NAME
thin_rmap - output reverse map of a thin provisioned region of blocks from metadata device or file.
SYNOPSIS
thin_rmap [options] {device|file}
DESCRIPTION
thin_rmap outputs the reverse mapping stored in the metadata on a device or file between a region of thin provisioned pool blocks and the associated thin provisioned devices.
This tool cannot be run on live metadata.
OPTIONS
-h, --help
Print help and exit.
-V, --version
Print version information and exit.
--region {block range}
Specify range of blocks on the data device.
At least one region must be specified. Multiple regions may be specified.
The range takes
the format <begin>..<one past the end>. For
example,
"5..45" specifies data blocks 5 to 44 inclusive,
but not 45.
EXAMPLES
$ thin_rmap --region 5..45 /dev/pool-metadata
DIAGNOSTICS
thin_rmap returns an exit code of 0 for success or 1 for error.
SEE ALSO
thin_check(8), thin_dump(8), thin_repair(8), thin_restore(8), thin_metadata_size(8)
AUTHOR
Joe Thornber <ejt [AT] redhat.com>, Heinz Mauelshagen <HeinzM [AT] RedHat.com>