In this article, we are grouping four SSDs into two logical drives, where each group consists of two SSDs.

  1. Install LVM
    $ sudo apt-get update
    $ sudo apt-get install lvm2
    
  2. Configure LVM
    $ sudo su
    $ pvcreate /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
    $ vgcreate vg001 /dev/sdb1 /dev/sdc1
    $ vgcreate vg002 /dev/sde1 /dev/sdd1
    $ vgdisplay
    
  3. Check whether vg001 and vg002 exist and check the size (X.X TiB) of each group.
    $ lvcreate -L [SIZE OF vg001]t -n lv001 vg001
    $ lvcreate -L [SIZE of vg002]t –n lv002 vg002
    $ fdisk -l
    

    /dev/mapper/vg001-lv001 and /dev/mapper/vg002-lv002 should appear.

    $ mkfs.ext4 /dev/vg001/lv001
    $ mkfs.ext4 /dev/vg002/lv002
    $ mkdir /data1 /data2
    $ vi /etc/fstab
    
    /dev/vg001/lv001            /data1               ext4    defaults 0       0
    /dev/vg002/lv002            /data2               ext4    defaults 0       0
    
    $ mount -a
    $ df -h
    
  4. Check the mount status of /data1 and /data2.