VSS Shadow Copy Creation and Storage Space Availability

Updated: January 27, 2011

Applies To: Windows Server 2008 R2

A shadow copy is a snapshot of a volume that duplicates all of the data that is held on that volume at one well-defined instant in time.

Events

Event ID Source Message

22

VSS

Volume Shadow Copy Service error: A critical component required by the Volume Shadow Copy service is not registered. This might happened if an error occurred during Windows setup or during installation of a Shadow Copy provider. The error returned from CoCreateInstance on class with CLSID %1 and Name %2 is [%3]. %4

4001

VSS

Volume Shadow Copy Service error: Cannot find diff areas for creating shadow copies. Please add at least one NTFS drive to the system with enough free space. The free space needed is at least 300 Mb for each volume to be shadow copied.

12297

VSS

Volume Shadow Copy Service error: The I/O writes cannot be flushed during the shadow copy creation period on volume %1. The volume index in the shadow copy set is %2. Error details: Open[%3], Flush[%4], Release[%5], OnRun[%6].

12298

VSS

Volume Shadow Copy Service error: The I/O writes cannot be held during the shadow copy creation period on volume %1. The volume index in the shadow copy set is %2. Error details: Open[%3], Flush[%4], Release[%5], OnRun[%6].

Related Management Information

Volume Shadow Copy Service

File Services

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