Although orphaned VM’s are no fun usually, I am having some fun with them right now. I had an HA issue that caused 300+ VM’s to be moved to one host. Then somehow they all became orphaned. The host doesn’t think it has any of them. vCenter thinks they are there though. After a quick cry and a cup of coffee, I have tried restarting the management agents and vCenter. Migrating the orphaned vm’s to another host is working for many of them. So I had the bright idea of putting the questionable host in maintenance mode and leaving the box checked to evacuate all powered off vm’s and templates. This is working great. However at about 114 left the host popped into maintenance mode completely and left vm’s on there. So I exited maintenance mode and entered again. Now it is at 108 and 107 and bouncing back and forth. How odd….