cache_dump - dump cache metadata from device or file to standard output.

       Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>

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

cache_dump  dumps  binary cache metadata created by the device-mapper cache target on a device or file to
       standard output for analysis or postprocessing in XML format. XML formatted  metadata  can  be  fed  into
       cache_restore 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.

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

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

           $ cache_dump /dev/vg/metadata

       Dumps the cache metadata on logical volume /dev/vg/metadata whilst repairing it to standard output in XML
       format:

           $ cache_dump --repair /dev/vg/metadata

cache_dump - dump cache metadata from device or file to standard output.

-h,--help
              Print help and exit.

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

       -r,--repair
              Repair the metadata whilst dumping it.

       -o{xmlfile}
              Specify an output file for the xml, rather than printing to stdout.

cache_check(8), cache_repair(8), cache_restore(8)

cache_dump [options] {device|file}