new linux disk root: Processor: Intel Core i3-4130 @ 3.39GHz (4 Cores), Motherboard: Gigabyte B85M-D3H, Memory: 4096MB, Disk: 256GB Samsung SSD 850 + 320GB SAMSUNG HD322HJ + 1000GB Hitachi HDS72101 + 500GB Seagate ST500DM002-1BD14, Graphics: (1150MHz) OS: CentOS 6.6, Kernel: 2.6.32-504.1.3.el6.x86_64 (x86_64), Compiler: GCC 4.4.7 20120313, File-System: ext4, Screen Resolution: 1024x768 IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better root . 4738.49 |=============================================================== IOzone 3.405 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better root . 109.73 |================================================================