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

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

Print help and exit.
Print version information and exit.
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@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>

Device Mapper Tools System Manager's Manual