From owner-freebsd-questions@FreeBSD.ORG Wed Sep 3 12:59:13 2003 Return-Path: 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 CE18E16A4BF; Wed, 3 Sep 2003 12:59:13 -0700 (PDT) Received: from silver.he.iki.fi (helenius.fi [193.64.42.241]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8C79B43FA3; Wed, 3 Sep 2003 12:59:07 -0700 (PDT) (envelope-from pete@he.iki.fi) Received: from he.iki.fi (h81.vuokselantie10.fi [193.64.42.129]) by silver.he.iki.fi (8.12.9/8.11.4) with ESMTP id h83Jwi2k013456; Wed, 3 Sep 2003 22:58:44 +0300 (EEST) (envelope-from pete@he.iki.fi) Message-ID: <3F5647F3.5080502@he.iki.fi> Date: Wed, 03 Sep 2003 22:58:43 +0300 From: Petri Helenius User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Geoff Buckingham References: <20030902224136.GA98381@dan.emsphone.com> <20030903110615.GA25233@chuggalug.clues.com> In-Reply-To: <20030903110615.GA25233@chuggalug.clues.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-hackers@freebsd.org cc: freebsd-performance@freebsd.org cc: Dan Nelson cc: freebsd-questions@freebsd.org cc: Max Clark Subject: Re: 20TB Storage System X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Sep 2003 19:59:14 -0000 Geoff Buckingham wrote: >>- This is a big problem (no pun intended), my smallest requirement is still >>5TB... what would you recommend? The smallest file on the storage will be >>500MB. >> >> >> >If you files are all going this large I imagine you should look carefully at >what you do with inodes, block and cluster sizes > > fsck problem should be gone with less inodes and less blocks since if I read the code correctly, memory is consumed according to used inodes and blocks so having like 20000 inodes and 64k blocks should allow you to build 5-20T filesystem and actually fsck them. Pete