Volume group

A volume group is like a large storage pool made up of multiple physical storage devices, such as hard drives or SSDs. Instead of using each device separately, the volume group combines them into one flexible resource. This allows you to create, resize, or manage individual parts called logical volumes—think of them as virtual storage compartments—without worrying about the specific physical disks. Volume groups make storage management more adaptable and efficient, enabling easier expansion and better utilization of your storage hardware without disrupting ongoing work.