From owner-freebsd-stable@FreeBSD.ORG Mon Jan 25 18:03:00 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A5B521065679; Mon, 25 Jan 2010 18:03:00 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: from mail-yw0-f197.google.com (mail-yw0-f197.google.com [209.85.211.197]) by mx1.freebsd.org (Postfix) with ESMTP id 251B78FC0C; Mon, 25 Jan 2010 18:02:59 +0000 (UTC) Received: by ywh35 with SMTP id 35so2926521ywh.7 for ; Mon, 25 Jan 2010 10:02:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=nZtf3l4PCbMY400oXJwuloFDENM2ZdBfDGqzTYpxpm8=; b=rYZu0wav4efSK1MEUAd3tPW8fI9bFybJCPS2kISQ1m6hRinY1X8wDU7FxgZbA6YeST dNftvcTu0aBtzeH+S1gmiByDcOY+dn9iRcmcH/ZzPw1f+PBWIaT2WpiHgQhem50QuRdQ z3TshhsoiainWblREgVwBnixzWm4q1sSpQYDQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=CRhUR5DCk0bSfYEo88AX2XIqcuJoVI/kjNBON5laZmfQdCz3PPexzXqPcIB4YJXypa MeY/Vjp4SuPfjD4LhlBjxvBytIfLOkzYWClMpThWU5h4eTqClDnR/7WT0n+LPSL4Lsw6 BPhybnwnYJTCzKZTopDB8htoq0o1pl7psznUw= MIME-Version: 1.0 Received: by 10.100.200.9 with SMTP id x9mr8457030anf.76.1264442578767; Mon, 25 Jan 2010 10:02:58 -0800 (PST) In-Reply-To: <4B5DD7A2.4000101@FreeBSD.org> References: <4B5DD7A2.4000101@FreeBSD.org> Date: Mon, 25 Jan 2010 20:02:58 +0200 Message-ID: From: Dan Naumov To: Alexander Motin Content-Type: text/plain; charset=ISO-8859-1 Cc: sub.mesa@gmail.com, freebsd-stable@freebsd.org, Pete French , freebsd-questions@freebsd.org, freebsd-fs@freebsd.org, wonslung@gmail.com, bfriesen@simple.dallas.tx.us, Artem Belevich Subject: Re: 8.0-RELEASE/amd64 - full ZFS install - low read and write disk performance X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Jan 2010 18:03:00 -0000 On Mon, Jan 25, 2010 at 7:40 PM, Alexander Motin wrote: > Artem Belevich wrote: >> aoc-sat2-mv8 was somewhat slower compared to ICH9 or LSI1068 >> controllers when I tried it with 6 and 8 disks. >> I think the problem is that MV8 only does 32K per transfer and that >> does seem to matter when you have 8 drives hooked up to it. I don't >> have hard numbers, but peak throughput of MV8 with 8-disk raidz2 was >> noticeably lower than that of LSI1068 in the same configuration. Both >> LSI1068 and MV2 were on the same PCI-X bus. It could be a driver >> limitation. The driver for Marvel SATA controllers in NetBSD seems a >> bit more advanced compared to what's in FreeBSD. > > I also wouldn't recommend to use Marvell 88SXx0xx controllers now. While > potentially they are interesting, lack of documentation and numerous > hardware bugs make existing FreeBSD driver very limited there. > >> I wish intel would make cheap multi-port PCIe SATA card based on their >> AHCI controllers. > > Indeed. Intel on-board AHCI SATA controllers are fastest from all I have > tested. Unluckily, they are not producing discrete versions. :( > > Now, if discrete solution is really needed, I would still recommend > SiI3124, but with proper PCI-X 64bit/133MHz bus or built-in PCIe x8 > bridge. They are fast and have good new siis driver. > >> On Mon, Jan 25, 2010 at 3:29 AM, Pete French >> wrote: >>>> I like to use pci-x with aoc-sat2-mv8 cards or pci-e cards....that way you >>>> get a lot more bandwidth.. >>> I would goalong with that - I have precisely the same controller, with >>> a pair of eSATA drives, running ZFS mirrored. But I get a nice 100 >>> meg/second out of them if I try. My controller is, however on PCI-X, not >>> PCI. It's a shame PCI-X appears to have gone the way of the dinosaur :-( > > -- > Alexander Motin Alexander, since you seem to be experienced in the area, what do you think of these 2 for use in a FreeBSD8 ZFS NAS: http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=H http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=H&IPMI=Y - Sincerely, Dan Naumov