From owner-freebsd-hackers@FreeBSD.ORG Tue Sep 30 08:46:00 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 5C8EB525 for ; Tue, 30 Sep 2014 08:46:00 +0000 (UTC) Received: from eu1sys200aog122.obsmtp.com (eu1sys200aog122.obsmtp.com [207.126.144.153]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id AD90A313 for ; Tue, 30 Sep 2014 08:45:59 +0000 (UTC) Received: from mail-wg0-f45.google.com ([74.125.82.45]) (using TLSv1) by eu1sys200aob122.postini.com ([207.126.147.11]) with SMTP ID DSNKVCptrOGz+YiV7QLEYC64AlgitTLiBo3F@postini.com; Tue, 30 Sep 2014 08:45:59 UTC Received: by mail-wg0-f45.google.com with SMTP id m15so1894770wgh.4 for ; Tue, 30 Sep 2014 01:45:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:message-id:to:subject:reply-to; bh=aIAgGXCBOfQPwcoIfRIcXOlf7W9LSb9IHmKVtMTqgb8=; b=XqRIp5AvZZzeljaL89PaA6uU2nVtgudIWu/XNFHKZp0i7BINrlhg36Bv859t4N9rNR AyLwom8Ss6ZrjT1RwpJyzDpzMk0l+AhW69gJ+/kxWqOIA3CT7SEzAqm4FcKv3RdHxzjZ ycoiIqgtrt8UsGBtIIQ1MaJwfUdPIFCA/vEB+OPmyWDIr/+X48SsN1oMR7Hi9RTUmL8Y f1bPt8XvGJTdTiz+Vr2BJXILRVujov02HKspMpyh9OHdRy4HNxJr08OqrZx4rqYMu3Ne hTlrM71RKDGQEl/x88TfZCq87Y6vEBG/RHb9xvfmjIMHUVpWilPtG44yEA2IljNvRJHI 2fgw== X-Gm-Message-State: ALoCoQlaL6/zoXYMf13xL5CFLYSNYsxNR9w0jawPXJRW9Cw6w9KQFpS71KAEavtr3iUSU2oDriNjsXFtT97LYlRoumJI/yYBf4aJaG/2WVt70FIXl/SGtbYHCH1TVloJi6e+RFXmAQTdD9G1NsnvzoZVh4Tn62ZZ9g== X-Received: by 10.180.97.98 with SMTP id dz2mr4058270wib.26.1412066732621; Tue, 30 Sep 2014 01:45:32 -0700 (PDT) X-Received: by 10.180.97.98 with SMTP id dz2mr4058253wib.26.1412066732511; Tue, 30 Sep 2014 01:45:32 -0700 (PDT) Received: from mech-as221.men.bris.ac.uk (mech-as221.men.bris.ac.uk. [137.222.187.221]) by mx.google.com with ESMTPSA id t1sm14384135wiy.8.2014.09.30.01.45.31 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 30 Sep 2014 01:45:32 -0700 (PDT) Received: from mech-as221.men.bris.ac.uk (localhost [127.0.0.1]) by mech-as221.men.bris.ac.uk (8.14.9/8.14.9) with ESMTP id s8U8jUYU079242 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Tue, 30 Sep 2014 09:45:30 +0100 (BST) (envelope-from mexas@mech-as221.men.bris.ac.uk) Received: (from mexas@localhost) by mech-as221.men.bris.ac.uk (8.14.9/8.14.9/Submit) id s8U8jUTa079241 for freebsd-hackers@freebsd.org; Tue, 30 Sep 2014 09:45:30 +0100 (BST) (envelope-from mexas) Date: Tue, 30 Sep 2014 09:45:30 +0100 (BST) From: Anton Shterenlikht Message-Id: <201409300845.s8U8jUTa079241@mech-as221.men.bris.ac.uk> To: freebsd-hackers@freebsd.org Subject: cluster FS? Reply-To: mexas@bristol.ac.uk X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 30 Sep 2014 08:46:00 -0000 Hello Not sure if this is the right list... I wanted to ask about a cluster file system. Is there something like this on FreeBSD? It seems to me (just from reading the handbook) that none of NFS, HAST or iSCSI provide this. My specific needs are as follows. I have multiple nodes and a disk array. Each node is connected by fibre to the disk array. I want to have each node read/write access to all disks on disk array. So that if any node fails, the data is still accessible via the remaining nodes. I want to have all nodes equal, i.e. no master/slave or server/client model. Also, the disk array provides adequate RAID already, so that is not needed either. In the archives I see that the demands for a cluster FS support on FreeBSD have been expressed periodically over a very long time, but seems there's never been any resolution. Some people mention GFS, but I've no idea if this what I'm trying to describe. So is what I'm describing a cluster FS at all? Is there something like this on FreeBSD already? Is there someting in ports that can be used to achive this? Thanks Anton