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SBS 2003R2 Failed Backup

Posted on 2007-11-21
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Last Modified: 2010-04-19
Every attempt I make to run a full backup of my SBS server it fails, I receive the following:
11/21/2007 1:00 AM
-------------------------------
Date: 11/21/2007
Time: 1:00 AM
User: SYSTEM
-------------------------------
Backup Runner started.
Launching NTBackup: ntbackup.exe backup "@C:\Program Files\Microsoft Windows Small Business Server\Backup\Small Business Backup Script.bks" /d "SBS Backup created on 11/21/2007 at 1:00 AM" /v:yes /r:no /rs:no /hc:off /m normal /j "Small Business Server Backup Job" /l:s /f "\\Bigsky1\sbs-backups\Backup Files\Backup Files\Small Business Server Backup (01).bkf" /UM
NTBACKUP LOG FILE: C:\Documents and Settings\SBS Backup User\Local Settings\Application Data\Microsoft\Windows NT\NTBackup\data\backup09.log
=====================<BEGIN NTBACKUP LOG FILE>=====================
Backup Status
Operation: Backup
Active backup destination: File
Media name: "Small Business Server Backup (01).bkf created 11/21/2007 at 1:00 AM"
Volume shadow copy creation: Attempt 1.
Backup (via shadow copy) of "C: "
Backup set #1 on media #1
Backup description: "SBS Backup created on 11/21/2007 at 1:00 AM"
Media name: "Small Business Server Backup (01).bkf created 11/21/2007 at 1:00 AM"
Backup Type: Normal
Backup started on 11/21/2007 at 1:01 AM.
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 11/21/2007 at 1:07 AM.
Directories: 533
Files: 3786
Bytes: 1,362,079,151
Time:  5 minutes and  19 seconds

Error: C: is not a valid drive, or you do not have access.
The operation was ended.
Backup completed on 11/21/2007 at 1:07 AM.
Directories: 533
Files: 3786
Bytes: 1,362,079,151
Time:  5 minutes and  20 seconds
----------------------
The operation did not successfully complete.

----------------------
=======================<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, November 21, 2007 1:07 AM
Backup Runner finished.
Anyone have any ideas why this is happening?
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Question by:MatthewsTDA
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by:dan_blagut
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Hi
It looks like you can't write on C drive. That can be related to lack of permission for the user  selected to run backup.
So you can:
1 verify that for selected user credential you can write on specified backup directory
2 instruct the backup to save on other partition with paropriate acces rigth.

Dan
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by:MatthewsTDA
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Ok... But my backup is configured for a networked drive, why would I get an error about the C drive? and what users and permissions are needed on C?
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dan_blagut earned 500 total points
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Then here can be the problem.
If you search on other reponses to questions you will see that backup on network share is not a good ideea. You can try to do that by using mapped share resource, but this is a little bit slow. Anyway a better solution is to backup your server locally, then to move that file on network share.
So in the first stage you can try using the drive x, mapped for your backup destination. If you can't then try to use the backup to secondary partition and schedule an script that move your file to second computer.

Dan
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by:dan_blagut
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The account used for SBS is SBS Backup User, that is normally disabled. This account is automatically enabled by SBS backup at the moment of backup, then ,after the backup process, is disabled. Usually the account is member of domain admins so it has enough rigths.

Dan
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by:MatthewsTDA
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I reconfigured the backup to a local drive and I'm running it now, so far every thing seems to be working. How do I get a script that can move the backup files after the backup completes every night to my networked drive? I have very little space left on my server and the backup has to be moved ASAP when it's done.
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by:dan_blagut
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You can implement a bat like

net use x: \\server_name\share
copy local_path\backup.bkp x:\backup_storage
delete local_path\backup.bkp
net use x: /delete

You save that file with .bat extension, then you use task schedule and put the bat to be run at 30 min after the backup is finished.
And let me gues... you don't have backup for exchange....

Dan
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by:MatthewsTDA
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Ok I will try this.... I do have a backup for exchange I have been able to get that to run on the networked drive without a problem.. that was what was confusing me on the full backup using the SBS wizzard.
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