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From: rossw@march.co.uk (Ross Wakelin)
Newsgroups: comp.unix.sysv386,comp.periphs.scsi
Subject: INTEL 5.4 2.0 and Adaptec 1542B
Message-ID: <1991May20.145226.7155@march.co.uk>
Date: 20 May 91 14:52:26 GMT
Organization: MARCH Systems Consultancy Ltd
Lines: 22

The INTEL 5.4 release 2.0 (developers edition) has buggy drivers for the
Adaptec 1542B SCSI host adaptor.

We were using this adaptor in a 25Mhz Mylex 486 motherboard, and achieved 
a record number of system lockups and crashes.  The machine would go away
for a minute or so and then report a SCSI error.  At this point, our only 
option was to reboot the machine.

We replaced the 1542B with a WD-7000 FAST card, and found that we still got
the SCSI errors, but that the driver for the WD board recovered from the errors
and let us continue processing.  Needless to say, we are now production on
the WD board.

Hopefully this is one of the things that was (will be) fixed in the
handover to Interactive.



-- 
Ross Wakelin                                        r.wakelin@march.co.uk
Unix Systems Director                   or ..mcsun!ukc!slxsys!march!rossw 
March Systems Consultancy Ltd