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.TH era_check 8 "Device Mapper Tools" "System Manager's Manual"
.SH NAME
\fBera_check \fP- validate era metadata on device or file.
\fB
.SH SYNOPSIS
.nf
.fam C
\fBera_check\fP [\fIoptions\fP] {device|file}

.fam T
.fi
.fam T
.fi
.SH DESCRIPTION
\fBera_check\fP checks era metadata created by the device-mapper era target on a
device or file.
.PP
This tool cannot be run on live metadata.
.SH OPTIONS
.TP
.B
\fB-h\fP, \fB--help\fP
Print help and exit.
.TP
.B
\fB-V\fP, \fB--version\fP
Print version information and exit.
.TP
.B
\fB-q\fP, \fB--quiet\fP
Suppress output messages, return only exit code.
.TP
.B
\fB--super-block-only\fP
Only check the superblock is present.
.SH EXAMPLE
Analyse thin provisioning metadata on logical volume /dev/vg/metadata:
.PP
.nf
.fam C
    $ era_check /dev/vg/metadata

.fam T
.fi
The device may not be actively used by the target when running.
.SH DIAGNOSTICS
\fBera_check\fP returns an exit code of 0 for success or 1 for error.
.SH SEE ALSO
\fBera_dump\fP(8), \fBera_restore\fP(8), \fBera_invalidate\fP(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>