VmWare vSphere host disconnected from vCenter
Yes, sometimes an host in your infrastructure get disconnected unexpectedly.
For me, a message from VC informed me that an host get disconnected. I checked somethin and all things were ok, but it diddn’t respond to ping or actions by VSphere client on VC.
I’ve been connected to the single host and restored the connection adding it to the infrastructure by vSphere client(after disabling HA and removed the host from VC).
Here some other solutions:
http://malaysiavm.com/blog/resolution-esx-hosts-unexpected-disconnected-from-virtual-center-esx-35-update-2/
http://www.rayheffer.com/266/how-to-fix-not-responding-error-with-vmware-esx-in-vcenter/
