httpv://www.youtube.com/watch?v=z7JmQdBIwQI
In this video, Nic Henke from Cray presents: Lustre Ping Evictor Scaling in LNET Fine Grained Routing Configurations. Recorded at LUG 2012 in Austin.
Note: Most of the videos from LUG 2012 are now posted at the OpenSFS site.