thin_rmap - Man Page
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, ā--help
Print help and exit.
- -V, ā--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@redhat.com>, Heinz Mauelshagen <HeinzM@RedHat.com>
Referenced By
thin_check(8), thin_delta(8), thin_dump(8), thin_ls(8), thin_metadata_pack(8), thin_metadata_size(8), thin_metadata_unpack(8), thin_repair(8), thin_restore(8), thin_trim(8).