From owner-freebsd-questions@FreeBSD.ORG Sat May 18 03:57:26 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id F25D68A9 for ; Sat, 18 May 2013 03:57:26 +0000 (UTC) (envelope-from ml@my.gd) Received: from mail-wi0-x22c.google.com (mail-wi0-x22c.google.com [IPv6:2a00:1450:400c:c05::22c]) by mx1.freebsd.org (Postfix) with ESMTP id 89A0BE36 for ; Sat, 18 May 2013 03:57:26 +0000 (UTC) Received: by mail-wi0-f172.google.com with SMTP id ey16so802996wid.17 for ; Fri, 17 May 2013 20:57:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=references:mime-version:in-reply-to:content-type :content-transfer-encoding:message-id:cc:x-mailer:from:subject:date :to:x-gm-message-state; bh=6b8Npg7cieBXUKzvIVz+xti/I8+022UzCHLdvONdndM=; b=mLg/g+gsGFo1DMA1rPN872b3B7L+U/IYw9WY3Li7ASdXPI/yDcsRV6vzjZr4N0BzdN lcpnVCxQofGVj85xaMxBSzChIEB8wQh/ljutDtgtOPbY/xC+h88zH9adWlusgN+u/oDC 8fWbRQW7qlXaOuI14GV/NJOuo23nLyI4OYWiTZDcFmooMuSuvDc+3cKbOZF4l/RZsjG/ HPP8dZhWbRTcUf/BK2s3L+z4+tGqatlBCeIyUsnDMnj2Jnlp4yXE9Fa3xGXv8wPiQvPm IpC5wvcx/+J1GlLLB/zeotP8laCKzRtaMAStyhaFoaaofq+M05j9sPy2rjk0uYcObuAX A+qA== X-Received: by 10.180.89.170 with SMTP id bp10mr373618wib.26.1368849445637; Fri, 17 May 2013 20:57:25 -0700 (PDT) Received: from [10.148.237.97] (25.16.90.92.rev.sfr.net. [92.90.16.25]) by mx.google.com with ESMTPSA id x13sm408540wib.3.2013.05.17.20.57.24 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 17 May 2013 20:57:24 -0700 (PDT) References: <5196B9FA.3090107@gmail.com> Mime-Version: 1.0 (1.0) In-Reply-To: <5196B9FA.3090107@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Message-Id: <73889732-5BE7-4702-96EB-09BCB128B57D@my.gd> X-Mailer: iPhone Mail (10B144) From: Damien Fleuriot Subject: Re: ZFS install on a partition Date: Sat, 18 May 2013 05:56:30 +0200 To: Joshua Isom X-Gm-Message-State: ALoCoQlPX8z9bcrx1AfKrQKq2BNTLY+kty8kg9X2qH+9XBFLTe02Oxwy9zNFyQgfGon0Thp9a2aP Cc: "freebsd-questions@freebsd.org" X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 May 2013 03:57:27 -0000 On 18 May 2013, at 01:15, Joshua Isom wrote: > Your hardware raid should be faster than ZFS raid. Don't use zfs raid bec= ause there will be no benefit. =20 Self healing much ? I wouldn't dream of dropping it for a 20mb/s performance increase from a HW c= ontroller. What if the controller derps and writes bad data ? > You'll get the performance of software raid using CPU time, along with los= t space for already backed up data. >=20 > ZFS should work fine. A lot of the tuning on the wiki page isn't needed a= nymore, so it's not too bad. The biggest thing to be careful with is upgrad= ing your zpool, every so often your boot blocks may need updated and if you f= orget, you can't boot. You won't upgrade your pool often of course. Reliab= ility shouldn't be an issue, it's FreeBSD. ZFS will make it easier to play a= round with jails, have fun and create a 1000 node beowulf on one system. >=20 > On 5/17/2013 5:24 PM, bsd@todoo.biz wrote: >> Hi, >>=20 >> I have a question regarding ZFS install on a system setup using an Intel M= odular. >>=20 >> This system runs various flavor of FreeBSD and Linux using a shared pool (= LUNs). >> These LUNs have been configured in RAID 6 using the internal controller (= LSI logic). >>=20 >> So from the OS point of view there is just a volume available. >>=20 >>=20 >> I know I should install a system using HBA and JBOD configuration - but u= nfortunately this is not an option for this server. >>=20 >> What would you advise ? >>=20 >> 1. Can I use an existing partition and setup ZFS on this partition using a= standard Zpool (no RAID). >>=20 >> 2. Should I use any other solution in order to setup this (like full ZFS i= nstall on disk using the entire pool with ZFS). >>=20 >> 3. Should I avoid using ZFS since my system is not well tuned and It woul= d be asking for trouble to use ZFS in these conditions. >>=20 >>=20 >> P.S. Stability is a must for this system - so I won't die if you answer "= 3" and tell me to keep on using UFS. >>=20 >>=20 >> Thanks. >>=20 >>=20 >> ________________________________________________ >> =C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7 >> =C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF >> BSD - BSD - BSD - BSD - BSD - BSD - BSD - BSD - >> ________________________________________________ >> =C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2=A7=C2=AB?=C2=BB=C2=A5=C2=AB?=C2=BB=C2= =A7 >> =C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2= =AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF=C2=AF >> PGP ID --> 0x1BA3C2FD >>=20 >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" >=20 > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.or= g"