Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!evax!utacfd!merch!cpe!adaptex!adaptx1!neese
From: neese@adaptx1.UUCP
Newsgroups: comp.periphs.scsi
Subject: Re: Low disk throughput on Xenix 2.3.2/
Message-ID: <283400077@adaptx1>
Date: 19 Mar 91 06:58:01 GMT
References: <20092@simasd.uucp>
Lines: 18
Nf-ID: #R:simasd.uucp:20092:adaptx1:283400077:000:788
Nf-From: adaptx1.UUCP!neese    Mar 18 11:07:00 1991


>STUFF DELETED<
>	now a question for folks out there using a similar configuration.
>	when i bring down the systems (via a haltsys or reboot), i must
>	press the reset button to affect a hard reset before the computer
>	will recognize the adaptec scsi controller -- do i have my system
>	set up wrong or is there no way to reboot xenix without a hard
>	reset (ie reset button or cycle the power) ???

This is due to the motherboard not asserting the AT bus reset line on a soft
reset.  Some motherboards do not do this and so the 154x will not know when
it can do it's thing for power up.  We rely on the reset line to tell use to
start all over again.

			Roy Neese
			Adaptec Senior SCSI Applications Engineer
			UUCP @  neese@adaptex
				uunet!cs.utexas.edu!utacfd!merch!adaptex!neese