From owner-freebsd-questions@FreeBSD.ORG Sat Sep 16 09:46:23 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2F89616A407 for ; Sat, 16 Sep 2006 09:46:23 +0000 (UTC) (envelope-from LoN_Kamikaze@gmx.de) Received: from mail.gmx.net (mail.gmx.net [213.165.64.20]) by mx1.FreeBSD.org (Postfix) with SMTP id 05F3743D6D for ; Sat, 16 Sep 2006 09:46:18 +0000 (GMT) (envelope-from LoN_Kamikaze@gmx.de) Received: (qmail invoked by alias); 16 Sep 2006 09:46:17 -0000 Received: from p54A7D4DB.dip.t-dialin.net (EHLO [192.168.0.12]) [84.167.212.219] by mail.gmx.net (mp037) with SMTP; 16 Sep 2006 11:46:17 +0200 X-Authenticated: #5465401 Message-ID: <450BC7E2.2050400@gmx.de> Date: Sat, 16 Sep 2006 11:46:10 +0200 From: "[LoN]Kamikaze" Organization: Lords of Nightmare User-Agent: Thunderbird 1.5.0.7 (X11/20060915) MIME-Version: 1.0 To: shih@math.jussieu.fr References: <20060916083301.GA15083@math.jussieu.fr> In-Reply-To: <20060916083301.GA15083@math.jussieu.fr> X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Y-GMX-Trusted: 0 Cc: freebsd-questions@freebsd.org Subject: Re: FS size X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 16 Sep 2006 09:46:23 -0000 Albert Shih wrote: > Hi all > > I've read > > http://www.freebsd.org/projects/bigdisk/index.html > > and I want know actually on i386 arch is the limit of a fs is already 2 Tb > What's the situation on amd64/EMT64, can we have big fs ? something like 10 > or more TB ? There are people who use 8t partitions on i386. All you need to do is tweak some settings to allow fsck to assign enough memory for a file system check. This is possible because I think the file system is access block wise. With a block size of 4k an 8TB FS only requires an address space of 2g. I don't know anything about the UFS internals, so I cannot give you the real numbers, but they should that something aught to be technically possible.