把多个磁盘容量合成一个磁盘挂载到一个目录上

sudo pvcreate /dev/sda /dev/sdb /dev/sdc
sudo vgcreate data_volume_group /dev/sda /dev/sdb /dev/sdc
sudo lvcreate -l 100%FREE -n data_logical_volume data_volume_group
sudo mkfs.ext4 /dev/data_volume_group/data_logical_volume
sudo mkdir -p /data
sudo mount /dev/data_volume_group/data_logical_volume /data


sudo blkid /dev/data_logical_volume

sudo vim /etc/fstab
/dev/data_volume_group/data_logical_volume: UUID="d3d5a520-1ec6-4372-a7ea-468440cf3e98" BLOCK_SIZE="4096" TYPE="ext4"