Drive Samsung Electronics Co Ltd SSD 990 PRO with Heatsink 4TB hdparm -t /dev/nvme0n1 Timing buffered disk reads: 9404 MB in 3.00 seconds = 3134.21 MB/sec Drive Samsung Electronics Co Ltd SSD 990 PRO with Heatsink 1TB hdparm -t /dev/nvme1n1 Timing buffered disk reads: 5072 MB in 3.00 seconds = 1690.30 MB/sec Drive TOSHIBA MG10ACA20TE 20TB hdparm -t /dev/sda Timing buffered disk reads: 764 MB in 3.01 seconds = 253.98 MB/sec Drive Seagate ST8000DM004-2U9188 8TB hdparm -t /dev/sdb Timing buffered disk reads: 584 MB in 3.01 seconds = 194.30 MB/sec Drive Seagate Expansion Desk 6TB hdparm -t /dev/sdc Timing buffered disk reads: 564 MB in 3.01 seconds = 187.57 MB/sec