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From: ehsu@husc9.harvard.edu (Eric Hsu)
Newsgroups: comp.sys.apple2
Subject: Re: Hard Drives
Message-ID: <1991Apr29.030514.728@husc3.harvard.edu>
Date: 29 Apr 91 07:05:13 GMT
References: <11359@mentor.cc.purdue.edu> <15111@darkstar.ucsc.edu> <6169@vela.acs.oakland.edu>
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In article <6169@vela.acs.oakland.edu> mkheintz@vela.acs.oakland.edu (Michael Heintz) writes:
>BTW: The SCSI that apple uses (including Apple II and Macintosh)
>is, as I understand it, not quite standard.  SCSI devices that
>work on the  Mac will work on the II, but IBM SCSI and Apple SCSI
>are not interchangeable (again, that is what I have heard.. I
>have never tried it).

I understand the Mac Plus uses nonstandard SCSI, but other Macs work fine
with ordinary SCSI. 

>You are safe buying any SCSI hard drive for the Apple II that
>works on the Macintosh!

Actually, I hear this is not a safe thing to do since some manufacturers
supposedly twiddle with the SCSI enough so that their software works only
on their drives, leading to lots of "Mac-SCSI" drives which are not really
SCSI. I'm told it's a safe bet to buy real SCSI drives for the Apple SCSI card.

Also... I am personally having a nightmare of a time getting this Ohio Kache
Card SCSI connector to recognize this CDC SCSI drive long enough to format it.
It takes about three minutes for card to send the drive some magic signal to 
wake up and come up to speed. After that it doesn't recognize the drive at all.
An engineer suggested that I format the drive for an Apple // first of all. 

If anyone in the Boston area has an Apple Hi-Speed SCSI card they'd like to 
lend or sell, send me e-mail.

>
>Mike
>mkheintz@vela.acs.oakland.edu

-- 

Eric Hsu                           ehsu@husc4.Bitnet, ehsu@husc9.harvard.edu