From owner-freebsd-questions@FreeBSD.ORG Tue Feb 19 22:27:02 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 698DE56D for ; Tue, 19 Feb 2013 22:27:02 +0000 (UTC) (envelope-from bsd@todoo.biz) Received: from newmail.rmm.fr (newmail.rmm.fr [213.251.152.9]) by mx1.freebsd.org (Postfix) with ESMTP id 302CEB90 for ; Tue, 19 Feb 2013 22:27:02 +0000 (UTC) Received: from newmail.rmm.fr (newmail.rmm.fr [213.251.152.9]) by newmail.rmm.fr (Postfix) with ESMTP id ADA931603E5 for ; Tue, 19 Feb 2013 23:20:40 +0100 (CET) X-Virus-Scanned: amavisd-new 2.8.0 (20120630) at rmm.fr Received: from newmail.rmm.fr ([213.251.152.9]) by newmail.rmm.fr (newmail.rmm.fr [213.251.152.9]) (amavisd-new, port 10024) with ESMTP id QKW5J5rSw4Ba for ; Tue, 19 Feb 2013 23:20:39 +0100 (CET) Received: from newmail.rmm.fr (newmail.rmm.fr [87.98.206.99]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: hidden) by newmail.rmm.fr (Postfix) with ESMTPSA id D5AAA1603DA for ; Tue, 19 Feb 2013 23:20:39 +0100 (CET) From: "bsd@todoo.biz" Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Subject: ZFS + iSCSI architecture Message-Id: <93B2D1C4-8887-45F9-9939-A099AC5E3DA0@todoo.biz> Date: Tue, 19 Feb 2013 23:20:41 +0100 To: Liste FreeBSD Mime-Version: 1.0 (Mac OS X Mail 6.2 \(1499\)) X-Mailer: Apple Mail (2.1499) 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: Tue, 19 Feb 2013 22:27:02 -0000 Hello, I am about to start deploying a large system (about 18 To which can grow = up to 36 To) based on a big Intel platform with lot's of fancy features = to have turbo boosted platform (ZIL on SSD + system on dongle if I go = for FreeNAS). Since I want to move on quite fast I might decide to use = FreeNAS in it's latest version.=20 The idea behind all that was to grant 5 or six critical servers access = to the NAS so that they can take advantage of :=20 1. space available on the NAS 2. ability of the NAS to use ZFS and of clients to support this file = system (including snapshots)=20 3. Access the server using iSCSI (at least this is what I initially = planned).=20 4. Mount part of their filesystem using data stored on the SAN (like = /usr/local/ or other parts of the system).=20 The server accessing the data will be of two types :=20 1. 2 x Ubuntu server 10.04 LTS=20 2. 4 x FreeBSD (mainly 8 and 9) with jail configured=20 I have started reading about iSCSI and potential problems with FreeBSD.=20= So my main questions would be :=20 =95 Should I go for iSCSI ?=20 =95 Should I rather choose / prefer NFS ?=20 =95 Should I export a Volume as UFS rather than ZFS (is ZFS supported as = a target) ? The main idea is stability, redundancy of data and ease of maintenance = (in a headless FreeBSD / Linux world) before anything else !=20 That's the big pictures, if you have any pointers, advise, they are all = welcome.=20 It is quite late where I leave, so I will reply to posts in 8 to 10 = hours, but I hope to have enough answer(s) to start an interesting = thread (as I think this question is very interesting and not so clearly = explained (at least in my mind))=85=20 Thx very much for your infos and feedback.=20 ________________________________________________ =AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?= =BB=A7=AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?=BB=A7 =AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF= =AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF BSD - BSD - BSD - BSD - BSD - BSD - BSD - BSD - ________________________________________________ =AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?= =BB=A7=AB?=BB=A5=AB?=BB=A7=AB?=BB=A5=AB?=BB=A7 =AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF= =AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF=AF PGP ID --> 0x1BA3C2FD