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Enthusiast
Enthusiast

If a Host loses connectivity to storage, will HA isolation response be triggered?

Our Hosts may have a single point of failure for storage so, I wanted to understand exactly what would happen if storage connectivity was lost. I have researched this in the past and, at the time, the answer was that HA is not triggered and the VMs on the Hosts are in a strange, powered on, unstable state until manual intervention. I wanted to see if this still holds true or if there have been changes with more recent versions of ESXi.

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Hot Shot
Hot Shot

In case you are running IP based storage, it is highly recommend to configure the isolation response to: power-off and All hosts in the HA cluster must have access and visibility to the same shared storage; otherwise, they would have no access to the VMs.

Let me know if you still have any question

Best regards

Your Oscar

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Enthusiast
Enthusiast

My question is specific to fiber channel storage and I have separately confirmed that this behavior has not changed. A Host disconnected from storage does not alone trigger any isolation response or automatic action. VMs on that Host will still continue to run in memory in a precarious state (disconnected for storage) until manual intervention or until storage connectivty is restored.

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