From owner-freebsd-hackers@FreeBSD.ORG Thu Sep 16 23:15:14 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 84BA316A4CE for ; Thu, 16 Sep 2004 23:15:14 +0000 (GMT) Received: from mail6.speakeasy.net (mail6.speakeasy.net [216.254.0.206]) by mx1.FreeBSD.org (Postfix) with ESMTP id 201F943D2F for ; Thu, 16 Sep 2004 23:15:14 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: (qmail 7683 invoked from network); 16 Sep 2004 23:15:13 -0000 Received: from gate.funkthat.com (HELO hydrogen.funkthat.com) ([69.17.45.168]) (envelope-sender ) by mail6.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 16 Sep 2004 23:15:13 -0000 Received: from hydrogen.funkthat.com (tgbshk@localhost.funkthat.com [127.0.0.1])i8GNFDuU018175; Thu, 16 Sep 2004 16:15:13 -0700 (PDT) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.12.10/8.12.10/Submit) id i8GNFCwl018174; Thu, 16 Sep 2004 16:15:12 -0700 (PDT) Date: Thu, 16 Sep 2004 16:15:12 -0700 From: John-Mark Gurney To: Kris Kennaway , Sam , freebsd-hackers@FreeBSD.ORG Message-ID: <20040916231512.GT72089@funkthat.com> Mail-Followup-To: Kris Kennaway , Sam , freebsd-hackers@FreeBSD.ORG References: <20040916211837.GE70401@hub.freebsd.org> <20040916225349.GA892@VARK.homeunix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040916225349.GA892@VARK.homeunix.com> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 4.2-RELEASE i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html Subject: Re: ZFS X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: John-Mark Gurney List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Sep 2004 23:15:14 -0000 David Schultz wrote this message on Thu, Sep 16, 2004 at 18:53 -0400: > > Now, over a year of runtime, the raw data amounts to (according to > > Google Calculator): > > > > (100 (terabytes / sec)) * 1 year = 3.4697207 10^21 bytes > > > > or just over 2^71 bytes in a year. > > A UC Berkeley study has some interesting statistics on total > storage sold per year, including a breakdown by medium: > > http://www.sims.berkeley.edu/research/projects/how-much-info-2003/printable_magnetic.pdf > > They place the total storage sold in 2003 at 2^68 bytes and the > amount of original data produced at 2^62 bytes. Ummm.. Don't forget that pdf is only talking about megnetic media.. it doesn't include all the CD/DVD+-RW? discs sold.. A single store probably has close to a half petabyte of optical media too... Plus it doesn't include all the cd and dvd's sold either.. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."