From owner-freebsd-hackers Thu Oct 25 0:35: 8 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from magnesium.net (toxic.magnesium.net [207.154.84.15]) by hub.freebsd.org (Postfix) with SMTP id 4099D37B405 for ; Thu, 25 Oct 2001 00:35:04 -0700 (PDT) Received: (qmail 57128 invoked by uid 1165); 25 Oct 2001 07:35:03 -0000 Date: 25 Oct 2001 00:35:03 -0700 Date: Thu, 25 Oct 2001 00:35:03 -0700 From: Seth Kingsley To: =?iso-8859-1?Q?Jes=FAs_Arn=E1iz?= Cc: FreeBSD hackers Subject: Re: CFS Message-ID: <20011025003503.A52429@fluff.meowfishies.com> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="cNdxnHkX5QqsyA0e" Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from jesus_listas@pasapues.com on Tue, Oct 23, 2001 at 04:54:21PM +0200 X-Operating-System: FreeBSD 4.4-STABLE i386 X-GPG-Key-ID: 1024D/5C413B08 X-GPG-Key-Fingerprint: F772 5D24 02B4 D233 90F5 080F 0F50 3298 5C41 3B08 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --cNdxnHkX5QqsyA0e Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Oct 23, 2001 at 04:54:21PM +0200, Jes=FAs Arn=E1iz wrote: > I heard about CFS and TCFS (but this is not still supported by FreeBSD), = is > there any better bet? If anyone know any good resource (sites, papers, ..= .) > on these topics please tell me. I can attest to using CFS for several practical purposes. It has a few nice features including being able to completely hide attached directories from all users except the owner (including root), and it can store extra checksum information in the gid field of the i-node so long as you don't chown it for the lifetime of the file. It works with an NFS loopback and encrypts the on-disk filenames. One drawback is that it processes requests in a single-threaded manner, making it not very good for things like hosting compiles. The AT&T paper from Matt Blaze's site describes the implementation and has some benchmarks: ftp://research.att.com/dist/mab/cfs.ps --=20 || Seth Kingsley || Meow Meow Fluff Fluff || sethk@meowfishies.com || || rndcontrol -s 0 || --cNdxnHkX5QqsyA0e Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (FreeBSD) Comment: For info see http://www.gnupg.org iD8DBQE718CnD1AymFxBOwgRAk6pAJ9iGOZfIDY3HCtJfWkpYhBYPrSMZwCeNz9U iPVD17FSrPdgMNvtNUdOaG0= =T5dU -----END PGP SIGNATURE----- --cNdxnHkX5QqsyA0e-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message