era_dump(8)

NAME
era_dump - dump era metadata from device or file to standard output.

SYNOPSIS
era_dump [options] {device|file}

DESCRIPTION
era_dump dumps binary era metadata created by the device-mapper era target on a device or file to standard output for analysis or postprocessing in XML format. XML formatted metadata can be fed into era_restore (see era_restore(8)) in order to put it back onto a metadata device (to process by the device-mapper target) or file.

This tool cannot be run on live metadata.

OPTIONS

-h, --help
    Print help and exit.

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

--repair
    Repair the metadata whilst dumping it.

--logical
    Fold any unprocessed write sets into the final era array.

    You probably want to do this if you're intending to process the results as
    it simplifies the XML.

-o {xml file}
    Specify a file for the output rather than writing to stdout.

EXAMPLES
Dumps era metadata on logical volume /dev/vg/metadata to standard output in XML format:

    $ era_dump /dev/vg/metadata

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

SEE ALSO
era_check(8), era_restore(8), era_invalidate(8)

AUTHOR
Joe Thornber <ejt@redhat.com>