Disk /dev/sda: 238.47 GiB, 256060514304 bytes, 500118192 sectors Disk model: Micron_1100_MTFD 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/sda1 * 2048 1050623 1048576 512M b W95 FAT32 /dev/sda2 1050624 500117503 499066880 238G 83 Linux Disk /dev/sdb: 3.64 TiB, 4000787027968 bytes, 7814037164 sectors Disk model: External USB 3.0 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: gpt Disk identifier: -- Device Start End Sectors Size Type /dev/sdb1 2048 7814035455 7814033408 3.6T unknown Disk /dev/mapper/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 3.64 TiB, 4000783007744 bytes, 7814029312 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