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Article #4668

Re: Mac Hard Drive Problems (Seagate)

#4668
From: Tim W Smith
Date: Sat, 16 Sep 1989 03:00
24 lines
1608 bytes
<    I have spoken with Apple's customer relations department, which says that
< Apple has no such arrangement with Seagate and, in fact, indicated that the
< drive would not work unless purchased directly from Apple.  To add insult to

This will be true for some drives, if you are intending to use Apple's
software.  Apple gets the drive vendors to make ROM changes to the
drives.  For example, the Seagate ST157N drive Apple sells will claim
in the inquiry data to be a Seagate ST157NB.  Note that "B" there.
HD Setup looks for this and knows when you have replaced your Apple
drive with a non-Apple Seagate.

So, if you sent a broken ST157NB to Seagate, and they had to replace the
controller card, you would probably get an ST157N, which would not work.

Apple has claimed somewhere that they make other firmware changes besides
changing the inquiry data, but I am not sure that I believe them.  I can't
think of anything that needs to be changed in most current SCSI drives,
and I've never seen any problems when I've used TMON to spoof Apple software
into thinking that a non-Apple drive was an Apple drive.

Does anyone know what other changes, if any, Apple has done to these
disk drives?

						Tim Smith
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Message-ID: <22201@cup.portal.com>
Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!portal!cup.portal.com!ts
References: <10119@bsu-cs.bsu.edu>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!portal!cup.portal.com!ts
From: ts@cup.portal.com (Tim W Smith)
Newsgroups: comp.sys.mac
Subject: Re: Mac Hard Drive Problems (Seagate)
Message-ID: <22201@cup.portal.com>
Date: 16 Sep 89 03:00:03 GMT
References: <10119@bsu-cs.bsu.edu>
Organization: The Portal System (TM)
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