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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), the author of the "vSAN Deep Dive" and the “vSphere Clustering Technical Deep Dive” series, and he is the host of the "In de aap gelogeerd" (Dutch) and "unexplored territory" (English) podcasts.

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