From owner-freebsd-stable@FreeBSD.ORG Wed Jun 8 11:25:52 2011 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4C2221065670 for ; Wed, 8 Jun 2011 11:25:52 +0000 (UTC) (envelope-from matt.thyer@gmail.com) Received: from mail-ww0-f50.google.com (mail-ww0-f50.google.com [74.125.82.50]) by mx1.freebsd.org (Postfix) with ESMTP id CEBB68FC13 for ; Wed, 8 Jun 2011 11:25:51 +0000 (UTC) Received: by wwc33 with SMTP id 33so414355wwc.31 for ; Wed, 08 Jun 2011 04:25:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=7ZKCoTLN2u8m5aiu51nEjoGfApwHp31dOux+/ezsgS0=; b=AZ8BLjyKFiku6zcH0d8r6QRYygxyNAmMtxAkEywglF/+rD5feJ6Lw4XEBOImfn1SQf gLuXkH1fm/OQLdtp0Jkk3XC/B10G84fcqwHG75ltEAOh0o9KphRVH6g3bpY+0MB2309C 1SFwfx6dAePaLE6mShw+g/eDa399E+p+jyBC8= 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=t9duH33CHqJfjn1Sfa8TgQGchPcc9zXWqvNeZ0/vIfE8/drcoJEU/nqMLx9o5knvDV WhizPSoj8xiT8pM9hwf0yMaghJZ/xoWZ/MyMdRiTmfWMGjrQ/99ukAbKie6qDv65iDcA zhXVq4OLh+CRc87pdkkwcT5gLUEx0HFUW35bU= MIME-Version: 1.0 Received: by 10.216.239.67 with SMTP id b45mr4968628wer.44.1307532350667; Wed, 08 Jun 2011 04:25:50 -0700 (PDT) Received: by 10.216.54.67 with HTTP; Wed, 8 Jun 2011 04:25:50 -0700 (PDT) In-Reply-To: <201106070233.p572XI8T056329@apollo.backplane.com> References: <201106070233.p572XI8T056329@apollo.backplane.com> Date: Wed, 8 Jun 2011 20:55:50 +0930 Message-ID: From: Matt Thyer To: Matthew Dillon Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: stable@freebsd.org Subject: Re: PCIe SATA HBA for ZFS on -STABLE 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, 08 Jun 2011 11:25:52 -0000 On 7 June 2011 12:03, Matthew Dillon wrote: > The absolute cheapest solution is to buy a Sil-3132 PCIe card > (providing 2 E-SATA ports), and then connect an external port multiplier > to each port. External port multiplier enclosures typically support > 5 drives each so that would give you your 10 drives. > I've decided to avoid issues with port multiplication by going for a Supermicro AOC-USAS2-L8i and then to flash it to IT (as opposed to IR) mode to make it run as a standard non-RAID HBA. As I've got 8 x 2 TB drives for the ZFS raidz2 I'll put them all on the AOC-USAS2-L8i and save my onboard SATA-II ports for my 2 x 1TB drives for the FreeBSD O.S. and any eSATA use. Now the only remaining issue is whether to go with the Supermicro firmware or the generic Lsi Logic firmware as some have reported better performance with the version 9 Lsi Logic firmware. I'll report on my experiences (as I keep a record of the revision of my -STABLE build this should actually be useful!).