Re: [gentoo-user] filesystems

[William Kenworthy <billk@iinet.net.au>]

On Mon, 2008-11-24 at 12:35 +0000, Stroller wrote:
> On 24 Nov 2008, at 11:07, Dirk Heinrichs wrote:
> > ...
> > If you have further questions, feel free to ask.
> 
> I would love a file system that transparently replicates over several  
> systems - say 2 - 5.
> 
> It doesn't need to amalgamate spare in any way (as BillK requests),  
> let's just say I just have a couple of gig on each machine that I want  
> replicated.
> 
> I should be able to read & operate on the files on the "partition"  
> just as normal, but when a file is saved to or deleted from any one  
> machine the change should be replicated on all the others across the  
> (slow) network.
> 
> Basically, the idea is that I should be able to set machines A, B & C  
> as MX for my domain and be able to read a new message whichever  
> machine receives it. I should be able to run all 3 machines as IMAP  
> servers and connect to any one of them to see the same view of my  
> messages. When the IMAP server deletes or moves a message (on, say, A)  
> that transaction should be replicated across B & C. (But likewise if  
> the message is moved or deleted on B then the transaction should be  
> replicated across A & C).
> 
> I suspect I would be optimistic if I hoped for something so  
> sophisticated to be readily available, as I am aware that this would  
> be problematic to implement. But do you have any suggestions?
> 
> Stroller.
> 
> 

I set up an openmosix cluster once using dfs I think.  It replicated
data just like you want so each exported thread was seeing consistent
file space.  It did work, but had a few issues ... I think it was
designed by MS being one :)

http://en.wikipedia.org/wiki/Distributed_File_System_(Microsoft)

BillK