Date: Wed, 28 Aug 1996 17:22:48 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: regnauld@tetard.glou.eu.org (Philippe Regnauld) Cc: smp@csn.net, hackers@FreeBSD.org Subject: Re: hackers-digest V1 #1415 Message-ID: <199608280752.RAA13407@genesis.atrad.adelaide.edu.au> In-Reply-To: <199608272023.WAA00389@tetard.glou.eu.org> from "Philippe Regnauld" at Aug 27, 96 10:23:59 pm
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Philippe Regnauld stands accused of saying: > > why so, modern drives provide active termination, one less connector to > > cause problems... > > Because I've seen flaky such terminators, including reports here in > -hackers: whether the jumper was in or not, there would still be > problems (no probe, timeouts, hanging at boot). > > Also, it happens that you forget to terminate the new replacement > disk when you swap out the first disk on the cable. Without > mentioning when you insert a terminated disk in the middle of a > chain :-) So you just get one of those long 7 connector SCSI > ribbons and snap a terminator on one end. As I said, it's mostly > handy tips, I'm not forcing anyone to go and buy such a terminator > if they don't have one. Never, ever, _EVER_ terminate on a drive that is not in the same case as the controller. _Always_ use a terminator that plugs onto the daisy-out connector on the last case you're using. Wherever possible, use active terminators, and go for the ones that have LED's in them so that you can be absolutely certain that they have power. -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] Collector of old Unix hardware. "Where are your PEZ?" The Tick [[
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