cache_dump (8)

cache_dump [options] {device|file}

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.

-r, --repair

Repair the metadata whilst dumping it.

-h, --help

Print help and exit.

-V, --version

Output version information and exit.

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

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

Joe Thornber <[email protected]>

Heinz Mauelshagen <[email protected]>