From owner-freebsd-stable@FreeBSD.ORG Wed Jun 1 08:39:36 2011 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 86D08106566B for ; Wed, 1 Jun 2011 08:39:36 +0000 (UTC) (envelope-from daniel@digsys.bg) Received: from smtp-sofia.digsys.bg (smtp-sofia.digsys.bg [193.68.3.230]) by mx1.freebsd.org (Postfix) with ESMTP id 122EB8FC1D for ; Wed, 1 Jun 2011 08:39:35 +0000 (UTC) Received: from dcave.digsys.bg (dcave.digsys.bg [192.92.129.5]) (authenticated bits=0) by smtp-sofia.digsys.bg (8.14.4/8.14.4) with ESMTP id p518dQIZ065136 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Wed, 1 Jun 2011 11:39:32 +0300 (EEST) (envelope-from daniel@digsys.bg) Message-ID: <4DE5FABE.20905@digsys.bg> Date: Wed, 01 Jun 2011 11:39:26 +0300 From: Daniel Kalchev User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.17) Gecko/20110519 Thunderbird/3.1.10 MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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, 01 Jun 2011 08:39:36 -0000 On 01.06.11 09:34, TJ Varghese wrote: > >> SuperMicro AOC-USAS2-L8i works exceptionally well. These are 8-port HBAs >> using the LSI1068 chipset, supported by the mpt(4) driver. Support 3 Gpbs >> SATA/SAS, using multi-lane cables (2 connectors on the card, each connector >> supports 4 SATA ports), hot-plug, hot-swap. > The USAS2 (6Gbps) is supported by the mps driver (on -CURRENT, not sure if > it's in 8-STABLE yet). Perhaps you're referring to the earlier USAS which > does 3Gbps and is supported by the mpt driver. > One should also bear in mind, that the 1068e based controllers (AOC-USAS-L8i) apparently have 2TB drive size limitation, therefore cannot be used with current 3TB (and who knows what capacities by the end of the year) drives. Otherwise, this is an well supported, high performance, stable and relatively cheap HBA to consider. The SAS2 (LSI 2008 based) HBAs are also good, despite some firmware issues (mostly are related to use with SAS expanders) and do not have obvious limitations yet. These might be just a bit more expensive, but my Supermicro supplier advised delivery times for the older SAS (3Gbps) versions would be much longer. Daniel