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Date:      Mon, 13 Mar 2000 19:36:14 -0800
From:      Kent Stewart <kstewart@3-cities.com>
To:        "Jim C. Nasby" <jim@nasby.net>
Cc:        Brad Knowles <blk@skynet.be>, FreeBSD-STABLE Mailing List <freebsd-stable@FreeBSD.ORG>
Subject:   Re: Weirdest crash I ever saw...
Message-ID:  <38CDB3AE.7C7855CC@3-cities.com>
References:  <Pine.BSF.4.10.10003131441160.29512-100000@barricuda.bsd.nws.net> <Pine.BSF.4.20.0003131500150.30628-100000@mail.wolves.k12.mo.us> <20000313160932.E40149@enteract.com> <v0422081ab4f32dbcaf01@[195.238.24.123]> <38CDA0A7.91067958@nasby.net>

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"Jim C. Nasby" wrote:
> 
> Brad Knowles wrote:
> >
> > At 4:09 PM -0600 2000/3/13, Jim C. Nasby wrote:
> >
> > >  Speaking as a BSEE, the 240V 'leak' is either due to the building wiring or
> > >  due to very poor design (or both). If possible, try plugging both
> > >the computer
> > >  and the RAID array into the same outlet (I don't know if your in the US or
> > >  not, so I don't know if your standard voltage is 120V or 240V).
> >
> >         I'm in Belgium, so standard is 240VAC @ 50Hz.
> >
> > >  In any case, I would very strongly suggest you find the problem and fix it,
> > >  as it could prove to be fatal.
> >
> >         Fatal to me, or fatal to the equipment?  I've already had a
> Yes, and yes.
> 
> > number of unpleasant shocks, but so far nothing has been more than
> > unpleasant.  Interestingly, there was a small amount of leakage even
> What is currently (no pun intended) no more than unpleasant could easily
> turn lethal depending on what's going on.
> 
> > when both systems were turned off and I touched both the case of the
> > Comparex D1400 (Hitachi DF400) and a grounding pin on the same power
> > strip that the drive array is plugged into, which I have to assume
> > comes from the internal batteries in the array.
> Batteries or no, you shouldn't have been able to feel anything that way.
> Sounds like there's something wrong with the equipment. I still wouldn't
> rule out the building wiring either.

It is also possible that what ever has messed up the ground could also
be causing cause the crash.

Kent

> 
> >         If we're talking about fatal to the equipment, that's a much more
> > serious issue.  ;-)
> >
> > --
> >    These are my opinions -- not to be taken as official Skynet policy
> > ======================================================================
> > Brad Knowles, <blk@skynet.be>                || Belgacom Skynet SA/NV
> > Systems Architect, Mail/News/FTP/Proxy Admin || Rue Colonel Bourg, 124
> > Phone/Fax: +32-2-706.13.11/12.49             || B-1140 Brussels
> > http://www.skynet.be                         || Belgium
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-stable" in the body of the message
> 
> --
> Jim C. Nasby (aka Decibel!)                                  /^\
> jim@nasby.net                                               /___\
> Freelance lighting designer and database developer         /  |  \
> Member: Triangle Fraternity, Sports Car Club of America   /___|___\
> 
> Give your computer some brain candy! www.distributed.net Team #1828
> Get paid to surf!! http://www.enteract.com/~nasby/alladvantage.html
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-stable" in the body of the message

-- 
Kent Stewart
Richland, WA

mailto:kstewart@3-cities.com
http://www.3-cities.com/~kstewart/index.html
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