test local zfs raid zfs: Processor: 2 x Intel Xeon E5-2670 0 @ 2.60GHz (12 Cores), Motherboard: Xen HVM domU v4.13, Chipset: Intel 440FX- 82441FX PMC, Memory: 16384MB, Disk: 63GB, Graphics: Device 1234:1111 OS: Ubuntu 18.04, Kernel: 4.15.0-112-generic (x86_64), File-System: ext4, Screen Resolution: 1024x768, System Layer: Xen HVM domU 4.13 IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better zfs . 6542.68 |================================================================ IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better zfs . 6630.65 |================================================================ IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better zfs . 3223.47 |================================================================ IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better zfs . 416.69 |================================================================= IOzone 3.465 Record Size: 2MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better zfs . 375.52 |================================================================= IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better zfs . 10.08 |================================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better zfs . 6390.84 |================================================================ IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better zfs . 116.19 |=================================================================