From owner-freebsd-hackers@FreeBSD.ORG Wed Oct 1 01:44:57 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A211A419; Wed, 1 Oct 2014 01:44:57 +0000 (UTC) Received: from mail-yh0-x22e.google.com (mail-yh0-x22e.google.com [IPv6:2607:f8b0:4002:c01::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 575FE32A; Wed, 1 Oct 2014 01:44:57 +0000 (UTC) Received: by mail-yh0-f46.google.com with SMTP id f73so66122yha.19 for ; Tue, 30 Sep 2014 18:44:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=xgvuuBGKIKC6Xe/fgpV03bJrGcOCBPG1QiO3xHcvkL0=; b=v3HTGx10lw/rImfiYABAK6ybADOTRL1iNLnRtv5W0rUX7kmZdGBCpsfpocGFrjqjIC V5OPWq2YK9ZdaGls2z7kxfPWp6KqObJvfiKEHjmgj6BHLGAZ51uoB26kTh8e992IxxRU a/CH1cmnAPteZtYn5XItR+8WaXul24XHIyEbXUZcw4xpRgekim3OTByrP7DTH1KiZ36t fCJARcXvzj9e9Zzz7xeVnuP7s1t0iBVutZdB9mIXIYNU75XTtH3jw5xgOSLxI0l5yJZd Pw9J1njmlHF06JI7NeVpT1eehDFJHM9tLyErwsK9V9lqG9PI+eXrn23biLsguuFOHlNm Qjbw== MIME-Version: 1.0 X-Received: by 10.236.127.140 with SMTP id d12mr75723501yhi.37.1412127896572; Tue, 30 Sep 2014 18:44:56 -0700 (PDT) Received: by 10.170.206.10 with HTTP; Tue, 30 Sep 2014 18:44:56 -0700 (PDT) In-Reply-To: <542B557F.4050603@freebsd.org> References: <201409300845.s8U8jUTa079241@mech-as221.men.bris.ac.uk> <542B557F.4050603@freebsd.org> Date: Tue, 30 Sep 2014 21:44:56 -0400 Message-ID: Subject: Re: cluster FS? From: Mehmet Erol Sanliturk To: Allan Jude Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 Cc: FreeBSD Hackers 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: Wed, 01 Oct 2014 01:44:57 -0000 On Tue, Sep 30, 2014 at 9:14 PM, Allan Jude wrote: > On 2014-09-30 04:45, Anton Shterenlikht wrote: > > 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 > > > > _______________________________________________ > > freebsd-hackers@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > > To unsubscribe, send any mail to " > freebsd-hackers-unsubscribe@freebsd.org" > > > > What you are describing doesn't really seem to be a 'cluster' FS. > > In a cluster, the disks would reside in multiple machines, and the 'file > system' would withstand any one of those machines going down. That is > quite a bit different than just wanting a bunch of clients to have > concurrent access to a single disk array. > > If you explain your use-case in more detail, we may be able to guide you > in the right direction. > > -- > Allan Jude > > The following pages and their associated pages may be useful for definitions of terms and available capabilities : http://en.wikipedia.org/wiki/Parallel_Virtual_Machine http://en.wikipedia.org/wiki/Linda_%28coordination_language%29 http://en.wikipedia.org/wiki/Category:Parallel_computing http://en.wikipedia.org/wiki/Category:Concurrent_computing http://en.wikipedia.org/wiki/Category:Distributed_computing http://en.wikipedia.org/wiki/Network-attached_storage http://en.wikipedia.org/wiki/Clustered_file_system http://en.wikipedia.org/wiki/Category:Shared_disk_file_systems http://en.wikipedia.org/wiki/Category:Network_file_systems http://en.wikipedia.org/wiki/Ceph_%28software%29 http://en.wikipedia.org/wiki/XtreemFS The above problem seems to be "Network-attached_storage" . Thank you very much . Mehmet Erol Sanliturk