From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262194AbUBXQKx (ORCPT ); Tue, 24 Feb 2004 11:10:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262293AbUBXQIv (ORCPT ); Tue, 24 Feb 2004 11:08:51 -0500 Received: from 81-5-136-19.dsl.eclipse.net.uk ([81.5.136.19]:46289 "EHLO vlad.carfax.org.uk") by vger.kernel.org with ESMTP id S262270AbUBXQGN (ORCPT ); Tue, 24 Feb 2004 11:06:13 -0500 Date: Tue, 24 Feb 2004 16:06:11 +0000 From: Hugo Mills To: Patrick Petermair Cc: linux-kernel@vger.kernel.org Subject: Re: Adaptec 1210SA SATA Controller Performance Message-ID: <20040224160611.GE18494@carfax.org.uk> Mail-Followup-To: Hugo Mills , Patrick Petermair , linux-kernel@vger.kernel.org References: <403B5B47.2030907@petermair.at> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="qFgkTsE6LiHkLPZw" Content-Disposition: inline In-Reply-To: <403B5B47.2030907@petermair.at> X-GPG-Fingerprint: B997 A9F1 782D D1FD 9F87 5542 B2C2 7BC2 1C33 5860 X-GPG-Key: 1C335860 X-Parrot: It is no more. It has joined the choir invisible. X-IRC-Nicks: hugo darksatanic User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --qFgkTsE6LiHkLPZw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Feb 24, 2004 at 03:10:15PM +0100, Patrick Petermair wrote: > Yesterday I've setup a server with Adaptec's 1210SA SATA Controller and > 2 SATA disks. According to the kernel changelog the controller is > supported since 2.6.2 > > I've installed Debian on an IDE disk, built a 2.6.3 kernel with > CONFIG_SCSI_SATA_SIL, rebooted and the kernel detected the controller > plus both SATA disks (sda, sdb). As the next step I wanted to create a > software raid 1 with the 2 SATA disks. Because it took mdadm forever to > finish, I checked /proc/mdstat and saw a progress bar with a rate of 12MB/s! > > Even my oldest IDE disk is faster than this. Is there a way to tweak the > SATA controller/disk with some kernel-options or is the driver not > providing more speed? You don't say what make of disk these are. It may be that you've fallen foul of the Seagate/SiI erratum, which (as far as I can tell) still kills performance. I have a 120GiB Seagate disk attached to a SiI3112 controller, and I'm lucky if I get 12MiB/s with the IDE-layer driver. I haven't tried the libata driver yet. I'm not too worried about that set-up, because I don't need massive performance off that disk anyway, but something faster might be nice. :) Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 1C335860 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Jazz is the sort of music where no-one plays anything the --- same way once. --qFgkTsE6LiHkLPZw Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAO3ZzssJ7whwzWGARAl/1AJ0Uk6xwuHpvl1FqQnqubuQMH8Hy8gCgp3uV 0djq4Ha+1advsPBocLyd/lI= =S88I -----END PGP SIGNATURE----- --qFgkTsE6LiHkLPZw--