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From: glenn@extro.ucc.su.oz.au (G Geers)
Newsgroups: comp.unix.xenix
Subject: AT interface under xenix/386 2.3.2
Message-ID: <1990Jan9.234525.12280@metro.ucc.su.oz.au>
Date: 9 Jan 90 23:45:25 GMT
Reply-To: glenn@extro.ucc.su.oz.au (G Geers)
Organization: University Computing Service, Uni. of Sydney, Australia.
Lines: 41

Hi,
	just a couple of quick questions.

	We are considering purchasing some new disks for one of our xenix systems
so I strolled into a computer shop that is quite close to where I live only
to find that they are the Australian Seagate distributor. Consequently they
handed me their latest brochure. 

After looking through this I came across two drives which appear to be quite
good. They are:
1. ST4144R  122.7Mb formatted, ST412 interface (<- supplants ST506 ??)
2. ST1144A  125.8Mb formatted, AT interface

The ST1144A is not due for release in Australia until the end of the month.

Looking through the Xenix release notes I am led to believe that the ST4144R
will run under Xenix. What controller do people recommend ? It is an RLL drive
but I don't think that matters.

The ST1144A is a 3.5" drive with a maximum(!) seek time of 20ms which is quite
quick. The problem is that the AT interface is not mentioned anywhere in the
Xenix docs. Has anyone used this drive (I'm guessing it's been released in
the US or Europe, we're always a little behind.) ? Does anyone know how an
AT interface differs from the standard ST412 ? Will Xenix support an AT
interface.

Seagate also sell a lot of SCSI interface drives but our version of
Xenix (386AT) does not have the drivers.

Replies to the net or email to glenn@extro.ucc.su.oz would be greatly
appreciated.
		Thanks in advance,
					Glenn


glenn@extro.ucc.su.oz

Glenn Geers
Dept. Theoretical Physics
Uni. of Sydney
Sydney 2006 Australia