com.vmware.vc.HA.HostUnconfigureError
Summary
Error unconfiguring HA agent on host.
Causes
There is an issue with the configuration of vSphere High Availability protection for this host. Review the event description for detail on the cause.
Resolutions
Connect the host to a vCenter Server 5.0 or later.
See VMware online documents such as Troubleshooting VMware High Availability and the vSphere Troubleshooting Guide to resolve HA issues.
External
Refer to the online vSphere Availability Guide for further guidance.