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Esxi looses config after power outage

We have Esxi installed on a box (maybe 2 years old).   This runs 4 virtual servers.   It is connected to a UPS that has about a 15 min runtime.   If the power is out longer, and when we get power back, the configuration for the Esxi has to be set up again.    Is there something I need to change in settings or why does it do this.
It doesn't happen very often, maybe 3 times in 2 years, but in a recent audit, we were told we should investigate further to see why it happens.
Any suggestions/ideas appreciated.
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bankwest
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bankwest
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1 Solution
 
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
We have seen this on occasions, when the "state.gz" file gets corrupted on the server, I suspect because it does not commit the file, because it's in memory.

It happens, backup the configuration of your ESXi server, or document your ESXi configuration well.
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bankwestAuthor Commented:
I do have good documentation, and can get it back up in about 10 - 15 minutes.

Is there anything else I can do besides just knowing it can happen.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Make backups of the configuration weekly.

Ensure the UPS shuts the host down, in a controlled fashion, rather than just fail.
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