by Rich Kreider
Some notes on increasing LVM partition in Linux.
Terminology
Physical Volume (PV): This can be created on a whole physical disk (think /dev/sda) or a Linux partition.
Volume Group (VG): This is made up of at least one or more physical volumes.
Logical Volume (LV): This is sometimes referred to as the partition, it sits within a volume group and has a file system written to it.
File System: A file system such as ext4 will be on the logical volume.
Increase or Expand Logical Volume
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