Man pages sections > man8 > era_dump

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

era_dump(8) System Manager's Manual 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 formated 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 writeing 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>
Device Mapper Tools System Manager's Manual