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Path: utzoo!linus!decvax!ittvax!dcdwest!sdcsvax!sdccsu3!brian
From: brian@sdccsu3.UUCP
Newsgroups: net.micro
Subject: Re: SS vice DS disks
Message-ID: <1390@sdccsu3.UUCP>
Date: Thu, 8-Dec-83 14:35:42 EST
Article-I.D.: sdccsu3.1390
Posted: Thu Dec  8 14:35:42 1983
Date-Received: Sat, 10-Dec-83 02:33:09 EST
References: <14118@sri-arpa.UUCP>
Organization: UCSD beer & pizza society
Lines: 16

x

On a lot of DS 8" disk drives there is an output (I think its pin 10 on
the standard Shugart connector) that is active (low) when the drive has
sensed a two-sided disk in the drive.  Intelligent controllers can sense
this and react accordingly.

On some drives (the MFE and the Qume, I believe) its also possible to
set a jumper option which will make the drive 'not ready' if a single
sided disk is put in it - thus limiting it to double sided disks only.


-- 
	-Brian Kantor, UC San Diego 
	{decvax,ucbvax} !sdcsvax!sdccsu3!brian
	Kantor@Nosc