NetWorker: Backup Failing with "VSS failed to process snapshot: Insufficient storage available"

Riepilogo: NetWorker Backup of a Microsoft Windows client is failing with Volume Shadow copy Service (VSS) errors. The VSS error reported is "Insufficient storage available to create either the shadow copy storage file or other shadow copy data." ...

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Sintomi

Microsoft Windows backups fail with the following error:

VSS OTHER: ERROR: VSS failed to process snapshot: Insufficient storage available to create either the shadow copy storage file or other shadow copy data. (VSS error 0x8004231f)
90108:save: Unable to save the SYSTEM STATE save sets: cannot create the snapshot.

Causa

This is not a NetWorker error. Microsoft recommends ~20% of the total disk size to be available for VSS to work.

Risoluzione

Ensure that adequate disk space is available on the client.

This issue can be replicated without NetWorker by running the following commands on the client:

vssadmin list writers 


Your VSS writers should all be listed with "No Error" and "Stable" 
If the above completes successfully, run the following command:

vssadmin create shadow /For=Driver_Letter


If a snapshot is successfully created, you see:

C:\Windows\system32>vssadmin create shadow /For=C:
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2012 Microsoft Corp.

Successfully created shadow copy for 'C:\'
    Shadow Copy ID: {22fe2729-9155-443e-8aec-098d8810c01a}
    Shadow Copy Volume Name: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy19

If the clients VSS writers are reporting errors or you are not able to create a snapshot using the Windows command, contact Microsoft Support for assistance.

Informazioni aggiuntive

VSS Space Requirements: https://technet.microsoft.com/en-us/library/cc161409.aspx This hyperlink is taking you to a website outside of Dell Technologies.
VSS Information: https://msdn.microsoft.com/en-us/library/windows/desktop/aa384625(v=vs.85).aspx This hyperlink is taking you to a website outside of Dell Technologies.

 

NetWorker: Troubleshooting Backup Failures Due to VSS Issues

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Proprietà dell'articolo
Numero articolo: 000031427
Tipo di articolo: Solution
Ultima modifica: 20 giu 2025
Versione:  4
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