NAME era_invalidate - Provide a list of blocks that have changed since a particular era. SYNOPSIS era_invalidate [options] {device|file} DESCRIPTION era_invalidate examines era metadata and lists blocks that may have changed since a given era. This tool cannot be run on live metadata unless the --metadata-snap option is used. OPTIONS -h, --help Print help and exit. -V, --version Print version information and exit. -o {output file} Write output to a file rather than stdout. --metadata-snapshot Use the metadata snapshot rather than the current superblock. --written-since {era nr} Blocks written since the given era will be listed. EXAMPLE List the blocks that may have been written since the beginning of era 13 on the metadata device /dev/vg/metadata: $ era_invalidate --written-since 13 /dev/vg/metadata The device may not be actively used by the target when running. DIAGNOSTICS era_invalidate returns an exit code of 0 for success or 1 for error (eg, metadata corruption). SEE ALSO era_check(8), era_dump(8), era_restore(8) AUTHOR Joe Thornber <ejt@redhat.com>