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Path: utzoo!mnetor!uunet!husc6!linus!spdcc!dyer
From: dyer@spdcc.COM (Steve Dyer)
Newsgroups: comp.periphs,comp.unix.wizards
Subject: Re: WORM drives anyone ?
Message-ID: <1041@spdcc.COM>
Date: 6 May 88 06:01:48 GMT
References: <160@rna.UUCP>
Reply-To: dyer@spdcc.COM (Steve Dyer)
Organization: S.P. Dyer Computer Consulting, Cambridge MA
Lines: 17

Simpson Garfinkle designed and implemented a WORM filesystem (WOFS) while
at the Media Lab at MIT.  It integrates most easily into a BSD UNIX
environment through an NFS interface; he had a prototype user-mode
NFS server running on a Sun.  It also looks promising for the System
5.3 file system switch.  You might contact him for more details:
simsong@athena.mit.edu should suffice.

Needless to say, a properly layered SCSI driver with media-dependent
top-ends (hard disk, tape, WORM) and a controller-dependent SCSI
bottom end is also essential.  If you hunt for off-the-shelf drivers,
you'll usually find that a SCSI driver will insist on treating a WORM like
a hard disk, a paradigm which is at best incomplete.

-- 
Steve Dyer
dyer@harvard.harvard.edu
dyer@spdcc.COM aka {ihnp4,harvard,husc6,linus,ima,bbn,m2c}!spdcc!dyer