: Error encountered during backup. Error: [The log for database 'example' is not available. Check the event log for related error messages. Resolve any errors and restart the database. A nonrecoverable I/O error occurred on file "09f8be50-067a-408c-a656-4f358805e9b3:" 995(failed to retrieve text for this error. Reason: 1815). BACKUP DATABASE is terminating abnormally. An exception occurred while executing a Transact-SQL statement or batch.]

Appreciate any suggestions.
Cheers
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Comment
Question by:stvmph
5 Comments
 
LVL 4

Expert Comment

by:dee_nz
ID: 37785428
Check if there is enough free disk space for the SQL backup?
0
 
LVL 10

Expert Comment

by:sqlservr
ID: 37785859
error occured when the log (LDf ) size is very big\
to check the log file size , please use
dbcc sqlper(logspace)
.
or

sp_helpdb 'dbname'

step 2)
shrink the log file,
step 3)
take the backup
1
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LVL 12

Expert Comment

by:S00007359
ID: 37786348
please check the following:

1) when does the av scan the sql servers
2) when do the backups run
3) is there any sql maintenance tasks happening when the backups run
4) perform the disk defrag on the disk where the sql databases exist
5) perfrom a one off flat file backup and see what happens
6) upgrade your commserve, medi agents and sql ida agents to sp5b
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Accepted Solution

by:
stvmph earned 0 total points
ID: 38025369
Under Database Properties -> Options. Auto Close was set to True. Changed this to False and that resolved the issue.
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Author Closing Comment

by:stvmph
ID: 38041410
Solution found elsewhere.
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