From owner-freebsd-hackers@FreeBSD.ORG Wed Sep 15 17:03:31 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EE15A16A4CE for ; Wed, 15 Sep 2004 17:03:30 +0000 (GMT) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [81.2.69.218]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7DCEB43D53 for ; Wed, 15 Sep 2004 17:03:29 +0000 (GMT) (envelope-from m.seaman@infracaninophile.co.uk) Received: from happy-idiot-talk.infracaninophile.co.uk (localhost.infracaninophile.co.uk [IPv6:::1])i8FH3MDH075773 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 15 Sep 2004 18:03:22 +0100 (BST) (envelope-from matthew@happy-idiot-talk.infracaninophile.co.uk) Received: (from matthew@localhost)i8FH3Mft075772; Wed, 15 Sep 2004 18:03:22 +0100 (BST) (envelope-from matthew) Date: Wed, 15 Sep 2004 18:03:22 +0100 From: Matthew Seaman To: Wilko Bulte Message-ID: <20040915170322.GA75590@happy-idiot-talk.infracaninophile.co.uk> Mail-Followup-To: Matthew Seaman , Wilko Bulte , Andrea Campi , Sam , hackers@freebsd.org References: <41483C97.2030303@fer.hr> <20040915152639.GB68395@webcom.it> <20040915154338.GA55823@freebie.xs4all.nl> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="/9DWx/yDrRhgMJTb" Content-Disposition: inline In-Reply-To: <20040915154338.GA55823@freebie.xs4all.nl> User-Agent: Mutt/1.4.2.1i X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-1.5.6 (smtp.infracaninophile.co.uk [IPv6:::1]); Wed, 15 Sep 2004 18:03:22 +0100 (BST) X-Virus-Scanned: clamd / ClamAV version devel-20040904, clamav-milter version 0.75l on smtp.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, hits=-4.8 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=2.64 X-Spam-Checker-Version: SpamAssassin 2.64 (2004-01-11) on happy-idiot-talk.infracaninophile.co.uk cc: Sam cc: hackers@freebsd.org cc: Andrea Campi Subject: Re: ZFS X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 15 Sep 2004 17:03:31 -0000 --/9DWx/yDrRhgMJTb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 15, 2004 at 05:43:38PM +0200, Wilko Bulte wrote: > On Wed, Sep 15, 2004 at 05:26:39PM +0200, Andrea Campi wrote.. > > On Wed, Sep 15, 2004 at 10:59:36AM -0500, Sam wrote: > > > Call me crazy, but does anyone else see this as hooey? 2^64 512B > > > sectors is 8192 zettabytes (zetta, exa, peta, tera, ...). > > [...] > > > Crappy marketing articles. > >=20 > > This one's good though. fortune(6) worthy, I mean: > >=20 > > Populating 128-bit file systems would exceed the quantum limits of > > earth-based storage. You couldn't fill a 128-bit storage pool without > > boiling the oceans. >=20 > Hmmmm... that explains the global warming then... I once calculated that there were sufficient IPv6 addresses (another 128 bit quantity) to provide a distinct address for every cluster of about 10^12 atoms within planet Earth. 10^12 atoms sounds like quite a lot, but it is much smaller than a typical bacterium and a hell of a lot smaller than any transistor ever manufactured: even if you converted the entire planet into a data storage system, you wouldn't have enough matter to build a filesystem that big, let alone power supplies, cabling, support structures etc. Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK --/9DWx/yDrRhgMJTb Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBSHXaiD657aJF7eIRAvwJAJ455OegVT5+m5gC9XKDaryz1nv21QCgnRT/ V+/6X2QSYSk/hmdH/hLhDRY= =7eyZ -----END PGP SIGNATURE----- --/9DWx/yDrRhgMJTb--