From owner-freebsd-hardware@FreeBSD.ORG Mon Dec 10 17:54:45 2007 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4C4C116A417 for ; Mon, 10 Dec 2007 17:54:45 +0000 (UTC) (envelope-from michael@fuckner.net) Received: from dedihh.fuckner.net (dedihh.fuckner.net [81.209.183.161]) by mx1.freebsd.org (Postfix) with ESMTP id 0CA8913C442 for ; Mon, 10 Dec 2007 17:54:44 +0000 (UTC) (envelope-from michael@fuckner.net) Received: from localhost (localhost [127.0.0.1]) by dedihh.fuckner.net (Postfix) with ESMTP id EE50761D07; Mon, 10 Dec 2007 18:54:43 +0100 (CET) X-Virus-Scanned: amavisd-new at fuckner.net Received: from dedihh.fuckner.net ([127.0.0.1]) by localhost (dedihh.fuckner.net [127.0.0.1]) (amavisd-new, port 10024) with SMTP id aoJyKgrcyH33; Mon, 10 Dec 2007 18:54:40 +0100 (CET) Received: from c64.rebootking.de (e176183173.adsl.alicedsl.de [85.176.183.173]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by dedihh.fuckner.net (Postfix) with ESMTP id 3886F61D06; Mon, 10 Dec 2007 18:54:40 +0100 (CET) Message-ID: <475D7D60.4040701@fuckner.net> Date: Mon, 10 Dec 2007 18:54:40 +0100 From: Michael Fuckner User-Agent: Thunderbird 2.0.0.9 (X11/20071116) MIME-Version: 1.0 To: Lan Tran References: <475D7866.1070803@hangwithme.com> In-Reply-To: <475D7866.1070803@hangwithme.com> X-Enigmail-Version: 0.95.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-hardware@freebsd.org Subject: Re: large disk > 8 TB X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 10 Dec 2007 17:54:45 -0000 Lan Tran wrote: > I have a Dell PERC 6/E controller connected to an external Dell MD1000 > storage, which I set up RAID 6 for. The RAID BIOS reports 8.5 TB. I > installed 7BETA4 amd64 and Sysinstall/dmesg.boot detects this correctly: > mfid1: on mfi1 > mfid1: 8578560MB (17568890880 sectors) RAID volume 'raid6' is optimal" > > However, after I created a zfs zpool on this device it only shows 185 > GB. # zpool create tank /dev/mfid1s1d > # zpool list > NAME SIZE USED AVAIL CAP HEALTH ALTROOT > tank 185G 111K 185G 0% ONLINE - > > also with 'dh': > # df -h tank > Filesystem Size Used Avail Capacity Mounted on > tank 182G 0B 182G 0% /tank > The main purpose of ZFS is doing Software raid (which is even faster than HW Raid nowadays). You should export all disks seperately to the OS- and then you don't have the 4GB limit wrapping the size to 185GB. Regards, Michael