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Windows Server 2000/2003 Thread, NTBackup failing in Technical; It backs up the C: drive fine, moves to the D: drive and it just seems to time out and ...
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    CHR1S's Avatar
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    NTBackup failing

    It backs up the C: drive fine, moves to the D: drive and it just seems to time out and fail.

    Event Type: Error
    Event Source: NTBackup
    Event Category: None
    Event ID: 8001
    Date: 09/03/2013
    Time: 21:51:45
    User: N/A
    Computer:
    Description:
    End Backup of 'D:' 'Warnings or errors were encountered.'

    Verify: On
    Mode: Replace
    Type: Normal

    Consult the backup report for more details.
    So I consult the report -

    Backup started on 08/03/2013 at 21:42.

    Error: The device reported an error on a request to write data to media.
    Error reported: Unknown error.
    There may be a hardware or media problem.
    Please check the system event log for relevant failures.
    The operation was ended.
    Backup completed on 09/03/2013 at 21:51.
    Directories: 9501
    Files: 141386
    Bytes: 77,128,286,315
    Time: 1 day, 0 hours, 9 minutes, and 42 seconds

    Error: D: is not a valid drive, or you do not have access.


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

    The operation did not successfully complete.

    ----------------------
    There is space, the drives are online and accessible. Any Ideas?

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    Mcshammer_dj's Avatar
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    On my servers this is normally a sign of problems on the media, what are you backing up onto??

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    CHR1S's Avatar
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    NAS - Seems like no errors on the device.

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    Quote Originally Posted by CHR1S View Post
    It backs up the C: drive fine, moves to the D: drive and it just seems to time out and fail.



    So I consult the report -

    Error: D: is not a valid drive, or you do not have access.


    There is space, the drives are online and accessible. Any Ideas?
    We had this some time ago and to be honest it turned out to be lack of space. Not sure if ntbackup creates large temp files or similar, but as I say at first glance there appeared to be sufficient space - but there wasn't!

    This was our scenario with this error message anyway. Not saying yours is the same, but I would definitely try larger media if possible to rule it out.

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    I had a similar thing backing up to a USB caddy. I could access the backup drive, manipulate files and all looked fine. But NTBackup failed. I swapped out the caddy and it's right as rain. Do you have another backup device you can try?

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    CHR1S's Avatar
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    2TB drive with a backup size of approx 900GB, 1.7Tb Free

    Just did a new backup selection, will see how it goes.

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    CHR1S's Avatar
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    Failed with the same error.

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    How big is the backup file getting? Could it be running into a maximum file size problem on the filesystem of the NAS?

    Conversely, are there any large files in the source that could be too big for NTBackup?

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    Have you tried backing up a smaller number of files? That should help determine if it's a file size issue.

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    CHR1S's Avatar
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    @AngryTechnician @laserblazer - just trying your suggestions now, will let you know.

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    Is the drive mapped ? Or are you backing up using \\blahblahserver\share ?

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    CHR1S's Avatar
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    Quote Originally Posted by mattx View Post
    Is the drive mapped ? Or are you backing up using \\blahblahserver\share ?

    Tested with both mapped and UNC

    Current backup of H: Drive going fine (touch wood)
    Seems specific to the D: drive, will investigate further.

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