Failed BackUp

  • What would be the best action to take when you see the following error message

    BACKUP failed to complete the command BACKUP LOG 'Databasename'. Check the backup application log for detailed messages.

    Thanks in advance

  • like it says: "check sqlserver errorlog" !!

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  • what is the exact error tha you get when the backup command is fired. it might be something to do with permissions.

    Cheers,
    Sugeshkumar Rajendran
    SQL Server MVP
    http://sugeshkr.blogspot.com

  • Run your backup again, then do a sp_readerrorlog and grab the full error.

    If I were to take a random guess, I'd say it's permissions to the file system.

  • check the backup application log -actually means for you to check the Windows Event Viewer Logs. The application log and the SQL Server Error Log are 'tied' together with the application log usually showing more details.

    Also, look at the entries above and below that one in the SQL Server Error log.

    A lot of times this error is due to drive space issues.

    -SQLBill

  • If you created a job to back up ther db's with a third party application; it is likely that the failed job, has logged an error log, SMS will not give you much information, so you will need to check the log file which is been used by the application to log errors.

  • Hi

    May i know how to see full detailed message, if any error and all.

    basically i will use event viewer but in that we will not get full information about error messages.in that it show see application log

    like that.:cool:

    may i know where application log file will be tr

    Thank you

    Satish

  • Hi

    May i know how to see full detailed message, if any error and all.

    basically i will use event viewer but in that we will not get full information about error messages.in that it show see application log

    like that.:cool:

    may i know where application log file will be tr

    Thank you

    Satish

  • Take a full backup.

    ---------------------------------------------------
    Thanks,
    Satheesh.

  • Erode P. Satheesh (3/24/2009)


    Take a full backup.

    Why?

  • While taking a full backup a internal status flag for full backup should get reset. Some times for some reason it will not get reset. Which will raise this error. Most of the times it can be fixed by taking another full backup where we are assuming that the flag will get reset at this backup. If the problem still exists after taking a full backup or if it is happenning for all the databases in a server microsoft has released a hot fix, http://support.microsoft.com/kb/921106.

    For me it got resolved after taking a full backup.

    ---------------------------------------------------
    Thanks,
    Satheesh.

  • Great!Thanks for the info 🙂

  • This is EXACTLY the sort of useless, deliberately obscure, error message that gives Microsoft such a bad name.

    I set up a Maintenance plan to do an incremental backup of a rather large DB to run nightly at 11:00 PM. I checked this morning and the folder where it was to be copied to was empty. I checked the Windows application event log, and the SQL Server event log, and got the same message: to check the backup application log. Searched both local drives for *.log files more recent than two days old, got nothing.

    Any suggestions?

  • Have you tried running the backup manually in SSMS (IE using T-SQL)?

  • Did you try viewing the history for the maintenance plan? Right-click on the maintenance plan and View History.

    This should show you which step failed and why.

    When you say incremental, are you talking about a transaction log backup or a differential backup? You cannot perform either of these if you don't have a full backup performed first.

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