Hyper-V CBT Driver

coliver

I've been getting an alert from Unitrends that the Hyper-V CBT Driver is not installed. The backups are still working but are finishing with a warning.

Has anyone else encountered this issue? Do I need to re-install the agent on the Hyper-V host?

@coliver said:

Has anyone else encountered this issue? Do I need to re-install the agent on the Hyper-V host?

Likely; CBT is not a feature of hyper-v like it is with VADP in VMware, so reinstalling the agent would be the only option.

coliver

If anyone is curious or runs into this issue Unitrends has a KB article on it (https://unitrends-support.force.com/UnitrendsBackup/s/article/000003653).

Basically you navigate to the C:\PCBP\Win2012.dir directory on the Hyper-V host and run install.bat. I will let you know if that fixes it after an update runs tonight.

coliver

That did fix it. Updates are now happening with out a warning.