diskspeed Running pts/iozone-1.9.5 via the Phoronix Test Suite. fc: Processor: 8 x Intel Xeon X5660 @ 2.80GHz (8 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 8192MB, Disk: 17GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: Ubuntu 18.04, Kernel: 4.15.0-52-generic (x86_64), File-System: ext4, Screen Resolution: 1176x885, System Layer: VMware host 26 das: Processor: 8 x Intel Xeon X5660 @ 2.80GHz (8 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 8192MB, Disk: 17GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: Ubuntu 18.04, Kernel: 4.15.0-52-generic (x86_64), File-System: ext4, Screen Resolution: 1176x885, System Layer: VMware host 27 das: Processor: 8 x Intel Xeon X5660 @ 2.80GHz (8 Cores), Motherboard: Intel 440BX, Chipset: Intel 440BX/ZX/DX, Memory: 8192MB, Disk: 17GB Virtual disk, Graphics: VMware SVGA II, Network: VMware VMXNET3 OS: Ubuntu 18.04, Kernel: 4.15.0-52-generic (x86_64), File-System: ext4, Screen Resolution: 1176x885, System Layer: VMware IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 4529.30 |======================================================== host 26 das . 2922.56 |==================================== host 27 das . 4548.87 |======================================================== IOzone 3.465 Record Size: 1MB - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 4138.17 |===================================================== host 26 das . 2933.20 |====================================== host 27 das . 4349.65 |======================================================== IOzone 3.465 Record Size: 1MB - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 298.08 |========================================================= host 26 das . 183.45 |=================================== host 27 das . 217.77 |========================================== IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 2037.81 |================================================== host 26 das . 1540.70 |====================================== host 27 das . 2276.23 |======================================================== IOzone 3.465 Record Size: 4Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 1938.29 |==================================================== host 26 das . 1600.66 |=========================================== host 27 das . 2075.47 |======================================================== IOzone 3.465 Record Size: 4Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 211.93 |================================================== host 26 das . 240.37 |======================================================== host 27 das . 243.14 |========================================================= IOzone 3.465 Record Size: 1MB - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 126.29 |=============================================== host 26 das . 130.12 |================================================ host 27 das . 154.74 |========================================================= IOzone 3.465 Record Size: 1MB - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 127.35 |=============================================== host 26 das . 134.88 |================================================= host 27 das . 155.35 |========================================================= IOzone 3.465 Record Size: 1MB - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 132.02 |================================================= host 26 das . 148.03 |======================================================= host 27 das . 153.83 |========================================================= IOzone 3.465 Record Size: 4Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 125.68 |================================================ host 26 das . 126.24 |================================================ host 27 das . 149.39 |========================================================= IOzone 3.465 Record Size: 4Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 129.08 |================================================ host 26 das . 142.98 |===================================================== host 27 das . 154.26 |========================================================= IOzone 3.465 Record Size: 4Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 131.77 |================================================== host 26 das . 147.93 |======================================================== host 27 das . 149.80 |========================================================= IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 4520.62 |======================================================= host 26 das . 2956.72 |==================================== host 27 das . 4612.00 |======================================================== IOzone 3.465 Record Size: 64Kb - File Size: 4GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 5178.63 |======================================================== host 26 das . 3118.63 |================================== host 27 das . 4726.36 |=================================================== IOzone 3.465 Record Size: 64Kb - File Size: 8GB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 224.86 |================================================ host 26 das . 260.04 |======================================================= host 27 das . 269.18 |========================================================= IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 3433.38 |=============================================== host 26 das . 2729.51 |===================================== host 27 das . 4081.47 |======================================================== IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 1800.40 |=============================================== host 26 das . 1422.41 |===================================== host 27 das . 2134.47 |======================================================== IOzone 3.465 Record Size: 64Kb - File Size: 2GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 128.07 |=============================================== host 26 das . 132.66 |================================================ host 27 das . 156.94 |========================================================= IOzone 3.465 Record Size: 64Kb - File Size: 4GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 129.63 |================================================ host 26 das . 135.43 |================================================== host 27 das . 153.55 |========================================================= IOzone 3.465 Record Size: 64Kb - File Size: 8GB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 132.65 |================================================== host 26 das . 149.04 |========================================================= host 27 das . 149.93 |========================================================= IOzone 3.465 Record Size: 1MB - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 127.08 |====================================== host 26 das . 163.05 |================================================= host 27 das . 189.40 |========================================================= IOzone 3.465 Record Size: 4Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 123.86 |======================================= host 26 das . 161.06 |================================================== host 27 das . 182.18 |========================================================= IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Read Performance MB/s > Higher Is Better fc .......... 3629.23 |================================================= host 26 das . 2918.85 |======================================= host 27 das . 4168.98 |======================================================== IOzone 3.465 Record Size: 64Kb - File Size: 512MB - Disk Test: Write Performance MB/s > Higher Is Better fc .......... 128.38 |=================================== host 26 das . 176.58 |================================================ host 27 das . 211.37 |=========================================================