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.TH thin_rmap 8 "Device Mapper Tools" "System Manager's Manual"
.SH NAME
\fBthin_rmap \fP- output reverse map of a thin provisioned region of blocks from
\fBmetadata device or file.
\fB
.SH SYNOPSIS
.nf
.fam C
\fBthin_rmap\fP [\fIoptions\fP] {device|file}
.fam T
.fi
.SH DESCRIPTION
\fBthin_rmap\fP 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.
.PP
This tool cannot be run on live metadata.
.SH OPTIONS
.TP
.B
\fB-h\fP, \fB--help\fP
Print help and exit.
.TP
.B
\fB-V\fP, \fB--version\fP
Print version information and exit.
.TP
.B
\fB--region\fP {block range}
Specify range of blocks on the data device.
.PP
.nf
.fam C
    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.

.fam T
.fi
.SH EXAMPLES

$ \fBthin_rmap\fP \fB--region\fP 5..45 /dev/pool-metadata
.SH DIAGNOSTICS
\fBthin_rmap\fP returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
\fBthin_check\fP(8), \fBthin_dump\fP(8), \fBthin_repair\fP(8), \fBthin_restore\fP(8), \fBthin_metadata_size\fP(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>