Disk /dev/sda: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: WDC WD10SPZX-22Z 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 * 2048 499711 497664 243M 83 Linux /dev/sda2 501758 1953523711 1953021954 931.3G 5 Extended /dev/sda5 501760 1953523711 1953021952 931.3G 83 Linux Partition 2 does not start on physical sector boundary. Disk /dev/mapper/XXXXXXXXXXX 931.26 GiB, 999930462208 bytes, 1952989184 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/XXXXXXXXXXXXXX 915.36 GiB, 982863839232 bytes, 1919655936 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/XXXXXXXXXXXXXXXX 15.86 GiB, 17033068544 bytes, 33267712 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