1ERA_INVALIDATE(8)           System Manager's Manual          ERA_INVALIDATE(8)
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NAME

6       era_invalidate  -  Provide  a  list of blocks that have changed since a
7       particular era.
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SYNOPSIS

11       era_invalidate [options] {device|file}
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DESCRIPTION

15       era_invalidate Examines era metadata and lists  blocks  that  may  have
16       changed since a given era.
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18       This  tool  cannot  be  run on live metadata unless the --metadata-snap
19       option is used.
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OPTIONS

23       -h, --help
24              Print help and exit.
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27       -V, --version
28              Output version information and exit.
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31       -o <output file>
32              Write output to a file rather than stdout
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EXAMPLE

36       List the blocks that may have been written since the beginning  of  era
37       13 on the metadata device /dev/vg/metadata.
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39       era_invalidate --written-since 13 /dev/vg/metadata
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41       The device may not be actively used by the target when running.
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DIAGNOSTICS

45       era_invalidate  returns  an  exit  code of 0 for success or 1 for error
46       (eg, metadata corruption).
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SEE ALSO

50       era_check(8), era_dump(8), era_repair(8), era_restore(8)
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AUTHOR

54       Joe Thornber <ejt@redhat.com>
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58Red Hat, Inc.               Thin Provisioning Tools          ERA_INVALIDATE(8)
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