thin_repair - Man Page

repair thin provisioning binary metadata.


thin_repair [options] -i {device|file} -o {device|file}


thin_repair reads binary thin provisioning metadata created by the respective device-mapper target from one device or file, repairs it and writes it to different device or file. If written to a metadata device, the metadata can be processed by the device-mapper target.

This tool cannot be run on live metadata.


-h, --help

Print help and exit.

-V, --version

Print version information and exit.

-i, --input {device|file}

Input file or device with binary data.

-o, --output {device|file}

Output file or device for binary data.

    If a file is used for output, then it must be preallocated, and large
    enough to hold the metadata.


Reads the binary thin provisioning metadata from file metadata, repairs it and writes it to logical volume /dev/vg/metadata for further processing by the respective device-mapper target:

    $ thin_repair -i metadata -o /dev/vg/metadata


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

See Also

thin_dump(8), thin_check(8), thin_restore(8), thin_rmap(8), thin_metadata_size(8)


Joe Thornber <>, Heinz Mauelshagen <>

Referenced By

lvconvert(8), lvmthin(7), thin_check(8), thin_delta(8), thin_dump(8), thin_ls(8), thin_metadata_size(8), thin_restore(8), thin_rmap(8), thin_trim(8).

Device Mapper Tools System Manager's Manual