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What happens to powered off VMs when a host fails?

Duncan Epping · Nov 11, 2011 ·

I had the question today what happens to a powered off VM when the host they are registered against fails? This customer always has multiple powered off VMs and was afraid their VMs would show up as orphaned. I was pretty confident that the VM would be re-registered against one of the remaining hosts in the cluster, but I validated it just in case and this is what the events section of the VM shows:

Relocating from cs-tkmt-h08, emc-vnx-fcoe to cs-tkmt-h05, emc-vnx-fcoe

In other words, the VM is relocated from my ESXi host cs-tkmt-h08 to cs-tkmt-h05. No need to worry about orphaned VMs and manually registering them against the remaining hosts… vSphere does it for you.

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BC-DR, Server, Various 5, 5.0, ha, vSphere

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Comments

  1. Martin says

    12 November, 2011 at 15:25

    Is this tested on vSphere 4 or 5 and does it remain true on the other 4 or 5?

    • Duncan Epping says

      12 November, 2011 at 17:52

      Tested it on 5, but I am sure the same applies to 4.1.

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About the author

Duncan Epping is a Chief Technologist in the Office of CTO of the Cloud Platform BU at VMware. He is a VCDX (# 007) and the author of the "vSAN Deep Dive" and the “vSphere Clustering Technical Deep Dive” series.

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