Article View: comp.sys.mac
Article #17558Re: A/UX filesystem performance
From: Joel West
Date: Thu, 23 Jul 1987 14:44
Date: Thu, 23 Jul 1987 14:44
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1405 bytes
In article <2495@hoptoad.uucp>, tim@hoptoad.uucp (Tim Maroney) writes:
> A/UX runs on top of the Mac OS. If the UNIX file system is not "real UNIX"
> but merely a front-end to the Mac HFS software
This is a common misconception. Actually, A/UX junks the Mac OS. The
file system is by Unisoft from AT&T and BSD. The current mount command
recognizes V.2 and 4.3 file systems, and the default seems to be V.2.
As for HFS, unless I'm mistaken, there is no way currently to read or write HFS
disks, so it certainly isn't layered. You couldn't use the old OS anyway,
since it is not multi-tasking, re-entrant, and uses the Macintosh Memory
Manager instead of malloc and memory mapped by the 68851.
Someone who's read the manuals...
--
Joel West, Palomar Software, Inc. (c/o UCSD)
{ucbvax,ihnp4}!sdcsvax!jww or jww@sdcsvax.ucsd.edu
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!seismo!gatech!hao!ames!sdcsvax!jww From: jww@sdcsvax.UCSD.EDU (Joel West) Newsgroups: comp.sys.mac Subject: Re: A/UX filesystem performance Message-ID: <3508@sdcsvax.UCSD.EDU> Date: Thu, 23-Jul-87 10:44:56 EDT Article-I.D.: sdcsvax.3508 Posted: Thu Jul 23 10:44:56 1987 Date-Received: Sat, 25-Jul-87 07:15:19 EDT References: <44025@beno.seismo.CSS.GOV> <10252@amdahl.amdahl.com> <2495@hoptoad.uucp> Organization: Palomar Software, Inc., Vista, CA Lines: 17