From owner-freebsd-stable@FreeBSD.ORG Fri Dec 9 09:31:11 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 413E916A42F for ; Fri, 9 Dec 2005 09:31:11 +0000 (GMT) (envelope-from stijn@pcwin002.win.tue.nl) Received: from kweetal.tue.nl (kweetal.tue.nl [131.155.3.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1D2C443D62 for ; Fri, 9 Dec 2005 09:31:00 +0000 (GMT) (envelope-from stijn@pcwin002.win.tue.nl) Received: from localhost (localhost [127.0.0.1]) by kweetal.tue.nl (Postfix) with ESMTP id E3B5313BA0A; Fri, 9 Dec 2005 10:30:55 +0100 (CET) Received: from kweetal.tue.nl ([127.0.0.1]) by localhost (kweetal.tue.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 04972-02-2; Fri, 9 Dec 2005 10:30:54 +0100 (CET) Received: from umta.win.tue.nl (umta.win.tue.nl [131.155.71.100]) by kweetal.tue.nl (Postfix) with ESMTP id 9286513B896; Fri, 9 Dec 2005 10:30:54 +0100 (CET) Received: from pcwin002.win.tue.nl (pcwin002 [131.155.71.72]) by umta.win.tue.nl (Postfix) with ESMTP id 8DC9931401C; Fri, 9 Dec 2005 10:30:54 +0100 (CET) Received: by pcwin002.win.tue.nl (Postfix, from userid 1001) id 7EE2040BA; Fri, 9 Dec 2005 10:30:54 +0100 (CET) Date: Fri, 9 Dec 2005 10:30:54 +0100 From: Stijn Hoop To: secmgr Message-ID: <20051209093054.GF912@pcwin002.win.tue.nl> References: <20051208001857.68ac4fef.torfinn.ingolfsen@broadpark.no> <20051208133100.GC912@pcwin002.win.tue.nl> <20051208194915.GC948@unixpages.org> <4398CA29.3070602@jim-liesl.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="at6+YcpfzWZg/htY" Content-Disposition: inline In-Reply-To: <4398CA29.3070602@jim-liesl.org> User-Agent: Mutt/1.4.2.1i X-Bright-Idea: Let's abolish HTML mail! X-Virus-Scanned: amavisd-new at tue.nl Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 6.0 as storage server with raid5? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Dec 2005 09:31:11 -0000 --at6+YcpfzWZg/htY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 08, 2005 at 05:04:57PM -0700, secmgr wrote: > Whatever you do, don't complain about it on this list, or you'll just be= =20 > told that if you really wanted raid, you should be running SCSI disks=20 > and a raid adapter. They may allow that 3ware does ok, but no ATA drive= =20 > should ever be relied on and even s/w raid on scsi is only for ignorant= =20 > lusers who are too cheap to do the "right thing". > Those who think I run to hyperbole need only visit the archives. I know what you mean but I think this write-up is a bit too harsh. As long as the goal is to get _as reliable as possible_ without spending too much money, I think software RAID has its niche. Besides, I've seen a few hardware RAID controllers having issues themselves (and they weren't the cheapest ones available either). > One can only hope that gvinum actually works in 6 vs the buggy and=20 > incomplete alpha code that shipped in 5.x. Having a man page is nice,=20 > but I'd rather have a raid 5 set that didn't panic the system and=20 > corrupt the set when it lost a drive (and this with modern scsi drives=20 > and adapter). I haven't seen this (luckily!). I do know that sometime in 5.x there was a RAID-5 bug in gvinum but then again the whole vinum/gvinum transition was pretty dodgy back then. This is why I waited until 6.x to migrate. > I'd strongly suggest anyone using GEOM raid to do some=20 > fault insertion testing of their setup prior to actually relying on it. I did. It worked. --Stijn --=20 There are of course many problems connected with life, of which some of the most popular are 'Why are people born?', 'Why do they die?', and `Why do they spend so much of the intervening time wearing digital watches?' -- Douglas Adams, "The Hitchhikers Guide To The Galaxy" --at6+YcpfzWZg/htY Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDmU7OY3r/tLQmfWcRAryUAJoCHOjyFMKZrrq0/yPzdmcOj0xq0QCfbjMB Yo6ANci/i2latxjOZlUt3WY= =R8BN -----END PGP SIGNATURE----- --at6+YcpfzWZg/htY--