The Enterprise Server Edition Backup Client appears to be unresponsive with no data being transmitted, and the service.log contains the following repeating message:
"VssAsync - Waiting for async VSS process called"
The Backup Client is not receiving a response from the Visual Shadow Copy Service.
The appropriate response would be for the backup to fail but due to a 20 minute timeout, the backup doesn't fail within an acceptable timeframe.
Reduce the timeout to the recommended value of 10 minutes below by adding the following key in the Windows registry:
- Run regedit.exe and navigate to "HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionSPP"
- Create a new Registry value of type DWORD with name "CreateTimeout"
- Change value to 6000000(10*60*1000 = 10 mins) in decimal
If the setting in the registry does not exist, then the default of 20 minutes will apply.
Note: This key has been added automatically in v17.10.