THIN_CHECK(8) System Manager's Manual THIN_CHECK(8)
NAME
thin_check - repair thin provisioning metadata on device or file
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.
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 on 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 and repairs thin provisioning metadata on logical volume /dev/vg/metadata:
thin_check /dev/vg/metadata
The device may not be actively used by the target when running.
DIAGNOSTICS
thin_check returns an exit code of 0 for success or 1 for error.
SEE ALSO
thin_dump(8) thin_repair(8) thin_restore(8) thin_rmap(8) thin_metadata_size(8)
AUTHOR
Joe Thornber <ejt@redhat.com>
Heinz Mauelshagen <HeinzM@RedHat.com>
Red Hat, Inc. Thin Provisioning Tools THIN_CHECK(8)