FreeBSD shutting down unexpectedly

[Yuri Lukin]

Jin Guojun [VFFS] wrote ..
> Gary Corcoran wrote:
> > You may have a failing, or underpowered, power supply, which could cause
> > flakiness when you have large amounts of CPU and/or disk activity.
> 
> It sound like a power related issue. Another thing to try is to remove
> the UPS,
> even though you think it is OK.
> 5 years ago, we bought 25 APC and more than 7 had some problems. Some of
> them turned machine off, while monitor meter did not show losing power.
> APC may have improved their product now, but try to isolate it first.
> If the server still has the same problem, than the power supply may be
> degraded
> (check the fan and temperature).
> Dying hard drive generally will not cause power shuting down.
> 
>     -Jin

Thanks for the suggestions everyone, I will find some time this 
week to bring down the server and thoroughly inspect the hardware. 
It's most likely the power supply failing so I will have to look for a
replacement. I will update the list once I find the culprit. 

-Yuri