Disk /dev/sda: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors Disk model: ST2000DM001-1ER1 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sda1 2048 1050623 1048576 512M EFI System /dev/sda2 1050624 2405134335 2404083712 1.1T Linux filesystem /dev/sda3 2405134336 3907029134 1501894799 716.2G Linux filesystem Disk /dev/sdb: 3.64 TiB, 4000786153472 bytes, 7814035456 sectors Disk model: My Book 25EE Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sdb1 2048 7814033407 7814031360 3.6T Linux filesystem