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

SYNOPSIS
  cache_dump [options] {device|file}

DESCRIPTION
  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.

OPTIONS
  -h, --help		Print help and exit.
  -V, --version		Print version information and exit.
  -r, --repair		Repair the metadata whilst dumping it.
  -o {xml file}		Specify an output file for the xml, rather than printing to stdout.

EXAMPLES
  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

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

SEE ALSO
  cache_check(8), cache_repair(8), cache_restore(8)

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

