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NTBackup

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by demosthanese

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Recently I have had 2 "failed" backups out of NTBackup on sbs2003. After digging around a bit ive found that the backup portion actually completed without issue. the .BKF is in tact. The error is created during the verification phase, after the .BKF is written. i went through my access/upload/download logs and found where one of the contractors is working around the same time as the backup. So when he uploads something in the middle of a shadow copy backup and the verification starts afterward the backup and the original dont quite match. Is there any way to get around this error or is it something that im just going to have to live with?

8 replies

by scott_heath

Most likely it is something you wil lhave to live with. Better software might get the CRC of each file and store it for comparison afterward. Are you sure that this is your issue. Have you used Technet or Google to see if you can find any details about how the verification process works?

by bart777

NTBackup isn't very robust.
This is going to happen any time that the contractor is changing things during the backup window.

The only ways to fix it is to;
Get them to do their copies at a different time.
Move the backup to a different time.
Remove the verify check from the backup job. (Not a good idea)

Good luck

by demosthanese

well the backup is in tact and the error doesnt occure until the second drive in the verify segment so im pretty sure. I did some checking and every answer has to do with moved/missing files. But there are only 4 database files,system state, and the exchange store being backed up and they never move.

by cg it

what media are you using?

Tape usually gives you errors no matter what. Often the only way to verify backup to tape is to restore to a test server.

if it's to a HDD, shadow copy will generate the error during backups exactly for the reason you state. Shadow copy says there's been a change when in fact there might not be any.

by cg it

on this problem with Shadow Copy.

might check MS Help and Support or go to the MS Small Business Channel site or visit the microsoft Technet Discussion group.

[MS Channel Site URL]

http://www.mssmallbiz.com web site.

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