"The LVM Manager is a graphical interface tool that provides an
easy way to manage Logical Volumes. You can install the LVM Manager
with yum on Red Hat Enterprise or CentOS.
yum install system-config-lvm
"This tutorial will help you understand how to manage Logical
Volumes with the LVM Manager. Please note that your initial work
with the LVM Manager should be performed on a test machine as any
mistakes can have unwanted consequences... disaster..."