Добрый день. Есть вот такой массив raid1
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 50G 0 part
│ └─md126 9:126 0 50G 0 raid1 /
├─sda2 8:2 0 1G 0 part
│ └─md127 9:127 0 1023M 0 raid1 /boot
├─sda3 8:3 0 201M 0 part
│ └─md124 9:124 0 201M 0 raid1 /boot/efi
└─sda4 8:4 0 7.8G 0 part
└─md125 9:125 0 7.8G 0 raid1 [SWAP]
sdb 8:16 0 931.5G 0 disk
├─sdb1 8:17 0 50G 0 part
│ └─md126 9:126 0 50G 0 raid1 /
├─sdb2 8:18 0 1G 0 part
│ └─md127 9:127 0 1023M 0 raid1 /boot
├─sdb3 8:19 0 201M 0 part
│ └─md124 9:124 0 201M 0 raid1 /boot/efi
└─sdb4 8:20 0 7.8G 0 part
└─md125 9:125 0 7.8G 0 raid1 [SWAP]
Filesystem Size Used Avail Use% Mounted on
/dev/md126 50G 4.5G 46G 9% /
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 12K 3.9G 1% /dev/shm
tmpfs 3.9G 154M 3.7G 4% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/md127 1017M 62M 956M 7% /boot
/dev/md124 201M 9.8M 191M 5% /boot/efi
tmpfs 785M 0 785M 0% /run/user/0
tmpfs 785M 0 785M 0% /run/user/995