Disk /dev/sda: 465.76 GiB, 500107862016 bytes, 976773168 sectors Disk model: Samsung SSD 850 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sda1 2048 1050623 1048576 512M EFI System /dev/sda2 1050624 2027519 976896 477M Linux filesystem /dev/sda3 2027520 976771071 974743552 464.8G Linux filesystem Disk /dev/sdb: 3.64 TiB, 4000752599040 bytes, 7813969920 sectors Disk model: My Passport 260D 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 3906983935 3906981888 1.8T Linux filesystem /dev/sdb2 3906983936 7813967871 3906983936 1.8T Linux filesystem Disk /dev/mapper/XXXXXXXXXXX 464.78 GiB, 499051921408 bytes, 974710784 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/XXXXXXXXXXX 1.82 TiB, 2000357949440 bytes, 3906949120 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk /dev/mapper/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 1.82 TiB, 2000358998016 bytes, 3906951168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes