Backing up a folder on ReFS disk results in VSS snapshot error

What happens when you run the following command in an elevated CMD prompt?

vssadmin list writers

vssadmin list writers

Tommy, thank you for your reply!  I get the following results with no errors:

C:\Users\administrator>vssadmin list writers
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2013 Microsoft Corp.

Writer name: 'Task Scheduler Writer'
   Writer Id: {d61d61c8-d73a-4eee-8cdd-f6f9786b7124}
   Writer Instance Id: {1bddd48e-5052-49db-9b07-b96f96727e6b}
   State: [1] Stable
   Last error: No error

Writer name: 'VSS Metadata Store Writer'
   Writer Id: {75dfb225-e2e4-4d39-9ac9-ffaff65ddf06}
   Writer Instance Id: {088e7a7d-09a8-4cc6-a609-ad90e75ddc93}
   State: [1] Stable
   Last error: No error

Writer name: 'Performance Counters Writer'
   Writer Id: {0bada1de-01a9-4625-8278-69e735f39dd2}
   Writer Instance Id: {f0086dda-9efc-47c5-8eb6-a944c3d09381}
   State: [1] Stable
   Last error: No error

Writer name: 'System Writer'
   Writer Id: {e8132975-6f93-4464-a53e-1050253ae220}
   Writer Instance Id: {dc4a59a6-8d06-4e6a-85a3-366363c32dd4}
   State: [1] Stable
   Last error: No error

Writer name: 'ASR Writer'
   Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}
   Writer Instance Id: {f1300fb1-3fcc-41cf-a3a2-3ae4c6d217f8}
   State: [1] Stable
   Last error: No error

Writer name: 'Dedup Writer'
   Writer Id: {41db4dbf-6046-470e-8ad5-d5081dfb1b70}
   Writer Instance Id: {54e599ad-728f-4c95-8f15-d5b5c5ade8d5}
   State: [1] Stable
   Last error: No error

Writer name: 'Registry Writer'
   Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}
   Writer Instance Id: {f8108b16-0ae0-4756-b15b-fdb04cd21100}
   State: [1] Stable
   Last error: No error

Writer name: 'Shadow Copy Optimization Writer'
   Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}
   Writer Instance Id: {dcea8157-bbd1-45e0-86b4-bd66f5f3bd93}
   State: [1] Stable
   Last error: No error

Writer name: 'COM+ REGDB Writer'
   Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}
   Writer Instance Id: {0bee01d8-8f64-41ab-8d3e-965d86e55b3c}
   State: [1] Stable
   Last error: No error

Writer name: 'WMI Writer'
   Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}
   Writer Instance Id: {3cd59406-8748-4a86-9158-ee87fb7ca3ef}
   State: [1] Stable
   Last error: No error

Thanks!

-s.

​@sul , I found this forum post which shows an error very similar to the one you’re receiving.

In their case, it was Manage Engine Anti-Ransomware functionality that was conflicting with the VSS snapshots.

I’d check to see if you have the same or similar potential conflicting software on your system.

Tommy, thank you for the post reference. The server is pretty bare bones and it does not have third party software like the above  other than the Veeam related apps and Chrome & Edge browsers.  The server is running on Windows Server 2022 Standard.  For endpoint protection, the server uses Windows Security that’s part of Windows.

Thank you!

Hi Chris, thank you for the tip.  I did run vssadmin list writers and there were no errors.  The log did not offer anything useful, unfortunately.  I went ahead and opened up case 07650444 and hoping for a fix.  I use the community version of Veeam B&R, so I am a bit doubtful whether anyone will chime in, but let’s see... Crossing fingers!

thanks!

-s.