Disk /dev/sda: 698.65 GiB, 750156374016 bytes, 1465149168 sectors Disk model: WDC WD7500BPKX-0 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: dos Disk identifier: -- Device Boot Start End Sectors Size Id Type /dev/sda1 4096 2101247 2097152 1G 82 Linux swap / Solaris /dev/sda2 * 2101248 44044287 41943040 20G 83 Linux /dev/sda3 44044288 1465147391 1421103104 677.7G 83 Linux Disk /dev/sdb: 1.84 TiB, 2000365289472 bytes, 3906963456 sectors Disk model: My Passport 0820 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: dos Disk identifier: -- Device Boot Start End Sectors Size Id Type /dev/sdb1 2048 3906963455 3906961408 1.8T 83 Linux Disk /dev/sdc: 1.84 TiB, 2000365289472 bytes, 3906963456 sectors Disk model: My Passport 0830 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: dos Disk identifier: -- Device Boot Start End Sectors Size Id Type /dev/sdc1 2048 3906963455 3906961408 1.8T 83 Linux Disk /dev/sdd: 1.84 TiB, 2000365289472 bytes, 3906963456 sectors Disk model: My Passport 0827 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: dos Disk identifier: -- Device Boot Start End Sectors Size Id Type /dev/sdd1 2048 3906963455 3906961408 1.8T 83 Linux Disk /dev/md127: 3.65 TiB, 4000457949184 bytes, 7813394432 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 524288 bytes / 1048576 bytes