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.
--transaction-id {natural}

Override the transaction id given in the input xml.

--data-block-size {natural}

Override the data block size given in the input xml.

--nr-data-blocks {natural}

Override the nr data blocks given in the input xml.


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