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NTBackup 'An inconsistency was encountered...'

Posted on 2006-11-21
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Last Modified: 2012-06-27
We're running SBS 2003 and NTBackup. We have 4 hard drives in the server that are split into a raid 1 array. These are partitioned into 7 partitions.

So:
HDD 1&2 with partitions C: E: F: G: H: I: J:
HDD 3&4 (mirror of partitions C: E: F: G: H: I: J:)

We're trying to successfully backup all 7 partitions on HDDs 1&2 to an Iomega 35GB Rev Drive.

After checking through the Application event log it seems G: failed and according to the backup log  file it was due to "Error: An inconsistency was encountered in the requested backup file."

The verification passed on C: E: F: failed on G:. Drives H: I: J: didn't get a mention in the log file so I assume the verification process just bombs out completely instead of going onto the next drive.

I've had a look through the Microsoft KB and found nothing specific to my problem.

Any ideas what might be causing the problem?
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Question by:AXOHIT
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Expert Comment

by:Jeffrey Kane - TechSoEasy
ID: 17996785
Have you configured backup using the SBS's Backup Wizard?  If not, please do so.  If you have, then please post the backup log showing this error.

Jeff
TechSoEasy
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Author Comment

by:AXOHIT
ID: 18000262
I used the wizard that is accessible through Server Management. Part of the reason for this was because it was the only way I could trick the backup into using the REV drive as a backup destination (by editing HKLM\Software\Microsoft\SmallBusinessServer\Backup\ and the Backup Location Key).

As for the error in the backup log:

Verify of "G:"
Backup set #4 on media #1
Backup description: "SBS Backup created on 22/11/2006 at 6:53 PM"
Verify started on 22/11/2006 at 8:42 PM.

Error: An inconsistency was encountered in the requested backup file.
Verify completed on 22/11/2006 at 8:44 PM.
Directories: 1258
Files: 12017
Different: 0
Bytes: 1,101,428,984
Time:  1 minute and  54 seconds

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

=======================<END NTBACKUP LOG FILE>=====================
NTBackup finished the backup with errors.

For more information about failed backups, see the article on troubleshooting your backup at the following Web page: http://go.microsoft.com/fwlink/?LinkId=18414

Backup ended at Wednesday, 22 November 2006 8:44 PM
Backup Runner finished.
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by:Jeffrey Kane - TechSoEasy
ID: 18000408
What is on the G: partition?

Also... why do you have so many partitions?  Just curious.

Jeff
TechSoEasy
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Author Comment

by:AXOHIT
ID: 18000578
"What is on the G: partition?". Around 4.4GB of Microsoft Office documents and a few pdfs.

As for having so many partitions. According to the guy who originally set up the server, "it makes it easier to manage". Guess he means from managing file shares and so forth.

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by:Jeffrey Kane - TechSoEasy
ID: 18000929
I've set up plenty of SBS's and can't even conceive of what I'd put on seven different partitions.  Generally three is sufficient, and sometimes four -- at the most.
I'd be curious to know what shares you have stored on each partition. (I'm not sure if this has anything to do with your problem... but it certainly might)

There must be something else on the G: drive that's causing the inconsistency.  Do you have a paging file on this drive?  Or perhaps for some reason the System Volume Information folder or other system file that isn't excluded from the backup?

Jeff
TechSoEasy
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Author Comment

by:AXOHIT
ID: 18001184
Heh if I'd had some say in it (only started at my current place of employment a month or two ago) there certainly wouldn't have been 7 partitions. Next time...

The only paging file exists on C: drive.

The only obvious system files on G: are; "System Volume Information", "RECYCLER" and "__IOM_DEVLIB__.__ATTRIBUTES__" file.

Just occurred to me the that the IOM file is probably some sort of Iomega REV drive file since we previously had the Iomega Automatic Backup Pro software on there. Problem with using that software was that it kept on tripping up on filepath names that were greater than 255 chars.

Apart from the three files/folders mentioned above everything else (afaik) are just data files.

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Expert Comment

by:Jeffrey Kane - TechSoEasy
ID: 18001337
Well, you should certainly delete the IOM file and make sure that system volume information and recycle bins are excluded from the backup.

However... I am suspecting that it's the REV drive, since those cause problems when you don't use an Iomega approved backup program (such as ArcStore).

So... to test this, please create a share on a workstation that is mapped on your SBS.  The Share Permissions MUST allow for Administrators, Backup Operators and SYSTEM to have FULL CONTROL.  The Security settings should be set the same.

Then rerun the Configure Backup wizard and set the backup location to your new share.

If this runs without error, then we know it's the REV drive, and you can then decide if it's worth keeping that.  

For my clients, we use a rotation of USB hard drives for backup... those work quite well and are very affordable.

Jeff
TechSoEasy
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Author Comment

by:AXOHIT
ID: 18001575
Pointing the backup to a HDD was going to be the next step for me as well. Always found iomega equipment to be more fiddly than it was worth ;)
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Jeffrey Kane - TechSoEasy earned 50 total points
ID: 18002765
Yeah... the only way I've seen a REV drive work well on an SBS is using it with their packaged ArcServe solution (http://snipurl.com/133ss)

Otherwise you're fighting against their screwey volume formatting.

The other option with REVs is to use FireStreamer instead of the registry hack... FireStreamer will recognize a REV as a tape drive, making it much easier to use.  See http://www.cristalink.com/Default.aspx for info on that if you're interested.

Good Luck!

Jeff
TechSoEasy
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Author Comment

by:AXOHIT
ID: 18170127
Oop. Got sidetracked with other work happening and completely forgot to come back and close this.

Few things I tried:
1/ We could use NTbackup to backup successfully to a USB HDD.
2/ Downloaded a trial version of Arcserve and successfully backed up to the REV.

We're currently trialling out Backup Exec 11.

Thanks for the help techsoeasy - pts to you.
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Expert Comment

by:Jeffrey Kane - TechSoEasy
ID: 18170258
I only use USB Hard Disk Drives for my clients... with the 120GB 2.5" drives coming down to a reasonable cost, those seem to work quite well, with 3 or 4 in rotation.

Jeff
TechSoEasy
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