Date: July 2007
NV Version: 7.4.5 release 206 (update 4)
OS Version: Windows 2003
Application version:
Plugin version:Filesystem 7.0
Description: How to resolve a windows 2003 filesystem backup failure after a Netvault upgrade to 7.4.5 update 4.
Symptoms: After upgrading a Windows 2003 server to Netvault 7.4.5 update 4, or upgrading the Filesystem plugin to 7.0, the filesystem backup of this server fails.
Binary log dump shows:
Job Message 2007/07/11 08:43:43 120 Data Plugin win2003 File System 7.0.33 Backup
Information 2007/07/11 08:43:43 120 Data Plugin win2003 Current host : Windows 5.2 (build 3790), service pack 2.0
Information 2007/07/11 08:43:43 120 Data Plugin win2003 Current host : Terminal Services is installed
Information 2007/07/11 08:43:43 120 Data Plugin win2003 Current host : The system is a domain controller
Error 2007/07/11 08:44:01 120 Jobs netvault Child Process died unexpectedly
Error 2007/07/11 08:44:03 120 Jobs netvault Job Status: Backup Failed
In filesystem trace we see the job failing on the FilesNotToBackup registry key:
HKLM\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup
FSUEXCLD 1 3 0 74813 Process 'f-6865-4831-823f-2b4817fd4bca}ALT'
FSUEXCLD 0 44 0 74813 Found FilesNotToBackup entry 'f-6865-4831-823f-2b4817fd4bca}ALT'
There is a simple workaround from Microsoft for this fault
From: http://support.microsoft.com/kb/927389/en-us
SYMPTOMS
The backup program may fail or may incorrectly include some Digital Rights Management (DRM) protected files that should be excluded from the backup.
CAUSE
During setup, some files that are distributed with Microsoft Windows Media Player add a value to the following registry location:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\BackupRestore\FilesNotToBackup\DRM
When the value is added to the FilesNotToBackup list, the data under the FilesNotToBackup\DRM registry key is not correctly terminated by using a double NULL character. This behaviour may cause certain backup programs that enumerate this registry key to fail or to incorrectly include some DRM protected files.
WORKAROUND
To work around this problem, your backup program should make an exception to accept a single NULL character as a termination character for the data under this registry key
MORE INFORMATION
This problem may occur when you upgrade to Windows Media Player 11. Windows Media Player 11 does not set or use this registry key. However, when you upgrade to Windows Media Player 11 from Windows Media Player 10 or from Windows Media Player 9, the registry key is not removed. If the problem occurs when you upgrade to Windows Media Player 11, use the workaround or manually delete the DRM registry value in the FilesNotToBackup key.
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