era_check (8) Linux Manual Page
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
- -h, –help
- Print help and exit.
- -V, –version
- Print version information and exit.
- -q, –quiet
- Suppress output messages, return only exit code.
- –super-block-only
- 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 [at] redhat.com>