thin_rmap(8)

NAME
thin_rmap - output reverse map of a thin provisioned region of blocks from metadata device or file.

SYNOPSIS
thin_rmap [options] {device|file}

DESCRIPTION
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.

OPTIONS

-h, --help
    Print help and exit.

-V, --version
    Print version information and exit.

--region {block range}
    Specify range of blocks on the data device.

    At least one region must be specified.  Multiple regions may be specified.

    The range takes the format <begin>..<one past the end>.  For example,
    "5..45" specifies data blocks 5 to 44 inclusive, but not 45.

EXAMPLES

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

DIAGNOSTICS
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)

AUTHOR
Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>