SYNOPSIS
thin_check [options] {device|file}
DESCRIPTION
thin_check checks thin provisioning metadata created by the device-mapper thin provisioning target on a device or file.This tool cannot be run on live metadata.
OPTIONS
- -q, --quiet
-
Suppress output messages, return only exit code.
- -h, --help
-
Print help and exit.
- -V, --version
-
Output version information and exit.
- --super-block-only
-
Only check the superblock is present.
- --skip-mappings
-
Skip checking of the block mappings which make up the bulk of the
metadata.
- --ignore-non-fatal-errors
-
thin_check
will only return a non-zero exit code if it finds a fatal
error. An example of a non fatal error is an incorrect data block
reference count causing a block to be considered allocated when it in
fact isn't. Ignoring errors for a long time is not advised, you
really should be using thin_repair to fix them.
EXAMPLE
Analyses thin provisioning metadata on logical volume /dev/vg/metadata:thin_check /dev/vg/metadata
The device must not be actively used by the target when running.
DIAGNOSTICS
thin_check returns an exit code of 0 for success or 1 for error.