thin-provisioning-tools/man8/era_dump.8

.TH ERA_DUMP 8 "Thin Provisioning Tools" "Red Hat, Inc." \" -*- nroff -*-
.SH NAME
era_dump \- dump era metadata from device or file to standard output

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

.SH DESCRIPTION
.B era_dump
dumps binary era metadata created by the device-mapper
era target on a
.I device
or
.I file
to standard output for
analysis or postprocessing in XML format.
XML formated metadata can be fed into era_restore (see
.BR era_restore(8) )
in order to put it back onto a metadata
.I device
(to process by the device-mapper target) or
.I file.

This tool cannot be run on live metadata.

.IP "\fB\-\-repair\fP".
Repair the metadata whilst dumping it.

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

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

.IP "\fB\-\-logical\fP".
Fold any unprocessed write sets into the final era array.  You
probably want to do this if you're intending to process the results as
it simplifies the XML.

.IP "\fB-o \fI{xml file}\fP"
Specify a file for the output rather than writing to stdout.

.SH EXAMPLES
Dumps era metadata on logical volume /dev/vg/metadata
to standard output in XML format:
.sp
.B era_dump /dev/vg/metadata

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

.SH SEE ALSO
.B era_check(8)
.B era_repair(8)
.B era_restore(8)
.B era_invalidate(8)
.SH AUTHOR
Joe Thornber <ejt@redhat.com>