So, after a major hiccup that left 6 out of my 7 member-vmware-esx-cluster disconnected from the main datastore, thus causing them to be kicked out of the cluster, I found out that after I managed to salvage the nodes, I can’t re-enable HA. The “Reconfigure for VM HA” command -which strangely is placed right under “remove”- return this error:
“Unable to contact a primary HA agent”
The “vmkping” showed that vm-kernel network are working between the nodes, and everything else seems to be fine. I even restarted the VCenter server just to make sure.
What you need to do is to disable VM HA from cluster level, and re-enable them again. To do that, right click on the cluster, and select “edit settings”. Uncheck the “Turn On VMWare HA”, and press OK.
![VM HA option](https://i0.wp.com/mach5.web.id/wp-content/uploads/2012/12/vmha.png?resize=341%2C280&ssl=1)
Observe the progress bar of each nodes, and wait for all of them to finish the process. After that, right click on the cluster, select “edit settings” again, and re-check the “Turn On VMWare HA” box, then press “OK”. After all nodes finished the reconfiguration process, you should have your HA back.