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From: fjo@ttrdf.UUCP (Frank Owen )
Newsgroups: comp.sys.apple,comp.sys.mac
Subject: Re: Hard Drives
Message-ID: <337@ttrdf.UUCP>
Date: 3 Mar 88 23:49:13 GMT
References: <3160@phri.UUCP>
Organization: AT&T, Skokie, IL
Lines: 20

>> 3rd party scsi drives need custom formatters
> 
> 	So, there is at least one example of a thrid party disk which does
> not need a custom formatter.  Disproof by counterexample.

Another counter-example:
  Take a standard off-the-shelf Seagate ST225N disk drive. Wire
up an appropriatte SCSI connector to connect to Apples weird DB-25
connector.  Apples Standard formatter can then be used to initialize
this drive.
  Only one possible problem: If you want to connect to the non-platinum
Mac-pluses, you will have to disable the UNIT ATTENTION feature of the
ST225N. This is easily done by sending a "magic" SCSI command to the drive.
(see the seagate manual for details)


-- 
Frank Owen (fjo@ttrde)  312-982-2182
AT&T Information Systems
Computer Systems Division, 5555 Touhy Ave., Skokie, IL  60077
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