Using LVM2

• Before we start working with LVM2, we need to choose some physical volumes on which we will work.
• We take these physical volumes, and place them in volume groups.
• This operation will cause LVM2 to assign a unique UUID for each physical volume.
• After this, we can start creating logical volumes.
• Then we use those logical volumes like normal disks - we can create a file system and mount it, we can use them as raw devices...
• We may add more physical volumes to existing volume groups, in order to add more capacity.
• We may increase the size of the logical volumes, if they become too full. If there is a file system on such a logical volume, we will need to resize it as well.

Originally written by guy keren