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LEARN ABOUT CENTOS

thin_dump

THIN_DUMP(8)						      System Manager's Manual						      THIN_DUMP(8)

NAME

       thin_dump - dump thin provisioning metadata from device or file to standard output

SYNOPSIS

       thin_dump [options] {device|file}

DESCRIPTION

       thin_dump  dumps binary thin provisioning metadata (optionally from alternate block; see option --metadata-snap) created by the device-map-
       per thin provisioning target on a device or file to standard output for analysis or postprocessing in either XML or human readable  format.
       XML  formated metadata can be fed into thin_restore (see thin_restore(8)) in order to put it back onto a metadata device (to process by the
       device-mapper target) or file.

       -f, --format {xml|human_readable}
       Print output in XML or human readable format.

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

       -m, --metadata_snap [block#]
       Dump metadata snapshot created by device-mapper thin provisioning target.  If block is not provided, access the default	metadata  snapshot
       created	by  the thin provisioning device-mapper target, else try the one at block#.  See the thin provisioning target documentation on how
       to create or release a metadata snapshot and retrieve the block number from the kernel.

       -h, --help
       Print help and exit.

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

EXAMPLES

       Dumps the thin provisioning metadata on logical volume /dev/vg/metadata to standard output in human readable format:

       thin_dump -f human_redable /dev/vg/metadata

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

       thin_dump /dev/vg/metadata

       Dumps the thin provisioning metadata snapshot on logical volume /dev/vg/metadata to standard output in human readable format (not  process-
       able by thin_restore(8) ):

       thin_dump --format human_readable --metadata-snap /dev/vg/metadata

DIAGNOSTICS

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

SEE ALSO

       thin_check(8) thin_repair(8) thin_restore(8) thin_rmap(8) thin_metadata_size(8)

AUTHOR

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

Red Hat, Inc.						      Thin Provisioning Tools						      THIN_DUMP(8)