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

6       ndctl-check-labels - determine if the given dimms have a valid
7       namespace index block
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SYNOPSIS

10       ndctl check-labels <nmem0> [<nmem1>..<nmemN>] [<options>]
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DESCRIPTION

13       The namespace label area is a small persistent partition of capacity
14       available on some NVDIMM devices. The label area is used to resolve
15       aliasing between pmem and blk capacity by delineating namespace
16       boundaries. In addition to checking if a label area has a valid index
17       block, running this command in verbose mode reports the reason the
18       index block is deemed invalid.
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OPTIONS

21       <memory device(s)>
22           One or more nmemX device names. The keyword all can be specified to
23           operate on every dimm in the system, optionally filtered by bus id
24           (see --bus= option).
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26       -s, --size=
27           Limit the operation to the given number of bytes. A size of 0
28           indicates to operate over the entire label capacity.
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30       -O, --offset=
31           Begin the operation at the given offset into the label area.
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33       -b, --bus=
34           Limit operation to memory devices (dimms) that are on the given
35           bus. Where bus can be a provider name or a bus id number.
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37       -v
38           Turn on verbose debug messages in the library (if ndctl was built
39           with logging and debug enabled).
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42       Copyright (c) 2016 - 2019, Intel Corporation. License GPLv2: GNU GPL
43       version 2 http://gnu.org/licenses/gpl.html. This is free software: you
44       are free to change and redistribute it. There is NO WARRANTY, to the
45       extent permitted by law.
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SEE ALSO

48       UEFI NVDIMM Label Protocol
49       <http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf>
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53ndctl                             2020-03-24             NDCTL-CHECK-LABELS(1)
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