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This article mainly shows you "how to use the pvscan command in Linux". The content is simple and clear. I hope it can help you solve your doubts. Let the editor lead you to study and learn how to use the pvscan command in Linux.

The Linux common command pvscan command scans all connected hard drives in the system and lists the physical volumes found. Use the-n option of the pvscan command to display physical volumes on the hard disk that do not belong to any volume group, which are unused.

Pvscan scans the list of physical volumes for all hard drives in the system

Syntax pvscan (option) option-d: debug mode;-e: display only physical volumes that belong to the output volume group;-n: display only physical volumes that do not belong to any volume group;-s: short format output;-u: display UUID. The instance uses the pvscan command to scan the physical volumes of all hard disks in the current system, and enter the following command on the command line:

[root@localhost ~] # pvscan # scan the physical volume output information on all hard disks as follows:

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 output, which do not belong to any volume group and are available physical volumes.

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