Date: Mon, 5 Feb 1996 14:54:24 +0200 (SAT) From: Robert Nordier <rnordier@iafrica.com> To: luigi@labinfo.iet.unipi.it (Luigi Rizzo) Cc: hackers@freebsd.org Subject: Re: Some thoughts on FAT filesystems Message-ID: <199602051254.OAA00269@eac.iafrica.com> In-Reply-To: <199602050824.JAA20270@labinfo.iet.unipi.it> from "Luigi Rizzo" at Feb 5, 96 09:24:40 am
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On Mon, 5 Feb 1996, Luigi Rizzo wrote: > Since some people is now looking at the msdosfs, it is nice that > the discussion on FAT has progressed a little bit. > > I'd like to contribute some more thoughts. In the following I assume > that there are no concurrent accesses to the FAT partition. New ideas, or combinations of ideas, are always interesting. :-) As the new kid on the block, I think the filesystem you describe would have to show how it is superior to two existing, FAT-incompatible contenders for the title of Improved FAT FS: the HPFS (OS/2) and NTFS (Windows NT). The HPFS makes use of a banding system similar to the one you describe. Both HPFS and NTFS also make use B-Trees in place of unsorted directories. NTFS features transaction logging to support better filesystem recovery, and both support hot-fixing (transparent recovery from media errors). Etc.... Of course, what we really need is a vastly improved FAT filesystem that makes use of FAT-identical data structures, and also is algorithmically similar to all MS-DOS versions in every respect. :-) -- Robert Nordier
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