Is the system on a UPS backup?
If not then set the bios to not restart on a power failure.
Then if the power fails the server won't restart.
Then you know it was a power glitch.
I get very short power glitches here every day.
18kva UPS goes on line at least once a day.
UPS log shows very short duration glitches < 100ms.
Power here in a word "sucks" thus the UPS to power everything.
Power company has been out here to many times and they are clueless, they say wiring inside, they say tree branches touching lines.
Considering I checked every connection in this place, and monitor power at various points 24/7.
"tree branches touching lines" not likely to be the cause, those types of glitches are well in excess of 1000ms, 1sec
Usually 10-15sec for the reset to occur and are very rare, maybe one a year.
Everyone would be complaining and their not.
Less then 100ms and nobody complains, it's just normal for them, not for me, systems dump.
I say their clueless.
One thing is for sure, 18kva UPS fixes the problem they can't fix.
Doesn't take much of a glitch to dump the Proliant...that I know, have one and 2 HP Netservers.
Power hungry monsters they are, anything longer then 10ms and they dump.
3.6amps running .35a in standby.
They tend to be expensive to feed these days.
I run them in the winter to heat the place, dual purpose, server heaters...!!
3.6amps server heaters...almost break even dollar wise.
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