2017-09-20 15:45:00 +05:30
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NAME
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cache_dump - dump cache metadata from device or file to standard output.
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SYNOPSIS
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cache_dump [options] {device|file}
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DESCRIPTION
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cache_dump dumps binary cache metadata created by the device-mapper cache
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target on a device or file to standard output for analysis or postprocessing
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2017-09-20 18:23:59 +05:30
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in XML format. XML formatted metadata can be fed into cache_restore in order
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2017-09-20 15:45:00 +05:30
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to put it back onto a metadata device (to process by the device-mapper
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target), or file.
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This tool cannot be run on live metadata.
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OPTIONS
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2017-09-20 18:23:59 +05:30
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-h, --help Print help and exit.
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-V, --version Print version information and exit.
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-r, --repair Repair the metadata whilst dumping it.
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-o {xml file} Specify an output file for the xml, rather than printing to stdout.
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2017-09-20 15:45:00 +05:30
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EXAMPLES
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Dumps the cache metadata on logical volume /dev/vg/metadata to standard
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output in XML format:
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$ cache_dump /dev/vg/metadata
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Dumps the cache metadata on logical volume /dev/vg/metadata whilst repairing
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2017-09-20 18:23:59 +05:30
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it to standard output in XML format:
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2017-09-20 15:45:00 +05:30
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$ cache_dump --repair /dev/vg/metadata
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DIAGNOSTICS
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cache_dump returns an exit code of 0 for success or 1 for error.
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SEE ALSO
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cache_check(8), cache_repair(8), cache_restore(8)
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AUTHOR
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Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>
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