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).
AUTHOR¶
Joe Thornber <ejt@redhat.com>
