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From: doug@letni.UUCP (Doug Davis)
Newsgroups: comp.sys.m68k
Subject: Re: What to do with SASI?
Keywords: Disk, SASI, VME
Message-ID: <8726@letni.UUCP>
Date: 23 Mar 90 01:36:44 GMT
References: <11857@etana.tut.fi> <9662@netcom.UUCP>
Reply-To: doug@letni.LoneStar.Org (Doug Davis)
Organization: Logic Process  Dallas, Texas.
Lines: 23

In article <9662@netcom.UUCP> hue@netcom.UUCP (Jonathan Hue) writes:
>In article <11857@etana.tut.fi> pl@sparrow.tut.fi (Lehtinen Pertti) writes:
>>	I got some second source VME cards, and one of them is
>>	SASI controller from Plessey. What I like to know is:
>>	What kind of disks I can connect to it?
>Ok, correct me if I'm wrong, but I think you can use SCSI disks on
>a SASI bus as long as there is only one initiator on the whole bus (no
>arbitration phase).

A SASI bus is a SCSI bus driven by software.  It's all in the hands of the
implementer and how good their implmentation is.  Some are very
good and allow all normal SCSI commands as well as arbitration, disconnect,
reconnect, sync, parity.. In some others the only thing in common with SCSI
s they might have the same number of pins. 


doug
__
Doug Davis/4409 Sarazen/Mesquite Texas, 75150/214-270-9226
{texsun|lawnet|texbell}!letni!doug or doug@letni.lonestar.org
"Well, that was a piece of cake, eh K-9?"
"Piece of cake, Master?  Radial slice of baked confection ...
coefficient of relevance to Key of Time: zero."