From owner-freebsd-hackers@FreeBSD.ORG Thu Sep 16 06:41:43 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 6C42A16A4CE for ; Thu, 16 Sep 2004 06:41:43 +0000 (GMT) Received: from relay.pair.com (relay.pair.com [209.68.1.20]) by mx1.FreeBSD.org (Postfix) with SMTP id DDD8D43D45 for ; Thu, 16 Sep 2004 06:41:42 +0000 (GMT) (envelope-from silby@silby.com) Received: (qmail 4026 invoked from network); 16 Sep 2004 06:41:41 -0000 Received: from niwun.pair.com (HELO localhost) (209.68.2.70) by relay.pair.com with SMTP; 16 Sep 2004 06:41:41 -0000 X-pair-Authenticated: 209.68.2.70 Date: Thu, 16 Sep 2004 01:41:40 -0500 (CDT) From: Mike Silbersack To: Sam In-Reply-To: Message-ID: <20040916013550.I11071@odysseus.silby.com> References: <41483C97.2030303@fer.hr> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed cc: hackers@freebsd.org 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: Thu, 16 Sep 2004 06:41:43 -0000 On Wed, 15 Sep 2004, Sam wrote: > Call me crazy, but does anyone else see this as hooey? 2^64 512B > sectors is 8192 zettabytes (zetta, exa, peta, tera, ...). > > I'm also wondering what perversion of moore's law is applicable to > storage consumption. > > Crappy marketing articles. > > Sam Maybe they're actually doing some sort of sub-sector addressing, so the 2^64 refers to the number of bytes on the disk, rather than the number of sectors. That would bring it down by 2^9, and might make the argument more potent. It'll be interesting to see what Hans Reiser says about it... Obviously he's biased towards ReiserFS, but he's certainly much more familiar with FS design than most of us, and will certainly have opinions. :) Mike "Silby" Silbersack