thin_rmap8

Usage

Overview

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.