lvscan

scans and lists all logical volumes in all volume groups

TLDR

List all logical volumes

$ sudo lvscan

Include internal LV components (mirrors, etc.)

$ sudo lvscan --all

Output in JSON format

$ sudo lvscan --reportformat json

Run in read-only mode without taking locks

$ sudo lvscan --readonly

Verbose output with extra detail

$ sudo lvscan -v

SYNOPSIS

lvscan [options]

DESCRIPTION

lvscan scans and lists all logical volumes in all volume groups. The output shows one line per logical volume indicating whether it is active or inactive, the LV path, and its size.

PARAMETERS

-a, --all

Show information about internal LVs that are components of normal LVs (e.g., mirror images and logs).

-b, --blockdevice

No longer used. Use lvs(8) or lvdisplay(8) instead.

--readonly

Read on-disk metadata without taking locks. Useful for inspecting metadata on VMs or clustered VGs.

--reportformat FORMAT

Output format: basic or json.

--ignorelockingfailure

Allow the command to continue with read-only metadata after locking failures.

-d, --debug

Increase debug detail (repeat 1-6 times).

-q, --quiet

Suppress output and log messages.

-t, --test

Run in test mode without updating metadata.

-v, --verbose

Increase verbosity (repeat 1-4 times).