IO1 VMware testing on RedHatEnterpriseServer 6.6 via the Phoronix Test Suite. Virtual disk: Processor: 2 x Intel Xeon X7560 @ 2.26GHz (4 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 1 x 16384 MB DRAM, Disk: 107GB Virtual disk + 537GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: RedHatEnterpriseServer 6.6, Kernel: 2.6.32-504.23.4.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4, System Layer: VMware IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Virtual disk . 1578.61 |======================================================= IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Virtual disk . 1286.93 |======================================================= IOzone 3.405 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Virtual disk . 402.44 |======================================================== IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Virtual disk . 376.42 |======================================================== IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better Virtual disk . 1432.83 |======================================================= IOzone 3.405 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better Virtual disk . 420.04 |========================================================