Today a customer contacted me with a system consisting of 3 hosts running a VMware ESXi 5.0 cluster.

They were experiencing one, and only one VM, was complaining about configuration issues:

This virtual machine failed to become vSphere HA protected and HA may not attempt to restart it after a failure.

The customer had already tried to power down the VM and power on again, but unfortunately this had made no difference.

I disabled vSphere HA on the cluster:

After vSphere HA was deactivated on all hosts I simply went in and re-enabled vSphere HA on the cluster.

It took a few minutes for all the hosts to complete the tasks, but the VM was now finally protected:

As always, if this helped you please leave a comment

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