[558] in linux-scsi channel archive
Re: Errors & Unit Attention
daemon@ATHENA.MIT.EDU (Rob Janssen reading Linux mailingl)
Tue Aug 29 16:35:34 1995
From: linux@pe1chl.ampr.org (Rob Janssen reading Linux mailinglist)
To: sdw@lig.net (Stephen D. Williams)
Date: Tue, 29 Aug 1995 07:23:14 +0200 (MET DST)
Cc: bsa@kf8nh.wariat.org, sdw@lig.net, eric@aib.com, lnz@dandelion.com,
linux-scsi@vger.rutgers.edu
In-Reply-To: <m0sn552-0009yuC@sdwsys> from "Stephen D. Williams" at Aug 28, 95 10:22:26 am
Reply-To: linux-vger@wab-tis.rabobank.nl
According to Stephen D. Williams:
> > Try it with a PC SCSI device sometime. AHA1542s in particular will freeze
> > solid - the on-board microcode crashes and you have to reset/powerdown to
> > get it back. (I have had it happen.) Most other PC SCSI cards of my
>
> This is one of the reasons that I will NEVER use Adaptec again.
> I've had it do this, and burn out the SCSI fuse, with attempted use
> of 8mm tape drives...
>
> I've had so much better results with Future Domain it's not even a contest...
>
> (Note: most of my SCSI hacking/assembling days was in 8-bit/16-bit era...)
I have no complete overview of the Future Domain product line, but what
I have seen of it was in the lower-functionality/performance range.
(more like the AHA1522)
Adaptec also makes high-end adapters with busmastering and a processor
that executes a program on its own (called microcode in the quoted text).
Of course, when you don't have that it can't crash either.
Blown fuses are normally caused by misaligned connectors, not by the
host adapter itself.
Rob
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