From owner-freebsd-hackers@FreeBSD.ORG Wed Sep 15 20:48:26 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 AB10C16A4CE for ; Wed, 15 Sep 2004 20:48:26 +0000 (GMT) Received: from electricrain.com (electricrain.com [64.71.143.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6F72843D39 for ; Wed, 15 Sep 2004 20:48:26 +0000 (GMT) (envelope-from fuzzy@electricrain.com) Received: (qmail 11506 invoked by uid 540); 15 Sep 2004 20:48:24 -0000 Date: Wed, 15 Sep 2004 13:48:24 -0700 From: Chris Doherty To: hackers@freebsd.org Message-ID: <20040915204824.GI7022@zot.electricrain.com> References: <41483C97.2030303@fer.hr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i X-Operating-System: XEmacs X-Koan: mu. X-Message-Flag: This message contains absolutely no malicious code. Organization: The Inside Foundation Subject: Re: ZFS X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: chris-freebsd@randomcamel.net 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 20:48:26 -0000 On Wed, Sep 15, 2004 at 10:59:36AM -0500, Sam said: > "Sun engineers wondered if the 64-bit capabilities of current file systems > will continue to suffice over the next 10 to 20 years. Their answer was > no. If Moore's Law holds, in 10 to 15 years people will need a 65th bit. > As a 128-bit system, ZFS is designed to support more storage, more file > systems, more snapshots, more directory entries, and more files than can > possibly be created in the foreseeable future." > > Call me crazy, but does anyone else see this as hooey? 2^64 512B > sectors is 8192 zettabytes (zetta, exa, peta, tera, ...). [snip] > Crappy marketing articles. regardless of the marketing hyperbole, a friend of mine went to a week-long Solaris 10 beta conference put on my Sun, and says that their engineers said the extrapolations did show they'd have to go beyond 64-bit filesystems in the 10-15 year timeframe, so as long as they were going to have to rewrite everything anyway, they'd just go whole-hog and do 128-bit and add a ton of shiny features while they were at it. he also reported it worked well as advertised; I'm inclined to believe him, since he has no special love for Sun, and he was speaking directly with the engineers who developed the thing. chris ------------------------------- Chris Doherty chris [at] randomcamel.net "I think," said Christopher Robin, "that we ought to eat all our provisions now, so we won't have so much to carry." -- A. A. Milne -------------------------------