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From: cdold@starfish.Convergent.COM (Clarence Dold)
Newsgroups: comp.unix.xenix,comp.periphs
Subject: Re: adaptec 2322 cont / maxtor 338 drive / 386 Xenix
Message-ID: <693@starfish.Convergent.COM>
Date: 6 Sep 88 18:13:00 GMT
References: <457@uport.UUCP>
Organization: Convergent Technologies, San Jose, CA
Lines: 17

From article <457@uport.UUCP>, by plocher@uport.UUCP (John Plocher):
> You might also want to try the Adaptec 2372 RLL controller with your
> Maxtor 1140 drive (and also use all 1220 cyls on the 1140, even if they
> tell you about 918 of them :-)  Remember, tho, that if cyls 919 - 1220
> don't work, Maxtor doesn't care :-)))
Careful there.
To my knowledge, Maxtor makes three 140MB St-506 disks.
Two of these are 918 cyl, 15 heads, the MK I consumes more power than the MK II.
There is also a cheaper disk with 11 heads, and some larger number of cylinders.
Note that a WD1010 can only access 1024 Cylinders, due to an internal 10 bit
register, and it does a MODULO 1024, corrupting cylinder 0, when it tries
to write to 1024.  Also note that some controllers can only access 8 heads, 
due to a 3 bit head address, rather than the 16 heads (2^4) under ST-412.
-- 
Clarence A Dold - cdold@starfish.Convergent.COM		(408) 435-5274
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		P.O.Box 6685, San Jose, CA 95150-6685