[2488] in linux-scsi channel archive
Re: Problems with AHA2940AU
daemon@ATHENA.MIT.EDU (Steffen Grunewald)
Thu Sep 18 07:46:25 1997
From: Steffen Grunewald <steffen@gfz-potsdam.de>
To: amorsen@sscnet.com (Benny Amorsen)
Date: Thu, 18 Sep 1997 13:40:14 +0200 (MET DST)
Cc: tgoltz@mediaone.net, rolf.blaettner@nuernberg.netsurf.de,
linux-scsi@vger.rutgers.edu
In-Reply-To: <m3iuvy6fl1.fsf@sscnet.com> from "Benny Amorsen" at Sep 18, 97 01:12:26 pm
"Benny Amorsen writes"
|>
|> >>>>> "TG" == Tom Goltz <tgoltz@mediaone.net> writes:
|>
|> TG> It is interesting, but not conclusive that the erase operation
|> TG> completes flawlessly when I pull the AHA2940U and install a
|> TG> AHA1542CF instead. This is a much lower-performance controller,
|> TG> unfortunately.
|>
|> The AHA1542CF has decent line drivers. The AHA2940U does not.
|> Therefore the AHA2940U is very sensitive to cabling and termination
|> problems. Rumor has it that there are AHA1542CF's out there with weak
|> line drivers too, but I have not had the displeasure of encountering
|> one.
That rumor is pointing at the 1542C series which has been replaced by
the CF one soon after the weaknesses became known (and the word spread
really fast).
|>
|> What is it that make formerly decent companies like Adaptec and 3com
|> produce such crap nowadays? And more importantly, why do people keep
|> buying it?
It's a strange phemomenon, I must admit. Here in Germany it's nearly
impossible to get other SCSI controllers besides Adaptec. NCR/SymBios
is possible if you ask often enough, but nobody has ever heard of
Advansys,BusLogic, or other manufacturers (and Future Domain is out of
business, I think).
Wherever possible, I try to avoid buying Adaptec 294x.
Steffen
Still looking for a decent ISA controller to replace an old 1542B with...
--
Steffen Grunewald | email steffen@gfz-potsdam.de | fax (+49)-331-8877 520
GeoForschungsZentrum Potsdam, Telegrafenberg A17, D-14473 Potsdam, Germany
http://www.gfz-potsdam.de/
/* Disclaimer : I don't speak for my employers, they don't speak for me */
