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Backup Failed SQL 2005


Backup Failed SQL 2005

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pradeep.mohan
pradeep.mohan
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Hi,

I cant able to take the database full backup its says database log file is corrupted. Please find the attached screenshot for your ref.

Its very urgent. Please help on this.

Pradeep
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Have you checked the error log? What information captured in it? Is this production server? Have you executed DBCC CHECKDB?

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pradeep.mohan
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Yes its a production server and already executed DBCC CHECKDB command but there was no error found.

Pradeep
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You haven't updated error from sql error log?

Can you restore with command line?

BACKUP DATABASE <DBNAME> TO DISK = '<PATH>'

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Yogeshwar Phull
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Use backup log with TRUNCATE_ONLY option to truncate the log entries from .ldf file and run a full backup. It should work. But I would really recommend to have your I/O subsystem checked once with people who are responsible to manage this...
GilaMonster
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What does the error log say?


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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pradeep.mohan
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Error log is :

Backup detected log corruption in database Wss_Content. Context is Bad Middle Sector. LogFile: 2 'D:\Data\xxxx_log.ldf' VLF SeqNo: x280d VLFBase: x10df10000 LogBlockOffset: x10efa1000 SectorStatus: 2 LogBlock.StartLsn.SeqNo: x280d LogBlock.StartLsn.Blk: x8477 Size: xcc00 PrevSize: xec00

Pradeep
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Oooh, a sharepoint content database...

Switch the database into simple recovery, checkpoint, checkpoint, checkpoint, (and a few more just to be sure), switch the DB back to full recovery and take a full backup, then you should be able to resume both full and log backups without error.

Then get the storage people to have a look at the IO subsystem for problems.


Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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