How to troubleshoot Event ID: 8193

Question

Error - Volume Shadow Copy Service error: Unexpected error calling routine IOCTL_DISK_SET_SNAPSHOT_INFO(\.\PHYSICALDRIVE0) fails with winerror 1168. hr = 0x80070490, Element not found.

Restarted VSS services, after restarting related services the only service that is failing is NTDS Writer, but when attempting to run a screenshot from vCenter the writers fail again and the same error in event viewer occurs. This is on a Windows Server 2016 VM.

Answer 1

Event ID 8193 is related to Volume Shadow Copy Service (VSS) errors. The error message indicates that there is an issue with the IOCTL_DISK_SET_SNAPSHOT_INFO function call, which is used by VSS to create a snapshot of the volume.

To troubleshoot this issue, you can try the following steps:

1. Check if the Volume Shadow Copy service is running. You can do this by opening the Services console (services.msc) and looking for the Volume Shadow Copy service. If it is not running, start it.
2. Check if the VSS writers are in a stable state. You can do this by running the command "vssadmin list writers" in an elevated command prompt. Look for any writers that are in a failed or unstable state. If you find any, try restarting the associated services or rebooting the server.
3. Check if there are any disk errors. You can do this by running the command "chkdsk /f" on the affected volume(s). This will check for and repair any file system errors.
4. Check if there are any hardware issues. You can do this by running hardware diagnostics on the server.

Also refer to the following links

VSS event 8193 when you restart the Cryptographic Services service after you install the DHCP role - Windows Server | Microsoft Learn

Event ID 8193 when you perform a backup - Windows Server | Microsoft Learn