sdd_tank_promox_freenas KVM testing on CentOS Linux 7 via the Phoronix Test Suite. QEMU HDD: Processor: Common KVM (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996) (rel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org BIOS), Memory: 1 x 1024 MB RAM QEMU, Disk: 17GB QEMU HDD, Graphics: bochsdrmfb, Monitor: QEMU Monitor OS: CentOS Linux 7, Kernel: 3.10.0-1160.15.2.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better QEMU HDD . 2289.80 |=========================================================== IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better QEMU HDD . 99.25 |=============================================================