[ceph-users] layout help: need chassis local io to minimize net links

Hi I have a few servers each with 6 or more disks, with a storage workload that's around 80% done entirely within each server.   From a work-to-be-done perspective there's no need for 80% of the load to traverse network interfaces, the rest needs what ceph is all about.   So I cooked up a set of crush maps and pools, one map/pool for each server and one map/pool for the whole.  Skipping the long story, the performance remains network link speed bound and has got to change.  "Chassis local" io is too slow.   I even tried putting a mon within each server.    I'd like to avoid having to revert to some other HA filesystem per server with ceph at the chassis layer if I can help it.    Any notions that would allow 'chassis local' rbd traffic to avoid or mostly avoid leaving the box? Thanks!