From owner-freebsd-hardware@FreeBSD.ORG Tue Dec 11 22:00:32 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 0243516A41A for ; Tue, 11 Dec 2007 22:00:32 +0000 (UTC) (envelope-from freebsd-hardware@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 8BC9213C46B for ; Tue, 11 Dec 2007 22:00:31 +0000 (UTC) (envelope-from freebsd-hardware@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1J2D9I-0006mJ-LI for freebsd-hardware@freebsd.org; Tue, 11 Dec 2007 22:00:20 +0000 Received: from 78-0-72-222.adsl.net.t-com.hr ([78.0.72.222]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 11 Dec 2007 22:00:20 +0000 Received: from ivoras by 78-0-72-222.adsl.net.t-com.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 11 Dec 2007 22:00:20 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-hardware@freebsd.org From: Ivan Voras Date: Tue, 11 Dec 2007 22:59:59 +0100 Lines: 62 Message-ID: References: <475D7866.1070803@hangwithme.com> <475D7D60.4040701@fuckner.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigD80C99E9C3C3489AB32D9C26" X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 78-0-72-222.adsl.net.t-com.hr User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) In-Reply-To: <475D7D60.4040701@fuckner.net> X-Enigmail-Version: 0.95.5 Sender: news Cc: freebsd-fs@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: Tue, 11 Dec 2007 22:00:32 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD80C99E9C3C3489AB32D9C26 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Michael Fuckner wrote: > 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 correctl= y: >> 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 ALTROO= T >> 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 >> >=20 > The main purpose of ZFS is doing Software raid (which is even faster > than HW Raid nowadays). >=20 > You should export all disks seperately to the OS- and then you don't > have the 4GB limit wrapping the size to 185GB. This is the wrong way around. Why would something wrap drive sizes at a 32-bit limit? The driver and the GEOM systems are 64-bit clean, if this is a problem in ZFS, it's a serious one. I don't have the drive capacity to create a large array, but I assume someone has tested ZFS on large arrays (Pawel?) Can you run "diskinfo -v " on the large array (the 8.5 TB one) and verify the system sees it all? --------------enigD80C99E9C3C3489AB32D9C26 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHXwhlldnAQVacBcgRAvWyAKCHLAGhCJO0WeBizgO6PFOUuV2NHwCfW5g+ ek/ajmLzawKHHUNjwy4Rm80= =7EHk -----END PGP SIGNATURE----- --------------enigD80C99E9C3C3489AB32D9C26--