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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Christian Zachariasen <chrizach@gmail.com>
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Cc: FreeBSD Mailing Lists <freebsd-questions@freebsd.org>,
	Colin Brace <cb@lim.nl>
Subject: Re: server (partly) fails: hardware?
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> Can you predict at what point the server will crash? Is it after performing
> a specific action, or at a certain time of day?

i think it's quite inpredictable, with probability proportional to disk 
load.

>
> If you can connect a monitor to the server and actually see what happens and
> also if it still accepts keystrokes and stuff, that would probably help in
> diagnosing the problem.

yes it will. i had such problem many times. it's always 
disk/cables/controller problem.

>
> Another tip might be to download memtest86 and run it for a while on the

memory is fine, disk or disk controler or cables are not.