Saturday, April 9, 2016

Esxi host - Pause Flood Protection - VM's locked.

Good day All,
Welcome back!!!

Today will go over a issue we had couple of days ago on a Esxi host. Just to give a brief on our environment we have a HP C7000 Frame and 6 blades are running Esxi covering about 100 odd Virtual machines. So out of the 6 blade we had about 15 VM's running on a Esxi host and the host went to isolation mode.

During the outage we logged in to ILO and try to reboot the ESXi host to see if this kicks start's the HA feature but no luck as any traffic from the blade was completely blocked or stopped.

As we started to run out of time we went for work ground to fix the issue as during the outage we couldn't identify the root cause.
So following are the steps we performed

1. Disconnected the failed ESXi
2.Took a list of all VM's
3.Power down all the VM's
4. Removed the whole ESXi from cluster and from inventory
5.Browsed the datastore for each VM, add them to inventory and powered on
6, During the boot we choose the option "i moved it"

Note sure when Esxi host was hard rebooted why Datastore heart-beating didn't kick start HA and move the VM's that still we are investigating.

Hope this helps someone and until next one you all have a good day!!!


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