For details on how to add disks and partitioning(sdb1, sdb2), see this(Link) and also see what is PV, VG, LV(Link). I let you know that I did this on VMware virtual environment. The procedure is as follows
partitioning → pvcreate → vgcreate → lvcreate → format → mount
1. pvcreate
pvcreate [Device path] : This creates a physical volume.
Physical volume "/dev/sdb2" and "/dev/sdb1" is created.
2. vgcreate
vgcreate [Volume group name] [Physical volume path 1] [Physical volume path N] -s [Size of PE] : This creates a volume group.
volume group vg1 is created containing 8 MiB PE size.
3. lvcreate
lvcreate [Volume group name] -n [Logical volume name] -L [Size] : This creates a logical volume.
lvcreate -l 100%FREE : Allocate all remaining space.
Logical volume "/dev/vg1/lv2" and "/dev/vg1/lv1" is created.
4. format
I did format two logical volumes with "xfs" and "ext4".
5. mount
Then I mounted the two.
The mounted result by upper method will be removed when the system is rebooted, so it may be helpful to mount it with "mount -a" command after registering it in "/ etc / fstab". Generally, you can add it to the bottom of "/etc/fstab" in the following format.
[UUID] [Absolute path to be mounted] [File system] defaults 0 0
As shown above, to remove the logical volume do the previous steps in reverse .
| Check environment | |||
| O S | CentOS 7.4.1708(64bit) | CPU | Intel i7-4710MQ 2.50GHz |
| SHELL | GNU bash (4.3.46(2)) | RAM | 1 GB |