From owner-freebsd-current@FreeBSD.ORG Wed Oct 17 16:23:16 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 63BA116A417 for ; Wed, 17 Oct 2007 16:23:16 +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 EAB4713C465 for ; Wed, 17 Oct 2007 16:23:10 +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 B09F34179; Wed, 17 Oct 2007 17:23:08 +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 2z94nQY+H9qJ; Wed, 17 Oct 2007 17:23:06 +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 AC7BF408E; Wed, 17 Oct 2007 17:23:05 +0100 (BST) Message-ID: <471636E4.90807@thekeelecentre.com> Date: Wed, 17 Oct 2007 17:23:00 +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> In-Reply-To: <47161A42.2050306@moneybookers.com> Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms070809000004030101090604" 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 16:23:16 -0000 This is a cryptographically signed message in MIME format. --------------ms070809000004030101090604 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 See: http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/dev/mpt/mpt.c?rev=1.42;content-type=text%2Fx-cvsweb-markup Hope that helps. 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