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

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

9       ndctl read-labels <nmem0> [<nmem1>..<nmemN>] [<options>]
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DESCRIPTION

12       The namespace label area is a small persistent partition of capacity
13       available on some NVDIMM devices. The label area is used to resolve
14       aliasing between pmem and blk capacity by delineating namespace
15       boundaries. This command dumps the raw binary data in a dimm’s label
16       area to stdout or a file. In the multi-dimm case the data is
17       concatenated.
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OPTIONS

20       <memory device(s)>
21           One or more nmemX device names. The keyword all can be specified to
22           operate on every dimm in the system, optionally filtered by bus id
23           (see --bus= option).
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25       -b, --bus=
26           Limit operation to memory devices (dimms) that are on the given
27           bus. Where bus can be a provider name or a bus id number.
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29       -v
30           Turn on verbose debug messages in the library (if ndctl was built
31           with logging and debug enabled).
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33       -o, --output
34           output file
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36       -j, --json
37           parse the label data into json assuming the NVDIMM Namespace
38           Specification format.
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41       Copyright (c) 2016 - 2018, Intel Corporation. License GPLv2: GNU GPL
42       version 2 http://gnu.org/licenses/gpl.html. This is free software: you
43       are free to change and redistribute it. There is NO WARRANTY, to the
44       extent permitted by law.
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SEE ALSO

47       UEFI NVDIMM Label Protocol[1]
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NOTES

50        1. UEFI NVDIMM Label Protocol
51           http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
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55ndctl 62                          05/11/2019              NDCTL-READ-LABELS(1)
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