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Windows SBS 2008: Windows Backup fails

Posted on 2011-09-29
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Last Modified: 2012-05-12
Windows SBS 2008 backup is failing. The server currently uses three different external drives for a backup rotation.  All three are WD. Two are USB powered and the other is AC powered.  The backup was working at one point.  

I have different error messages and its difficult to figure out which one is the issue.  It looks like the backup maybe starting but not finishing. One of the data points that we backup is our G:\ drive.  It is an external drive on the SBS server.  We had to replace it and when we mounted a new drive letter to it.  It used to be H:\,  We reconfigured the backup schedule ot point to G:\.  But it looks like it still wants to try and find the old drive letter.  It shows a registry key as its path.  When  I search the registry it has a key that reference H:\.  

I have attached a variety of screenshots and logs for your review. I'm not sure what to do.  

Thanks


 wiz 1 wiz 2 backup sched disk mgmt event last 1 last 2 last 3 last 4 last 5
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Question by:mattmcglone
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8 Comments
 
LVL 12

Expert Comment

by:marcustech
ID: 36891368
Have you tried deleting the backup config entirely (by clicking the "Disable Backup" link in Small Business Server Console) and re-creating the backup task/schedule from scratch? This will potentially purge any corrupted registry config settings.
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Author Comment

by:mattmcglone
ID: 36892345
I have not tried that.  I thought disabling would do just that and not delete it.  I will try this.
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Author Comment

by:mattmcglone
ID: 36892724
marcus - I went through to configure the backup again and I have a couple of questions.  It says that it will format all of my (3) external drives.  that will leave me without a backup. Is there a way around that?  I was able to select an external drive as part of the backup but now it is not listed.  That external data drive was always part of the backup in the past. It is connected and is mounted (G:\).  And last, do i have to have all three backup drives that I plan to use connected to the server when I configure the backup?  

Thanks
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LVL 12

Accepted Solution

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marcustech earned 500 total points
ID: 36893161
Hi mattmcglone,

You can run the wizard, select the items to back up and just add 1 disk to the backup destination pool for testing.  This leaves you two disks of current backups.  Then you can add these once you have confirmed that the job is working.

If you run diskpart list disk, or wbadmin list disk, does your external (G:) drive showup?
You can try to add the drive to the backup using
wbadmin enable backup -include:g:

Open in new window



Lastly, regarding needing to connect all the drives to configure the backup, you do using the snap-in or the wizard, not using wbadmin.  It's a bit of a bug, see here for full details.  You can add or remove backup targets and sources to the job at any time using the wizard, wbadmin or the windows server backup snap-in.
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LVL 12

Expert Comment

by:marcustech
ID: 36893198
Hang on, I'm being slow here.  If your current backup is still configured and is failing because it can't find \\?\Volume-{3dc50cf2-b7e8-11e0-81a6-0026b93fea25}\, then you should just be able to run:
wbadmin enable backup -exclude:\\?\Volume-{3dc50cf2-b7e8-11e0-81a6-0026b93fea25}\

Open in new window

This will leave all your current backup settings intact, but remove the reference to the phantom volume.

Otherwise you can try my previous suggestions, however the command there is wrong, you would need:
wbadmin enable backup -include:c:,d:,e:,g:

Open in new window

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Author Comment

by:mattmcglone
ID: 36893275
I'm sorry but I'm a little confused.  Which should I run?  

wbadmin enable backup -include:c:,d:,e:,g:

or

wbadmin enable backup -exclude:\\?\Volume-{3dc50cf2-b7e8-11e0-81a6-00

or

wbadmin enable backup -include:g:

Thanks

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LVL 12

Expert Comment

by:marcustech
ID: 36893421
Sorry, that's my fault for prevaricating.

Run the 'exclude' command, then attempt to run a backup using the 'backup now' button on the SBS console.  Let me know how it goes.
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LVL 12

Expert Comment

by:marcustech
ID: 36893427
Let me know how it goes.
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