1era_invalidate(8) System Manager's Manual era_invalidate(8)
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6 era_invalidate - Provide a list of blocks that have changed since a
7 particular era.
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10 era_invalidate [options] {device|file}
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14 era_invalidate examines era metadata and lists blocks that may have
15 changed since a given era.
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17 This tool cannot be run on live metadata unless the --metadata-snap op‐
18 tion is used.
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21 -h, --help
22 Print help and exit.
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24 -V, --version
25 Print version information and exit.
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27 -o {output file}
28 Write output to a file rather than stdout.
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30 --metadata-snapshot
31 Use the metadata snapshot rather than the current superblock.
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33 --written-since {era nr}
34 Blocks written since the given era will be listed.
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37 List the blocks that may have been written since the beginning of era
38 13 on the metadata device /dev/vg/metadata:
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40 $ era_invalidate --written-since 13 /dev/vg/metadata
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42 The device may not be actively used by the target when running.
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45 era_invalidate returns an exit code of 0 for success or 1 for error
46 (eg, metadata corruption).
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49 era_check(8), era_dump(8), era_restore(8)
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52 Joe Thornber <ejt@redhat.com>
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56System Manager's Manual Device Mapper Tools era_invalidate(8)