Document ID: 312171
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Volume level backups of Windows 2003 servers using Advanced Open File Option and Volume Snapshot Provider (VSP) complete with an exception "The volume cannot be snapped using Advanced Open File Option (AOFO) because it is not a drive that is permanently attached to the target computer".
Exact Error Message
(0xE0008538): The volume cannot be snapped using Advanced Open File Option (AOFO) because it is not a drive that is permanently attached to the target computer

Details:
The above mentioned exception occurs when running a volume level backup of  server using Advanced Open File Option, which has Microsoft Virtual Server (MSVS) 2005, R2 Edition installed on it.

Cause: The issue is caused by orphan mount points in C:\temp or C:\Windows\temp directory and normally happens during backup of Microsoft Virtual Server 2005 R2 SP1 guests through Shadow Copy Components -- User Data
E.g.-"C:\WINDOWS\TEMP\{0BF98E81-25D0-11DD-BF6B-001422510EF2}"
During this Shadow Copy Component backup Microsoft Virtual Server's vhdmounter.exe or Symantec VSP encounters a problem which results in a mount point being left behind.
An attempt to run a backup of  a volume having such an orphan mount point, using Volume Snapshot Provider results in the above mentioned exception.

Workaround: To resolve this issue follow either of the steps below:
1. Delete the orphan mount point from the disk .
Example : "C:\WINDOWS\TEMP\{0BF98E81-25D0-11DD-BF6B-001422510EF2}"
Apply the latest Microsoft VSS updates and Microsoft Virtual Server 2005 R2 SP1 updates.
NOTE: If the orphan mount points continue to reappear after a Microsoft Virtual Server Guest Backup all efforts should be made to resolve the Symantec VSP errors during backup.
Apply the latest Microsoft VSS updates and Microsoft Virtual Server 2005 R2 SP1 updates.
OR
2. Perform snapshot backups of the volume using Microsoft VSS










Supplemental Material:

System: Ref.#Description
ETrack: 1271634 AOFO: MSVS: VSP Non-Fixed Drive Error During Snapshot Creation

Products Applied:
 Backup Exec for Windows Servers 12.0, 12.0 SP1, 12.0 SP2
Last Updated: June 22 2009 01:21 PM GMT
Expires on: 06-22-2010
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Subjects:
 Backup Exec for Windows Servers
   Open File Option: Troubleshoot

Languages:
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Operating Systems:
Windows Server 2003

Enterprise Server, Standard Server