pvscan

Scan all disks in the system for a list of physical volumes.

Description

The pvscan command scans all connected hard disks in the system and lists the physical volumes found. Using the -n option displays physical volumes that do not belong to any volume group, which are currently unused.

Syntax

pvscan(options)

Options

-d: Debug mode;
-e: Only show physical volumes belonging to exported volume groups;
-n: Only show physical volumes that do not belong to any volume group;
-s: Short format output;
-u: Display UUIDs.

Example

Scan all disks in the current system for physical volumes by entering the following command:

[root@localhost ~]# pvscan     # Scan all disks for physical volumes 

Output information:

PV /dev/sdb1         lvm2 [101.94 MB]  
PV /dev/sdb2         lvm2 [101.98 MB]  
Total: 2 [203.92 MB] / in use: 0 [0   ] / in no VG: 2 [203.92  
MB] 

Note: In this example, two physical volumes are found that do not belong to any volume group and are available for use.