Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!uunet!easy!lron
Newsgroups: comp.sys.amiga
Subject: Re: A simple question about 3.5" disks.
Message-ID: <186d2999.ARN08c8@easy.hiam>
Date: 27 Dec 90 02:20:57 GMT
References: <90340.142716IO00844@MAINE.BITNET>
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In article <90340.142716IO00844@MAINE.BITNET>, Zero Batzell writes:

> On what track is the directory located on a 3.5" disk? (Having had experience w
> ith 5.25" disks before upgrading to an amiga, I DO know that the directory on a
>  5.25" disk is located on track 18.).  Also, I am interested in any other infor
> mation having to do with the internals of 3.5" disks.         (((ZERO)))

Well, on the C64 the directory track on the 5.25" disk was on track 18.  Neither
the old Amiga Dos file system nor the newer FFS system have directory tracks.
Directory tracks limit the maximum number of files a drive can have as well
as the fact if that track get's canned you loose all the data on this disk while
the Amiga it is possible to run a program like Disksalve and get back most
everything that wasn't on the physically damaged area of the disk.  When dealing
with the Amiga just think LINKED LIST and everything kinda falls into place.

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@DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDADDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDY