.TH ERA_CHECK 8 "Thin Provisioning Tools" "Red Hat, Inc." \" -*- nroff -*-
.SH NAME
era_check \- validate era metadata on device or file

.SH SYNOPSIS
.B era_check
.RB [ options ]
.I {device|file}

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

This tool cannot be run on live metadata.

.SH OPTIONS
.IP "\fB\-q, \-\-quiet\fP"
Suppress output messages, return only exit code.

.IP "\fB\-h, \-\-help\fP"
Print help and exit.

.IP "\fB\-V, \-\-version\fP"
Output version information and exit.

.IP "\fB\-\-super\-block\-only\fP"
Only check the superblock is present.

.B era_check
will return a non-zero exit code if it finds a fatal
error.  If any errors are discovered use
.B era_repair
to correct.

.SH EXAMPLE
Analyse thin provisioning metadata on logical volume
/dev/vg/metadata:
.sp
.B era_check /dev/vg/metadata

The device may not be actively used by the target
when running.

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

.SH SEE ALSO
.B era_dump(8)
.B era_repair(8)
.B era_restore(8)
.B era_invalidate(8)

.SH AUTHOR
Joe Thornber <ejt@redhat.com>