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Question
Sunday, October 27, 2019 6:45 AM
Hi IT Experts,
Since one week, backup in one of our servers shows "A Volume shadow copy service operation failed" and Bare Metal Recovery and System State failed, resulting no backup is happening, for testing purpose i manually enabled the VSS service to Automatic also checked the destination folder has enough space but no luck.
Further more, I check the Disk mgmt and found "System Reserved"" partition doesn't shows System but only Active & Primary, attached snapshot shows the current Disk Mgmt for your advice.
Appreciate your support
TIA
Maz
All replies (5)
Sunday, October 27, 2019 10:04 AM ✅Answered
Find the failed VSS writers and their associated services, and restart them:
1. Click the Start button then type CMD. When the command prompt icon appears, right-click it and select Run as Administrator.
2. Type vssadmin list writers to find each of the VSS writers in a failed state. If the command hangs and does not return any output, this suggests the Volume Shadow Copy service or one of its dependent tasks might be in a bad state, causing the VSS writer audit to fail.
3. Restart the service to clear the failed state. If the service will not restart, reboot the production machine.
4. Make a list or take a screenshot of all failed VSS writers.
5. Find the VSS writer's associated Service Display Name in the table below and restart the service.
6. Open services.msc and stop any VSS related services that are running.
7. Re-run the command vssadmin list writers in an administrative command prompt to confirm the state has changed to Stable with no errors.
7. Try another backup. If the VSS writers fail again, you must reboot the machine.
| VSS Writer | Service Name | Service Display Name |
| ADAM $instanceName Writer | ADAM_$instanceName | $instanceName |
| ASR Writer | VSS | Volume Shadow Copy |
| BITS Writer | BITS | Background Intelligent Transfer Service |
| Certificate Authority | CertSvc | Active Directory Certificate Services |
| COM+ REGDB Writer | VSS | Volume Shadow Copy |
| DFS Replication service writer | DFSR | DFS Replication |
| DHCP Jet Writer | DHCPServer | DHCP Server |
| FRS Writer | NtFrs | File Replication |
| FSRM writer | srmsvc | File Server Resource Manager |
| IIS Config Writer | AppHostSvc | Application Host Helper Service |
| IIS Metabase Writer | IISADMIN | IIS Admin Service |
| Microsoft Exchange Replica Writer | MSExchangeRepl | Microsoft Exchange Replication Service |
| Microsoft Exchange Writer | MSExchangeIS | Microsoft Exchange Information Store |
| Microsoft Hyper-V VSS Writer | vmms | Hyper-V Virtual Machine Management |
| MSMQ Writer (MSMQ) | MSMQ | Message Queuing |
| MSSearch Service Writer | WSearch | Windows Search |
| NPS VSS Writer | EventSystem | COM+ Event System |
| NTDS | NTDS | Active Directory Domain Services |
| OSearch VSS Writer | OSearch | Office SharePoint Server Search |
| OSearch44 VSS Writer | OSearch44 | SharePoint Server Search 14 |
| OSearch45 VSS Writer | OSearch45 | SharePoint Server Search 15 |
| Registry Writer | VSS | Volume Shadow Copy |
| Shadow Copy Optimization Writer | VSS | Volume Shadow Copy |
| SharePoint Services Writer | SPWriter | Windows SharePoint Services VSS Writer |
| SMS Writer | SMS_SITE_VSS_WRITER | SMS_SITE_VSS_WRITER |
| SPSearch VSS Writer | SPSearch | Windows SharePoint Services Search |
| SPSearch4 VSS Writer | SPSearch4 | SharePoint Foundation Search V4 |
| SqlServerWriter | SQLWriter | SQL Server VSS Writer |
| System Writer | CryptSvc | Cryptographic Services |
| TermServLicensing | TermServLicensing | Remote Desktop Licensing |
| WDS VSS Writer | WDSServer | Windows Deployment Services Server |
| WIDWriter | WIDWriter | Windows Internal Database VSS Writer |
| WINS Jet Writer | WINS | Windows Internet Name Service (WINS) |
| Windows Server Storage VSS Writer | WseStorageSvc | Windows Server Essentials Storage Service |
| WMI Writer | Winmgmt | Windows Management Instrumentation |
Monday, October 28, 2019 2:27 AM
Hi,
Besides above suggestions, please check if there is any error message in Event Viewer.
Try to uninstall all the AV softwares and try again.
Best Regards,
Daniel
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Tuesday, October 29, 2019 5:30 AM
Hi,
Yes, one of SQL VSS writer service stop and restart then reboot the server and working like charm.
Thank you for your support
Tuesday, October 29, 2019 5:40 AM
Thanks for your sharing!
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Wednesday, October 30, 2019 5:57 AM
Hi Udara Kaushalya,
As said, your suggestion works and successfully backed up but today found the same SQL Server Writer failed - Inconsistent Shadow copy.
Probably, if I redo as suggested would work like stop the services reboot the server then backup but this is not permanent solution,
Kindly advice.