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NT Backup errors

Posted on 2008-10-28
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Last Modified: 2013-12-23
I seem to be running into trouble with some of our servers running NT backup.  Every time one of the scheduled full backups run there seems to be a problem.  It will run for a few hours and then it won't successfully complete.

Error: The device reported an error on a request to write data to media.
Error: C: is not a valid drive, or you do not have access.

I am also getting a code 1f

The differentials are working just fine and are being backed up at the same location.
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Question by:bkort1
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7 Comments
 
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Expert Comment

by:MiniDevo
ID: 22824249
What brand/type of server are you running? I'm seen Dell PowerEdge servers pop up with this type of tape drive error, but only in Windows Server 2003.
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Qlemo earned 500 total points
ID: 22824486
Are you backup on tape or disk? There are bugs using disk targets in combination with (file system) compression, when reaching 40 GB.
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Author Comment

by:bkort1
ID: 22824820
We are backing up on disk.  When what reaches 40 GB?  The disk that we are backing up on?
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LVL 70

Expert Comment

by:Qlemo
ID: 22824890
The resulting file
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LVL 70

Expert Comment

by:Qlemo
ID: 22824903
The resulting file's uncompressed (!) size, to be precise.
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Author Comment

by:bkort1
ID: 22843593
Actually I am running a full backup right now, on one of the ones that failed last time, and it looks to be about 31 GB when it is done.  What can be done here?
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LVL 70

Expert Comment

by:Qlemo
ID: 22843767
Ok, so we have to follow another branch ... Does your eventlog tell you more about IO failures?
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