From owner-freebsd-questions@FreeBSD.ORG Thu Jan 27 21:57:17 2005 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 23F3416A4CE for ; Thu, 27 Jan 2005 21:57:17 +0000 (GMT) Received: from chello084114137224.1.15.vie.surfer.at (chello084114137224.1.15.vie.surfer.at [84.114.137.224]) by mx1.FreeBSD.org (Postfix) with SMTP id 77BA643D46 for ; Thu, 27 Jan 2005 21:57:15 +0000 (GMT) (envelope-from 4711@chello.at) Received: (qmail 68409 invoked from network); 27 Jan 2005 21:57:14 -0000 Received: from matrix010.matrix.net (HELO localhost) (192.168.123.10) by ns.matrix.net with SMTP; 27 Jan 2005 21:57:14 -0000 From: Christian Hiris <4711@chello.at> To: freebsd-questions@freebsd.org, Chad Morland Date: Thu, 27 Jan 2005 22:56:31 +0100 User-Agent: KMail/1.7.2 References: <8ca9329050127121428870c21@mail.gmail.com> In-Reply-To: <8ca9329050127121428870c21@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1786940.dTjWZyVUIr"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Message-Id: <200501272257.13719.4711@chello.at> Subject: Re: RAID1, a failed disk and performance 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: Thu, 27 Jan 2005 21:57:17 -0000 --nextPart1786940.dTjWZyVUIr Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Thursday 27 January 2005 21:14:21, Chad Morland wrote: > What happens in terms of performance when a drive in a RAID1 system > fails? Will disk access be slower because it attempts to read/write to > a failed disk or will performance be faster because it doesn't need to > do half the work it usually does? I couldn't really find any online > resources that deal with performance levels when there are failed > drives present in a RAID array. If you are interested in gmirror software-raid performance, I put some bonn= ie=20 benchmark data online. I run the benchmark on a cheap none-raid=20 Promise-Ultra-133-TX2 aka PDC20269, which costs about 25 Euros: http://members.chello.at/freebsd-5.3/bonnie-gmirror/summary http://members.chello.at/freebsd-5.3/bonnie-gmirror/detail Cheers, ch=20 =2D-=20 Christian Hiris <4711@chello.at> | OpenPGP KeyID 0x3BCA53BE=20 OpenPGP-Key at hkp://wwwkeys.eu.pgp.net and http://pgp.mit.edu --nextPart1786940.dTjWZyVUIr Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQBB+WO509WjGjvKU74RAg7cAJ9YH1PlOV7IrqEjcW7o2L1iGEiiSQCfWrks XDNq3/R6IBv95y7G9g7A0fk= =L9dD -----END PGP SIGNATURE----- --nextPart1786940.dTjWZyVUIr--