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