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 iscsi 10x2TB: 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 |======================================================= iscsi 10x2TB . 3789.07 |============================================== 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 |======================================================= iscsi 10x2TB . 4210.43 |===================================================== 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 |========================= iscsi 10x2TB . 497.29 |======================================================== 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 |======================================================= iscsi 10x2TB . 2129.63 |=================================================== 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 |===================================================== iscsi 10x2TB . 2167.41 |======================================================= 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 |================================================ iscsi 10x2TB . 286.25 |======================================================== 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 |=========== iscsi 10x2TB . 817.45 |======================================================== 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 |========= iscsi 10x2TB . 932.20 |======================================================== 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 |========= iscsi 10x2TB . 965.05 |======================================================== 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 |============= iscsi 10x2TB . 636.37 |======================================================== 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 |============= iscsi 10x2TB . 673.76 |======================================================== 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 |============ iscsi 10x2TB . 712.42 |======================================================== 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 |======================================================= iscsi 10x2TB . 4493.90 |====================================================== 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 |================================================== iscsi 10x2TB . 4743.77 |================================================== 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 |================================================= iscsi 10x2TB . 305.02 |======================================================== 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 |======================================================= iscsi 10x2TB . 3086.95 |========================================== 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 |======================================================= iscsi 10x2TB . 1751.04 |============================================= 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 |========== iscsi 10x2TB . 855.06 |======================================================== 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 |========= iscsi 10x2TB . 925.36 |======================================================== 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 |======== iscsi 10x2TB . 1000.92 |======================================================= 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 |=================== iscsi 10x2TB . 571.69 |======================================================== 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 |====================== iscsi 10x2TB . 464.01 |======================================================== 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 |======================================================= iscsi 10x2TB . 3339.62 |============================================ 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 |===================== iscsi 10x2TB . 566.36 |========================================================