Volume Shadow Copy Service: Cannot find Diff Area for creating shadow copies.

Details
Product: Windows Operating System
Event ID: 4001
Source: VSS
Version: 5.2.3790.1830
Message: Volume Shadow Copy Service: Cannot find Diff Area for creating shadow copies.
   
Explanation

To maintain shadow copies, Volume Shadow Copy Service must perform the copy-on-write operation to a shadow copy storage area (also referred to as a Diff Area). If Volume Shadow Copy Service cannot find a suitable volume for storing this area or if it encounters problems in writing to this area, then shadow copies for the volume will be deleted. To successfully create a shadow copy, at least one NTFS volume is required with at least 300 megabytes (MB) of free space.

Cause

Possible causes include:

  • An issue is preventing Volume Shadow Copy Service from finding or writing to a suitable volume for the Diff Area.
   
User Action

Do one of the following:

  • Reduce the system or I/O load and retry the operation.
  • Check the Diff Area association and configuration.
  • Check the volume where the Diff Area is stored for errors or hardware issues.
  • Do not store the Diff Area on any kind of storage device that can be easily removed from the system.
  • Do not store the Diff Area on any kind of storage device that may not be available to Windows until late in the system startup sequence. For example, a LUN created on an Internet SCSI (iSCSI) storage subsystem may not appear until a software initiator has started.

Related:

Leave a Reply