NDCTL-READ-LABELS(1) ndctl Manual NDCTL-READ-LABELS(1)

NAME
       ndctl-read-labels - read out the label area on a dimm or set of dimms

SYNOPSIS
       ndctl read-labels  [..] []

DESCRIPTION
       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 pmem and blk capacity by delineating namespace
       boundaries. This command dumps the raw binary data in a dimm’s label
       area to stdout or a file. In the multi-dimm case the data is
       concatenated.

OPTIONS
       
           One or more nmemX device names. The keyword all can be specified to
           operate on every dimm in the system, optionally filtered by bus id
           (see bus= option).

       -b, bus=
           Limit operation to memory devices (dimms) that are on the given
           bus. Where bus can be a provider name or a bus id number.

       -v
           Turn on verbose debug messages in the library (if ndctl was built
           with logging and debug enabled).

       -o, output
           output file

       -j, json
           parse the label data into json assuming the NVDIMM Namespace
           Specification format.

COPYRIGHT
       Copyright (c) 2016 - 2018, Intel Corporation. License GPLv2: GNU GPL
       version 2 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.

SEE ALSO
       UEFI NVDIMM Label Protocol[1]

NOTES
        1. UEFI NVDIMM Label Protocol
           http://www.uefi.org/sites/default/files/resources/UEFISpec27.pdf



ndctl 62                          11/02/2018              NDCTL-READ-LABELS(1)