From owner-freebsd-current@FreeBSD.ORG Fri Jan 19 03:28:19 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 14B5316A40F for ; Fri, 19 Jan 2007 03:28:19 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.freebsd.org (Postfix) with ESMTP id 0230F13C442 for ; Fri, 19 Jan 2007 03:28:19 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id D4DC31A4D9F; Thu, 18 Jan 2007 19:28:18 -0800 (PST) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 08407514B7; Thu, 18 Jan 2007 22:28:14 -0500 (EST) Date: Thu, 18 Jan 2007 22:28:14 -0500 From: Kris Kennaway To: "W. Josephson" Message-ID: <20070119032814.GA83278@xor.obsecurity.org> References: <20070119025156.GB77180@mero.morphisms.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="7JfCtLOvnd9MIVvH" Content-Disposition: inline In-Reply-To: <20070119025156.GB77180@mero.morphisms.net> User-Agent: Mutt/1.4.2.2i Cc: freebsd-current@freebsd.org Subject: Re: building a new fileserver X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jan 2007 03:28:19 -0000 --7JfCtLOvnd9MIVvH Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jan 18, 2007 at 09:51:56PM -0500, W. Josephson wrote: > I'd like to solicit people's opinions about configuring > CURRENT for a new fileserver that we'll be using internally. > I have only recently had hardware available for running anything > other than 6-STABLE so: >=20 > 1. We'd like to use the 16-port 3Ware 9650SE-16. > Does anyone here have experience with this card in > RAID-6 mode under FreeBSD? >=20 > 2. Any one have advice for setting up UFS+gjournal? > I've been using FFS+SU for some time on a number of machines > with filesystems up to about 1TB, but I'm not looking forward > to fsck, even background fsck, on multiple 10TB filesystems. > Does anyone here have experience with UFS+gjournal on large > filesystems? Are there any gotchas to be aware of when > configuring? Can someone describe briefly what guarantees > UFS+gjournal makes? One gotcha with gjournal is that there is apparently still at least one pretty obscure data corruption bug lurking. I see this when doing concurrent package builds on a 12 cpu system with a single gjournal data store, although I haven't run this configuration for a few months. Kris --7JfCtLOvnd9MIVvH Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFFsDrOWry0BWjoQKURAjFoAKD6Zbebie5LcVL2hhyzi6SIuxS2uwCfTl/Z qNX7C7RbTS8VojfCR6+1lQ0= =za7I -----END PGP SIGNATURE----- --7JfCtLOvnd9MIVvH--