'\" t
.\"     Title: ndctl-check-labels
.\"    Author: [see the "AUTHOR(S)" section]
.\" Generator: Asciidoctor 1.5.7.1
.\"      Date: 2018-11-27
.\"    Manual: ndctl Manual
.\"    Source: ndctl
.\"  Language: English
.\"
.TH "NDCTL\-CHECK\-LABELS" "1" "2018-11-27" "ndctl" "ndctl Manual"
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.ss \n[.ss] 0
.nh
.ad l
.de URL
\fI\\$2\fP <\\$1>\\$3
..
.als MTO URL
.if \n[.g] \{\
.  mso www.tmac
.  am URL
.    ad l
.  .
.  am MTO
.    ad l
.  .
.  LINKSTYLE blue R < >
.\}
.SH "NAME"
ndctl\-check\-labels \- determine if the given dimms have a valid namespace index block
.SH "SYNOPSIS"
.sp
.nf
\fIndctl check\-labels\fP <nmem0> [<nmem1>..<nmemN>] [<options>]
.fi
.br
.SH "DESCRIPTION"
.sp
The namespace label area is a small persistent partition of capacity
available on some NVDIMM devices.  The label area is used to resolve
aliasing between \fIpmem\fP and \fIblk\fP capacity by delineating namespace
boundaries.
In addition to checking if a label area has a valid index block, running
this command in verbose mode reports the reason the index block is
deemed invalid.
.SH "OPTIONS"
.sp
<memory device(s)>
.RS 4
One or more \fInmemX\fP device names. The keyword \fIall\fP can be specified to
operate on every dimm in the system, optionally filtered by bus id (see
       \-\-bus= option).
.RE
.sp
\-b, \-\-bus=
.RS 4
Limit operation to memory devices (dimms) that are on the given bus.
Where \fIbus\fP can be a provider name or a bus id number.
.RE
.sp
\-v
.RS 4
Turn on verbose debug messages in the library (if ndctl was built with
logging and debug enabled).
.RE
.SH "COPYRIGHT"
.sp
Copyright (c) 2016 \- 2018, Intel Corporation. License GPLv2: GNU GPL
version 2 \c
.URL "http://gnu.org/licenses/gpl.html" "" "."
This is free software:
you are free to change and redistribute it.  There is NO WARRANTY, to
the extent permitted by law.
.SH "SEE ALSO"
.sp
.URL "http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf" "UEFI NVDIMM Label Protocol" ""