[ Thanks to An Anonymous Reader for
this link. ]
“LVM is an implementation of a logical volume manager for the
Linux kernel. The biggest advantage is that LVM provides the
ability to make a snapshot of any logical volume.“In a production environment many users access the same file
(file is open) or database. Suppose you start backup process when a
file is open, you will not get correct or updated copy of file
i.e., inconsistent backup…”