[Beowulf] Roadrunner picture

[John Hearns]

On Wed, 2008-07-16 at 23:29 +0100, John Hearns wrote:

> 
> To answer your question more directly, Panasas is a storage cluster to
> complement your compute cluster. Each storage blade is connected into a
> shelf (chassis) with an internal ethernet network. Each shelf is then
> connected to your ethernet switch with at least 4Gbps of bandwidth.

Before I damn Panasas with faint praise, there is an option for higher
bandwidth connectivity which I'd hazard a guess is in use here.
And remember that's the connectivity to each one of the chassis - not to
the system as a whole.