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

       Joe Thornber <ejt@redhat.com>

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

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.

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

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

           $ era_dump /dev/vg/metadata

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

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

era_check(8), era_restore(8), era_invalidate(8)

era_dump [options] {device|file}