Wayne, Transferring an 8gb file using rsync between a network (10GbE) mounted filesystem and local disk. rsync-2.6.9 - 88-95 MB/sec rsync-3.0.6 - 62-72 MB/sec rsync-3.1.0 - 86-90 MB/sec Doing a cp of the file yields 140-160MB/sec. It appears the IO code improvements in 3.1 have definitely made a difference over the 3.0 code base. Greg