xenial (8) cache_dump.8.gz

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 formated  metadata  can  be  fed  into
       cache_restore  (see  cache_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.

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

       -h, --help
       Print help and exit.

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

EXAMPLES

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

       cache_dump /dev/vg/metadata

EXAMPLES

       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>