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era_check(8) System Manager's Manual era_check(8)

NAME

era_check - validate era metadata on device or file.

SYNOPSIS

era_check [options] {device|file}

DESCRIPTION

era_check checks era metadata created by the device-mapper era target on a device or file.

This tool cannot be run on live metadata.

OPTIONS

Print help and exit.
Print version information and exit.
Suppress output messages, return only exit code.
Only check the superblock is present.

EXAMPLE

Analyse thin provisioning metadata on logical volume /dev/vg/metadata:


$ era_check /dev/vg/metadata
The device may not be actively used by the target when running.

DIAGNOSTICS

era_check returns an exit code of 0 for success or 1 for error.

SEE ALSO

era_dump(8), era_restore(8), era_invalidate(8)

AUTHOR

Joe Thornber <ejt@redhat.com>

Device Mapper Tools System Manager's Manual