thin_rmap man page

thin_rmap — output reverse map of a thin provisioned region of blocks from metadata device or file


thin_rmap [options] {device|file}


thin_rmap outputs the reverse mapping stored in the metadata on a device or file between a region of thin provisioned pool blocks and the associated thin provisioned devices.

This tool cannot be run on live metadata.

--region <block range>

output reverse map

-h, --help

Print help and exit.

-V, --version

Output version information and exit.


output reverse map for pool blocks 5..45 (denotes blocks 5 to 44 inclusive, but not block 45)

thin_rmap --region 5..45 /dev/pool-metadata


thin_rmap returns an exit code of 0 for success or 1 for error.

See Also

thin_check(8) thin_dump(8) thin_repair(8) thin_restore(8) thin_metadata_size(8)


Joe Thornber <>
Heinz Mauelshagen <>

Referenced By

thin_check(8), thin_delta(8), thin_dump(8), thin_ls(8), thin_metadata_size(8), thin_repair(8), thin_restore(8), thin_trim(8).

Thin Provisioning Tools Red Hat, Inc.