era_invalidate.8

era_invalidate

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE
DIAGNOSTICS
SEE ALSO
AUTHOR

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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>

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