LVM

Physical Volumes (PVs): The actual disks or partitions (e.g., /dev/sda1).
Volume Groups (VGs): A pool of storage created from one or more physical volumes.
Logical Volumes (LVs): Flexible partitions created from the space in a volume group.

to create a Physical Volume:

pvcreate /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg

show current Physical Volumes:

pvdisplay

 

 

to create Volume Groups:

vgcreate media /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg

shows currents Volume Groups:

vgdisplay

 

to create Logical Volumes:

lvcreate -n lv_media -L 76.40TiB media

to shows all Logical Volumes:

lvdisplay

 

format Logical Volume:

mkfs.ext4 /dev/media/lv_media

inforamtion about all device mapper

dmsetup info