dbox 2 x Intel Xeon L5640 testing with a Supermicro X8DTH and Matrox s MGA G200eW WPCM450 on Ubuntu 16.04 via the Phoronix Test Suite. 3sas_zfs_opts: Processor: 2 x Intel Xeon L5640 @ 2.27GHz (24 Cores), Motherboard: Supermicro X8DTH, Chipset: Intel 5520 I/O + ICH10R, Memory: 80896MB, Disk: 500GB Western Digital WD5000ABYS-0 + 500GB Seagate ST9500420ASG + 2 x 1000GB Seagate ST1000LM014-1EJ1 + 4 x 4001GB TOSHIBA HDWQ140 + 1000GB Western Digital WD10EZEX-00B + 2 x 4001GB HGST HDN726040AL + 64GB Type-C + 8GB Cruzer Blade + 3 x 1000GB Seagate ST31000528AS + Samsung SSD 950 PRO 512GB, Graphics: Matrox s MGA G200eW WPCM450, Network: Intel 82576 Gigabit Connection + Mellanox MT27500 Family OS: Ubuntu 16.04, Kernel: 4.10.0-35-lowlatency (x86_64), Compiler: GCC 5.4.0 20160609, File-System: zfs, Screen Resolution: 1024x768 IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better 3sas_zfs_opts . 2801.53 |====================================================== IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better 3sas_zfs_opts . 1163.72 |====================================================== IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better 3sas_zfs_opts . 1288.97 |====================================================== IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better 3sas_zfs_opts . 411.13 |======================================================= IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better 3sas_zfs_opts . 2693.47 |====================================================== IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better 3sas_zfs_opts . 1036.24 |======================================================