From owner-freebsd-stable@FreeBSD.ORG Wed Nov 18 02:25:38 2009 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 E41C6106566B for ; Wed, 18 Nov 2009 02:25:38 +0000 (UTC) (envelope-from artemb@gmail.com) Received: from mail-iw0-f190.google.com (mail-iw0-f190.google.com [209.85.223.190]) by mx1.freebsd.org (Postfix) with ESMTP id A85198FC18 for ; Wed, 18 Nov 2009 02:25:38 +0000 (UTC) Received: by iwn28 with SMTP id 28so570331iwn.3 for ; Tue, 17 Nov 2009 18:25:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type:content-transfer-encoding; bh=+vKwjHsbUDhpZkm7H/sBc3KkXNHQH+wrmB+kE8jWwnI=; b=lTb8rG+U5tlkZPKx9dPtbqTgAY50cYJeHs+/RU6T+jscmnKv2FHB1j77fEyoD+P1XL qjLhft1A1iZeLLjewIY8P8ocOhsokoCyOlgRdypn30lUJb3WxkeuTx3IR2B8L1Eir4/I lRRN8dBOAzv/CTQs4uALCCO51MUmwre5Ura6s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=xCIH6niE9ke8JOxihjW6pF8nhpcM5zPIBeSR2c5Sfy9at/7Y4G9x+BvdRPb0xoYz0v nLUElq0/qI8/zj5scojxTZV4oqWdVlh359Zh3NShc+KwM8nDTyoX3+/bA8WlMwSDz0Q9 zoVfmaRgcEZblnZfLFp/g0TV5tkAbqiVlye+I= MIME-Version: 1.0 Sender: artemb@gmail.com Received: by 10.231.153.69 with SMTP id j5mr944233ibw.33.1258511137719; Tue, 17 Nov 2009 18:25:37 -0800 (PST) In-Reply-To: References: Date: Tue, 17 Nov 2009 18:25:37 -0800 X-Google-Sender-Auth: ed49897f1181b138 Message-ID: From: Artem Belevich To: Freddie Cash Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: FreeBSD Stable Subject: Re: Support for SAS/SATA non-RAID adapters 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: Wed, 18 Nov 2009 02:25:39 -0000 In general, I've found following page very informative about what's availab= le: http://www.hardforums.com/showthread.php?t=3D1413050 I've also tried AOC-SAT2-MV8: http://www.supermicro.com/products/accessories/addon/AOC-SAT2-MV8.cfm It's based on Marvell 88sx8061 chipset. Technically it is supported by FreeBSD, but I'd rather stay away from it at least for now. The main issue is that the largest transfer size is 32K. ZFS does push this card hard and under load this card showed noticeably slower transfer rate than LSI1068 under the same circumstances. Folks on zfs-discuss list also mentioned issues with hot-swap on this card on controller level. The somewhat better news is that NetBSD does seem to have much better driver for this marvell chip. If someone gets to port it to FreeBSD, the card may be pretty decent choice for those who have PCI-X slot on-board. --Artem On Tue, Nov 17, 2009 at 6:12 PM, Artem Belevich wrote: >> =A0LSI SAS 3080X-R =A0 =A08-port SATA/SATA PCI-X > > This one uses LSI1068 chip which is supported by mpt driver. I'm using > motherboard with an on-board equivalent of this and don't have much to > complain about. I did see some CRC errors with SATA drives in 3Gbps > mode, but those went away after updating firmware to 1.29.0.0. I've > seen some comments on zfs-discuss mailing list that -IR variant of the > firmware (the one that provides RAID0/1 capabilities) does have some > stability issues and recommended going with simpler -IT version (just > pass-through disks). > > --Artem >