From owner-freebsd-questions@FreeBSD.ORG Wed Feb 9 15:38:19 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C02A01065672 for ; Wed, 9 Feb 2011 15:38:19 +0000 (UTC) (envelope-from a.spinella@rfc1925.net) Received: from joy.rfc1925.net (host10-102-static.12-87-b.business.telecomitalia.it [87.12.102.10]) by mx1.freebsd.org (Postfix) with ESMTP id 125AF8FC17 for ; Wed, 9 Feb 2011 15:38:18 +0000 (UTC) Received: from joy.rfc1925.net (localhost [127.0.0.1]) by joy.rfc1925.net (Postfix) with ESMTP id 8C622125572 for ; Wed, 9 Feb 2011 16:21:37 +0100 (CET) X-Virus-Scanned: amavisd-new at rfc1925.net Received: from joy.rfc1925.net ([127.0.0.1]) by joy.rfc1925.net (joy.rfc1925.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id bgcBxxiKBgMq for ; Wed, 9 Feb 2011 16:21:28 +0100 (CET) Received: from LSD25.communicationvalley.it (unknown [194.246.127.212]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: a.spinella@rfc1925.net) by joy.rfc1925.net (Postfix) with ESMTPSA id A5605125579 for ; Wed, 9 Feb 2011 16:21:27 +0100 (CET) Message-ID: <4D52B0F6.9000006@rfc1925.net> Date: Wed, 09 Feb 2011 16:21:26 +0100 From: "$witch" User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.9.2.13) Gecko/20101214 Thunderbird/3.1.7 MIME-Version: 1.0 To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: ZFS over RAID6 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Feb 2011 15:38:19 -0000 hi, having made a considerable amount of pre-research am now asking your mind about my goal. enviroment : a FreeBSD (ranging from 6.x to 8.1) web-farm (a couple of links and a dozen of devices/servers) goal : share (in R/W) some dirs between various hosts via NFS; such dirs must be in something that is error-proof. considerations : at lower level feel RAID6 meet my requirements (i love something that can face a double hw fault) while at upper level ZFS looks very nice so am looking for such a combination. status : as now had found some ADPTEC, ARECA and 3WARE adapters that look reasonable but controller is not all; i need also 8 (+ 2 spare) HDs and a case where to keep them. so had extended research to 8HD cases with RAID6 capabilities. again a few manufacturer seem to have suitable boxes as **MGBurly8VRe ( http://www.burlystorage.com/ccp0-prodshow/MGBurly8VRe.html ) and ARC-5040 ( http://www.areca.com.tw/products/esatafirewire800iscsiaoeusb.htm ) questions : a) do you feel that combination NFS over ZFS over RAID6 a good choice or just a complicated exercise leading nowhere? b) do you feel suitable the listed hw ? [ one | both | none ] c) do you know something "better" that lead to an overall expense not bigger than 2.5 K euro? (had seen some ADAPTEC over 4K euro that seem nice but expensive for a test) thank you Alessandro