vgdisplay

The command line tool "vgdisplay" is a part of the LVM (Logical Volume Manager) system in Linux. It provides information about the volume groups on a Linux system.

When executed, "vgdisplay" displays details about each volume group, including its name, UUID (Universally Unique Identifier), format, number of physical volumes, and logical volumes contained within it.

It also shows the total size of the volume group, as well as the amount of free and used space. Additionally, it provides information about the physical extents and their locations within the volume group.

Furthermore, the tool shows various other attributes of the volume group, such as the maximum logical volume size, maximum physical volumes, and maximum logical volumes. It also displays the volume group's metadata areas and version information.

"vgdisplay" is particularly helpful for system administrators managing storage in a Linux environment, as it allows them to get a comprehensive overview of the volume groups on their system and monitor their utilization.