我有两个固态硬盘和两个旋转硬盘。它们分别是 /dev/sd{a,b} 和 /dev/sd{c,d}。这两个固态硬盘包含我的根安装在一个假的 RAID1 阵列中。后两个旋转硬盘是一个包含我的主目录的假 RAID1 阵列。
每个旋转驱动器都是 2.73 TB。但是，组装成 RAID1 阵列后，显示只有 746 GB。我希望这个家庭驱动器的 ext4 阵列能够充分利用驱动器的全部容量。
$ sudo dmraid -r ERROR: unsupported sector size 4096 on /dev/dm-6. ERROR: unsupported sector size 4096 on /dev/sde. /dev/sda: isw, "isw_cehacfhcg", GROUP, ok, 488397166 sectors, data@ 0 /dev/sdc: isw, "isw_eabehgedbj", GROUP, ok, 5860533166 sectors, data@ 0 /dev/sdb: isw, "isw_cehacfhcg", GROUP, ok, 488397166 sectors, data@ 0 /dev/sdd: isw, "isw_eabehgedbj", GROUP, ok, 5860533166 sectors, data@ 0
$ sudo dmraid -s ERROR: unsupported sector size 4096 on /dev/dm-6. ERROR: unsupported sector size 4096 on /dev/sde.
* Group superset isw_cehacfhcg --> Active Subset name : isw_cehacfhcg_GNU_RAID1_PAIR size : 488390912 stride : 128 type : mirror status : ok subsets: 0 devs : 2 spares : 0 * Group superset isw_eabehgedbj --> Active Subset name : isw_eabehgedbj_HOME_RAID1_PAIR size : 1565561088 stride : 128 type : mirror status : ok subsets: 0 devs : 2 spares : 0
$ sudo fdisk -l Disk /dev/ram0: 64 MiB, 67108864 bytes, 131072 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/ram1: 64 MiB, 67108864 bytes, 131072 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/ram2: 64 MiB, 67108864 bytes, 131072 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/ram3: 64 MiB, 67108864 bytes, 131072 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/ram4: 64 MiB, 67108864 bytes, 131072 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/ram5: 64 MiB, 67108864 bytes, 131072 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/ram6: 64 MiB, 67108864 bytes, 131072 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/ram7: 64 MiB, 67108864 bytes, 131072 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/ram8: 64 MiB, 67108864 bytes, 131072 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/ram9: 64 MiB, 67108864 bytes, 131072 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/ram10: 64 MiB, 67108864 bytes, 131072 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/ram11: 64 MiB, 67108864 bytes, 131072 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/ram12: 64 MiB, 67108864 bytes, 131072 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/ram13: 64 MiB, 67108864 bytes, 131072 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/ram14: 64 MiB, 67108864 bytes, 131072 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/ram15: 64 MiB, 67108864 bytes, 131072 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
GPT PMBR size mismatch (488390919 != 488397167) will be corrected by w(rite). Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 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 Disklabel type: gpt Disk identifier: 079A0748-C6FE-4AF3-AA2B-0C7B0DAE147D
Device Start End Sectors Size Type /dev/sda1 2048 1050623 1048576 512M EFI System /dev/sda2 1050624 421537791 420487168 200.5G Linux filesystem /dev/sda3 421537792 488390655 66852864 31.9G Linux swap
GPT PMBR size mismatch (488390919 != 488397167) will be corrected by w(rite). Disk /dev/sdb: 232.9 GiB, 250059350016 bytes, 488397168 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 Disklabel type: gpt Disk identifier: 079A0748-C6FE-4AF3-AA2B-0C7B0DAE147D
Device Start End Sectors Size Type /dev/sdb1 2048 1050623 1048576 512M EFI System /dev/sdb2 1050624 421537791 420487168 200.5G Linux filesystem /dev/sdb3 421537792 488390655 66852864 31.9G Linux swap
Disk /dev/mapper/isw_cehacfhcg_GNU_RAID1_PAIR: 232.9 GiB, 250056151040 bytes, 488390920 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 Disklabel type: gpt Disk identifier: 079A0748-C6FE-4AF3-AA2B-0C7B0DAE147D
Device Start End Sectors Size Type /dev/mapper/isw_cehacfhcg_GNU_RAID1_PAIR-part1 2048 1050623 1048576 512M EFI System /dev/mapper/isw_cehacfhcg_GNU_RAID1_PAIR-part2 1050624 421537791 420487168 200.5G Linux filesystem /dev/mapper/isw_cehacfhcg_GNU_RAID1_PAIR-part3 421537792 488390655 66852864 31.9G Linux swap
GPT PMBR size mismatch (1565561095 != 5860533167) will be corrected by w(rite). Disk /dev/sdc: 2.7 TiB, 3000592982016 bytes, 5860533168 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 Disklabel type: gpt Disk identifier: 079FB41D-0D42-47BB-8258-58814EC2CD68
Device Start End Sectors Size Type /dev/sdc1 2048 1565560831 1565558784 746.5G Linux filesystem
GPT PMBR size mismatch (1565561095 != 5860533167) will be corrected by w(rite). Disk /dev/sdd: 2.7 TiB, 3000592982016 bytes, 5860533168 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 Disklabel type: gpt Disk identifier: 079FB41D-0D42-47BB-8258-58814EC2CD68
Device Start End Sectors Size Type /dev/sdd1 2048 1565560831 1565558784 746.5G Linux filesystem
Disk /dev/mapper/isw_eabehgedbj_HOME_RAID1_PAIR: 746.5 GiB, 801567281152 bytes, 1565561096 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 Disklabel type: gpt Disk identifier: 079FB41D-0D42-47BB-8258-58814EC2CD68
Device Start End Sectors Size Type /dev/mapper/isw_eabehgedbj_HOME_RAID1_PAIR-part1 2048 1565560831 1565558784 746.5G Linux filesystem
GPT PMBR size mismatch (732566015 != 732566645) will be corrected by w(rite). Disk /dev/sde: 2.7 TiB, 3000592982016 bytes, 732566646 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: E9A6EC18-0588-4AA1-8BB0-02BA9A99CC2B
Device Start End Sectors Size Type /dev/sde1 256 732565759 732565504 2.7T Microsoft basic data
Disk /dev/mapper/luks-c57a597b-4396-4f1a-aac6-faee4902f6d6: 2.7 TiB, 3000587251712 bytes, 732565247 sectors Units: sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes