Error when vMotion from ESXi 5.1 to 5.5 Update 3b


Error when vMotion from ESXi 5.1 to 5.5 Update 3b

I was recently tasks with moving an ESXi cluster from ESXi 5.1 to ESXi 5.5.

I decided to move to the latest update release which was ESXi 5.5 Update 3b (build – 3248547). vCenter had already been upgraded to version 5.5. Your vCenter server version must not be lower than your ESXi hosts to be able to manage the hosts successfully. So you will need at least vCenter 5.5 Update 3b.

I started to put hosts into maintenance mode and perform an upgrade of ESXi via Update Manager. Several hosts were upgraded successfully with only a few remaining on ESXi 5.1. However I was not able to evacuate these hosts while keeping the VMs powered on as I was getting the below vMotion error.

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Updating ESXi Hosts using Update Manager


Updating ESXi hosts using Update Manager

You may be aware of the recent WannaCry ransomware attack. I mean who wasn’t, right? Internally within our company this caused a bit of a stir around patching and making sure our environment is up to date. Something that is overlooked by a lot of support staff but can be devastating if not kept up to date. At a recent VMUG I attended Michael Armstrong (@m80arm) from VMware was given a presentation on NSX security and asked for a show of hands if anyone’s environment is 100% patched. The result… no hands from 50 attendees! Quite alarming. So let’s go through patching our ESXi hosts using update manager.

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