Date:	Fri, 16 Jul 1999 16:25:14 +0200
From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Message-Id:	<199907161425.QAA01898@acp3bf.physik.rwth-aachen.de>
To:	ams AT ludd DOT luth DOT se (Martin Str|mberg)
Cc:	djgpp AT delorie DOT com
Subject:	Re: Memory and cache configuration
Newsgroups:	comp.os.msdos.djgpp
Organization:	RWTH Aachen, III. physikalisches Institut B
X-Newsreader:	TIN [version 1.2 PL2]
Reply-To:	djgpp AT delorie DOT com

In article <7ml5gg$50s$1 AT news DOT luth DOT se> you wrote:

> The problem the disk caches that I've found only cache hard and floppy
> drives, not network drives.

That's not a problem, it's an inherent limitation of network drives,
to some extent. Networks drives will be used by several machines, at
the same time, so you simply cannot know if contents you cached a
second ago are still valid, unless you lock every bit of data being
cached by one machine for write access by every other one. If at all,
caching of such drives can only done in the networked filesystem
driver, by cooperation with the fileserver. A machine-local drive
cache cannot possibly do it.

--
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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