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From: j@bonnie.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Strange Crash
Date: 28 Aug 1995 16:43:28 +0200
Organization: Private U**x site, Dresden.
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References: <DDywqs.Jo9@ritz.mordor.com> <41q60m$p3u@reason.cdrom.com> <41rdkp$htt@gate.sinica.edu.tw>
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Brian Tao <taob@gate.sinica.edu.tw> wrote:
>>Yeah, I have.. I used to have a drive that would, very occasionally, just
>>decide that it was having an attack of existential angst and needed to spin
>>down for awhile.
>
> Sounds like a wonky power supply or a thermal recal gone bezerk. ;-)
I've also seen this for a disk that insisted on active termination,
while the external terminator has been a passive one. I suspect it
was a problem that the disk did also try to feed `term power' to the
bus, which was 2.85 V in this case, while the adapter perhaps did feed
its +5 V. Anyway, i've been tired of all this, and after jumpering
everything back to passive termination (220/330 Ohm against ground and
+5 V), the disk did no longer misbehave.
Only my DM 0.02.
--
cheers, J"org private: joerg_wunsch@uriah.heep.sax.de
http://www.sax.de/~joerg/
Never trust an operating system you don't have sources for. ;-)