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From: rsanders@watdcsu.UUCP
Newsgroups: comp.sys.att
Subject: Re: info on 7300 disk drives
Message-ID: <3395@watdcsu.UUCP>
Date: Wed, 20-May-87 09:34:28 EDT
Article-I.D.: watdcsu.3395
Posted: Wed May 20 09:34:28 1987
Date-Received: Thu, 21-May-87 05:23:09 EDT
References: <6485@mhuxu.UUCP> <1390@hou2d.UUCP> <506@unisec.usi.com> <166@gizzmo.UUCP> <1750@ihlpe.ATT.COM> <856@kodak.UUCP>
Reply-To: rsanders@watdcsu.UUCP (Roger K. Sanderson P.Eng.)
Organization: U. of Waterloo, Ontario
Lines: 39
Keywords: 7300 drives

In article <856@kodak.UUCP> hill@kodak.UUCP (mark hilliard) writes:
>In article <1750@ihlpe.ATT.COM> psfales@ihlpe.ATT.COM (Peter Fales) writes:
>> WRONG!!  Sorry to flame, but I would hate to see anyone go out and purchase
>>a SCSI drive.  The 7300 uses ST506 drives like those used on the 6300 and

Sorry, but the origional posting was RIGHT ! I am not sure about the specifics
of th 7300, but the interface standards I do.

>
>WRONG again, the SASI and SCSI are acronyms that the drive companies give to
>their standard ST506 interfaces! If a drive is a SASI it IS a ST506.  Please

This IS WRONG the difference between SASI (SCSI) and ST506(ST412) is enough
to require a controller board which costs about $200.00. Various
manufactuers make these. Adaptec and Xebex (model 1410) come to mind.

>check out your facts before making generalized statements about winchester
>drives. I have been installing SASI and SCSI drives in the 7300 and 3B1 for
 
Likewise with you. SASI does not equal ST506!

>SASI stands for Sugart Associates Standard Interface  which the other 
>companies didnt like so they renamed it to SCSI which means Small Computer
>Standard Interface.

TRUE (more or less) the SCSI standard actually does more than SASI (SASI
is a subset).

>They are both the same and both ST506, which some other
>companies call ST412.

Not true, ST506(ST412) is the interface at the drive. SASI(SCSI) is
the interface at the controller.


-- 
  Roger Sanderson: {clyde|decvax|ihnp4}-\
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