From owner-freebsd-current@FreeBSD.ORG Wed Oct 17 16:43:14 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 96CE016A418 for ; Wed, 17 Oct 2007 16:43:14 +0000 (UTC) (envelope-from richardtector@thekeelecentre.com) Received: from mx0.thekeelecentre.com (mx0.thekeelecentre.com [217.206.238.167]) by mx1.freebsd.org (Postfix) with ESMTP id E235213C48D for ; Wed, 17 Oct 2007 16:43:13 +0000 (UTC) (envelope-from richardtector@thekeelecentre.com) Received: from localhost (mailfil.mx0.thekeelecentre.com [217.206.238.165]) by mx0.thekeelecentre.com (Postfix) with ESMTP id 33A4740C9; Wed, 17 Oct 2007 17:43:13 +0100 (BST) X-Virus-Scanned: by amavisd-new at mx0.thekeelecentre.com Received: from mx0.thekeelecentre.com ([217.206.238.167]) by localhost (mailfil.mx0.thekeelecentre.com [217.206.238.165]) (amavisd-new, port 10024) with ESMTP id IbXipJTdxUdD; Wed, 17 Oct 2007 17:43:10 +0100 (BST) Received: from [10.0.2.11] (82-71-32-9.dsl.in-addr.zen.co.uk [82.71.32.9]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx0.thekeelecentre.com (Postfix) with ESMTP id 2EAAE408A; Wed, 17 Oct 2007 17:43:10 +0100 (BST) Message-ID: <47163B9B.4010901@thekeelecentre.com> Date: Wed, 17 Oct 2007 17:43:07 +0100 From: Richard Tector User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: Stefan Lambrev References: <47161A42.2050306@moneybookers.com> <471636E4.90807@thekeelecentre.com> <47163ACC.1080807@moneybookers.com> In-Reply-To: <47163ACC.1080807@moneybookers.com> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms080905070108010901030409" Cc: freebsd-current@freebsd.org Subject: Re: Very slow HP 8 Internal Port SAS HBA with RAID 0, 1 on Hot Plug SAS/SATA Models (LSI SAS1068 - mpt) 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: Wed, 17 Oct 2007 16:43:14 -0000 This is a cryptographically signed message in MIME format. --------------ms080905070108010901030409 Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit Stefan Lambrev wrote: > Richard Tector wrote: >> Stefan Lambrev wrote: >>> Hi list, >>> >>> I'm having problems with the raid controller of HP ProLiant DL140 G3 >>> Server and RELENG_7 >>> >>> I have 2x 500GB SATA HDDs configured as mirror, but the write speed >>> is very slow ~7MB/s. >>> >>> I guess that there is no battery for the raid controller and the >>> write cache is off, but 7MB/s .. >>> Also there is no way to see the status of the raid from FreeBSD ? >>> >>> Any ideas how to improve this? >> >> Write cache is the most probable cause. >> You can force it on with: >> hw.mpt.enable_sata_wc=1 > This have to be put in /boot/loader.conf as I do not see such sysctl? > Anyway I'll force the write cache to be always on from the raid > configuration if this does not work. If you have the option in the RAID bios. Try that first. Failing that, yes, pop that in /boot/loader.conf, and it should do the trick. 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