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From: draper@buster.cps.msu.edu (Patrick J Draper)
Newsgroups: comp.os.msdos.misc
Subject: Re: FASTOPEN  (was Another QEMM problem.)
Message-ID: <1991May6.211725.15163@msuinfo.cl.msu.edu>
Date: 6 May 91 21:17:25 GMT
References: <1991May5.194030.2078@clmqt.marquette.Mi.US> <1991May6.080323.6898@msuinfo.cl.msu.edu> <1991May6.131604.16735@maytag.waterloo.edu>
Sender: news@msuinfo.cl.msu.edu
Reply-To: draper@buster.cps.msu.edu (Patrick J Draper)
Organization: Dept. of Computer Science, Michigan State University
Lines: 25
Originator: draper@buster.cps.msu.edu

In article <1991May6.131604.16735@maytag.waterloo.edu> dmurdoch@watstat.waterloo.edu (Duncan Murdoch) writes:
>
>Exactly what uses of share cause problems?  Command.com uses FCB's when it
>deletes files; is this safe without share? 
>
>Duncan Murdoch
>
>P.S. I've set followups to comp.os.msdos.misc; this doesn't have anything to
>do with DV any more.

This is my understanding, and someone will correct me if I'm wrong.

FCB's can handle only 32 MB of disk space, and if you try to write a
file beyond that, the FCB will 'wrap around' and trash the disk. I
believe that the reason deletes work alright is that on most disks, the
partition, FAT's and directories are located in the first 32Megs of the
drive.


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Patrick Draper     "College is supposed to prepare you for the future,
cps.msu.edu               but all my future's behind me." 
draper@cps.msu.edu      -- My GrandPa, age 85, Fall 1990 graduate
                           of Western Michigan University 
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