VSS writer Error 12293

Question

Hi

I recently got an issue with VSS writer on my server 2012R2 and now i am unable to backup my VM's
vssadmin list writers

no errors in list

Below Log with issue:

ID 8193:
Volume Shadow Copy Service error: Unexpected error calling routine GetVolumeNameForVolumeMountPoint is now failing on the volume, winerror 0x00000001. . hr = 0x80070001, Incorrect function.
.

ID 12293
Volume Shadow Copy Service error: Error calling a routine on a Shadow Copy Provider {89300202-3cec-4981-9171-19f59559e0f2}. Routine details Error calling Query(). [0x80070006] [hr = 0x80070006, The handle is invalid.
].

Operation:
Query Shadow Copies

Context:
Execution Context: Coordinator

How should i fix this ?

Answer 1

Hello WiktorKostrzewski,

In this case it would be recommended to run the next command as Administrator in the virtual machine's host

vssadmin list providers
vssadmin list shadow

Reference: https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc734302(v=ws.10)?redirectedfrom=MSDN#make-sure-that-vss-hardware-providers-are-operating-properly

Additionally, you can try to install the next update specifically for Windows Server 2012R2:
"Hyper-V integration components update for Windows virtual machines"
https://support.microsoft.com/en-us/topic/hyper-v-integration-components-update-for-windows-virtual-machines-8a74ffad-576e-d5a0-5a2f-d6fb2594f990

And last but not least, please check if the Virtual Machine has enabled the "Backup (volume checkpoint)" integration service, with the next steps:

1. in Hyper-V right click the virtual machine, and select Settings
2. Go to the Integration Services option from the left menu
3. Ensure that the Backup option is marked

--------------------------------------------------------------------------------------------------------------------------------------

--If the reply is helpful, please Upvote and Accept as answer--

Answer 2

Hi
I did below command and i got results:

Also i checked the VM's all have backup checked

Are you sure this update is required ?

Will this require server restart ?