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VMX connection handshake failed for mks

Today I ran into an interesting error when trying to access one of my VM.

First I could not get into that VM remotely as it appeared as offline. This said, VI showed the VM as healthy and online.

Trying to get to it using the Console from VI showed the following error:

As you can see I was afraid that some of the SAN path were down or some kind of painful problem with the SAN. No, no a quick ssh in showed that the mentioned volumes were online, accessible and all SAN paths were up.

So I do power off and restart the VM: no success. Restart the ESX (after vmotioning all VMs): no success.

Eventually I find that in the settings of the VM, there was  a reference of some floppy image pointing to a volume (not even on the same volume). I changed that option to Client Device and voila everything was back to normal.

Looking that information up on the VMware KB or community forum  doesn't provide any solution.