Здравствуйте, нужно добавить диск (sdc 8:32 0 1.8T 0 disk) в /home/disk1.
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 223.6G 0 disk
├─sda1 8:1 0 20G 0 part
│ └─md126 9:126 0 20G 0 raid1 /
├─sda2 8:2 0 10G 0 part
│ └─md127 9:127 0 10G 0 raid1 [SWAP]
├─sda3 8:3 0 5G 0 part
│ └─md124 9:124 0 5G 0 raid1 /var
├─sda4 8:4 0 1K 0 part
├─sda5 8:5 0 1G 0 part
│ └─md125 9:125 0 1G 0 raid1 /boot
└─sda6 8:6 0 187.6G 0 part
└─md123 9:123 0 187.4G 0 raid1 /home
sdb 8:16 0 223.6G 0 disk
├─sdb1 8:17 0 20G 0 part
│ └─md126 9:126 0 20G 0 raid1 /
├─sdb2 8:18 0 10G 0 part
│ └─md127 9:127 0 10G 0 raid1 [SWAP]
├─sdb3 8:19 0 5G 0 part
│ └─md124 9:124 0 5G 0 raid1 /var
├─sdb4 8:20 0 1K 0 part
├─sdb5 8:21 0 1G 0 part
│ └─md125 9:125 0 1G 0 raid1 /boot
└─sdb6 8:22 0 187.6G 0 part
└─md123 9:123 0 187.4G 0 raid1 /home
sdc 8:32 0 1.8T 0 disk
sdd 8:48 0 1.8T 0 disk
[root@localhost ~]# fdisk /dev/sdc
fdisk: cannot open /dev/sdc: Input/output error