From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pradeep Singh Subject: Re: sharing file between running domU (windowxp) and dom0 Date: Sat, 8 Dec 2007 02:39:36 +0530 Message-ID: <20071208023936.3cb4ad3c@darkstar> References: <841481.91605.qm@web50803.mail.re2.yahoo.com> <200712071648.26147.mark.williamson@cl.cam.ac.uk> <20071207224945.15e9c1f4@darkstar> <200712071741.33875.mark.williamson@cl.cam.ac.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200712071741.33875.mark.williamson@cl.cam.ac.uk> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Mark Williamson Cc: rajneesh rana , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On Fri, 7 Dec 2007 17:41:32 +0000 Mark Williamson wrote: > Hi there, Hello Mark, > [snip] > > Mark,I guess i understood your point here. > > My question is what about cluster filesystems like GFS or OCFS2. > [...] > > Most other filesystems have no concept of writes happening "behind > their back" so they can't be used in this way. In additon to what I > said earlier, please note that it's not just having multiple writers > to an FS that's dangerous. Even if you have the disk mounted > read-only in one domain when you write to it in another, you're > liable to cause that domain to read corrupted data and possibly crash. [...] > > FWIW how is XenFS different from OCFS2 and GFS? > > XenFS is more like a network filesystem than a disk filesystem. The > data is stored by a "normal" filesystem and XenFS exports that > filesystem. The difference from a network filesystem is that it uses > shared memory instead of IP. XenFS looks like an interesting prospect.Shared memory instead of network perhaps will mean better speed.Any repository where i can have a look at its source?Can i employ it on my Xen machine or is it still under development? Thanks for explaining things lucidly and for your patience. Cheers, Pradeep [...] -- heh...people do try to read my signature. http://eagain.wordpress.com http://emptydomain.googlepages.com