Again using RAID-6 powered by the LSI controller, but running a ZFS filesystem on top: http://openbenchmarking.org/result/1...BY-TEST7477399
No tweaks or alterations have been made for this run, no L2ARC, ZIL, etc - just the same logical drive as in the above test with ZFS on top. Much worse than EXT4, even though it should be benefitting from the same cache optimsations as the EXT4 test, however none of the advantages of ZFS are in play hre.