Path: utzoo!attcan!uunet!husc6!mailrus!ames!pasteur!ucbvax!pro-beagle.cts.com!mattr
From: mattr@pro-beagle.cts.com (Matt Reimer)
Newsgroups: comp.sys.apple
Subject: RE: GS RAM disk
Message-ID: <8812022016.AA20309@crash.cts.com>
Date: 2 Dec 88 19:22:53 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: pnet01!pro-beagle!mattr@nosc.mil
Organization: The Internet
Lines: 17

When the Control Panel settings are not the same, memory for the RAM disk is
allocated on an as-needed basis.  If the RAM disk needs to expand but there's
not enough memory, it returns a bad block error.

What happens when you're trying to copy a bunch of files with the Finder is
that the Finder reads a many of the files as it can into memory, and then
writes them to disk.  Now when it tries to write them to the RAM disk, there
may not be enough memory to enlarge the RAM disk, so a bad block error is
returned.

This problem won't show up if you have lots of RAM or you copy a smaller
amount of data at one time.  Also, once the RAM disk allocates memory it is
not released, so once the RAM disk reaches its maximum size this problem won't
show up.

Matt Reimer
mattr (pro-beagle)