On Mon, Aug 3, 2009 at 6:32 PM, Roman V Shaposhnik<r...@sun.com> wrote:
> Is all of this storage attached to a very small number of IO nodes, or > is it evenly spread across the cluster? it's on a server. A big Lustre server using a DDN over (currently, I believe) fiber channel. > 2. do we have anybody successfully managing that much storage that is > also spread across the nodes? And if so, what's the best practices > out there to make the client not worry about where does the storage > actually come from (IOW, any kind of proxying of I/O, etc) Google? >> The request: for each of the (lots of) compute nodes, have them mount >> over 9p to, say 100x fewer io nodes, each of those to run lustre. > > Sorry for being dense, but what exactly is going to be accomplished > by proxying I/O in such a way? it makes the unscalable distributed lock manager and other such stuff work, because you stop asking it to scale. ron
