Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!rutgers!sri-spam!ames!sdcsvax!ucbvax!hp-sdd.UUCP!mdavis
From: mdavis@hp-sdd.UUCP (Morgan Davis)
Newsgroups: comp.sys.apple
Subject: Re: Hard disk sizes
Message-ID: <8706020746.AA13309@crash.CTS.COM>
Date: Tue, 2-Jun-87 01:58:25 EDT
Article-I.D.: crash.8706020746.AA13309
Posted: Tue Jun  2 01:58:25 1987
Date-Received: Sun, 7-Jun-87 05:11:55 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Reply-To: hp-sdd!pnet01!pro-sol!mdavis@AMSAA.arpa
Distribution: world
Organization: The ARPA Internet
Lines: 18

Rick Fincher sez:
> Is there still a 32 MB limit for ProDOS 16 volumes?

At the present, yes.  But there is a mechanism installed to handle "guest
filesystems" which allows for variable sized directory entries, larger
bitmaps, more total space, etc.  This was required so that a IIGS running
ProDOS 16 could make use of a CD-ROM device which Apple is all hyped about.

Just yesterday I reformatted my 33Mbyte hard disk to provide 65,535 total
blocks in one volume.  With a new ROM and formatting software, my drive which
used to emulate a Sider now is treated as a big ProDOS volume, and boots
directly into ProDOS instead of DOS 3.3.  The unfortunate aspect is that there
must be nearly a megabyte of extra space on the drive that ProDOS can't access
since it's set into the $FFFF total blocks mode.

UUCP: [ ihnp4 akgua hplabs!hp-sdd sdcsvax nosc ] !crash!pnet01!pro-sol!mdavis
ARPA: crash!pnet01!pro-sol!mdavis@nosc
INET: mdavis@pro-sol.CTS.COM