In HP-UX if you need to adjust an existing LVM Volume Group Max Size to accommodate a new physical disk, here is an example which use the vgmodify command.
What is LVM?
Logical Volume Management or LVM allow the server to utilize multiple hard drives and combine them to single storage. It allows an easy way to extend or shrink partition depending on how the user needs.
LVM also supports snapshots and cloning for easy backup of system images. LVM is used to allocating disks, striping, mirroring and resizing logical volumes. This tutorial will walk you through using LVM to manage disk partitions and filesystem sizes.
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