cache_dump(8) System Manager's Manual cache_dump(8)
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 std-
out.
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 re-
pairing 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>
System Manager's Manual Device Mapper Tools cache_dump(8)
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