From owner-freebsd-current@FreeBSD.ORG Thu Jun 24 17:45:05 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 33B0316A4CE for ; Thu, 24 Jun 2004 17:45:05 +0000 (GMT) Received: from spider.deepcore.dk (cpe.atm2-0-53484.0x50a6c9a6.abnxx9.customer.tele.dk [80.166.201.166]) by mx1.FreeBSD.org (Postfix) with ESMTP id C991343D48 for ; Thu, 24 Jun 2004 17:45:03 +0000 (GMT) (envelope-from sos@DeepCore.dk) Received: from DeepCore.dk (sos.deepcore.dk [194.192.25.130]) by spider.deepcore.dk (8.12.11/8.12.10) with ESMTP id i5OHiXrs092707; Thu, 24 Jun 2004 19:44:38 +0200 (CEST) (envelope-from sos@DeepCore.dk) Message-ID: <40DB1301.9050902@DeepCore.dk> Date: Thu, 24 Jun 2004 19:44:33 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= User-Agent: Mozilla Thunderbird 0.5 (X11/20040329) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Eirik Oeverby References: <40DADE69.30702@DeepCore.dk> <40DAE792.1090701@anduin.net> In-Reply-To: <40DAE792.1090701@anduin.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-mail-scanned: by DeepCore Virus & Spam killer v1.4 cc: 'FreeBSD Current' cc: Daniel Eriksson Subject: Re: Multiple choices for RAID-0, best performance? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Thu, 24 Jun 2004 17:45:05 -0000 Eirik Oeverby wrote: > Søren Schmidt wrote: >> However in the not to far future this wil change *significantly*. >> ataraid is in the learning phase of using the command sequencer in the >> Promise (and Marvell) chips which will boost performance by having the >> controllers do some of the RAID work (in case of the pdc20621 chips in >> can even do HW XOR for RAID5). >> >> Needless to say that it will only work with ataraid, as this needs >> intimate knowledge of the ATA controller workings to be used effectively. > > Any chance Silicon Image SATA-RAID chipsets will be supported this way? > Some of the heftier Tyan (dual) Opteron boards use this chipset.. I hear > from various sources that it sucks, but ... Can't give up hope yet, can > I? ;) Well, the SiI chips doesn't have that kind of functionality, they are just plain and simple (and in the 3112 case broken) SATA controllers. Given the history of SiI (former CMD) and thier (S)ATA chipsets, they will need several braintransplants before they'll make a chip that can be that advanced *and* work ;) -- -Søren