Dave and Jim,
as part of the investigation to h2fw0 crashing, we installed 48GB of RAM into h2fw0 this morning. Now h2dc0, h2fw0 and h2fw1 all have the same memory configuration of 48GB RAM taken from the Sun X4270 machines. On restart we verified that h2fw0 no longer uses any swap memory. Should know by tomorrow if this has fixed the "retransmission error" restarts.