1NDCTL-CHECK-LABELS(1) ndctl Manual NDCTL-CHECK-LABELS(1)
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6 ndctl-check-labels - determine if the given dimms have a valid
7 namespace index block
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10 ndctl check-labels <nmem0> [<nmem1>..<nmemN>] [<options>]
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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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21 <memory device(s)>
22 A nmemX device name, or a dimm id number. Restrict the operation to
23 the specified dimm(s). The keyword all can be specified to indicate
24 the lack of any restriction, however this is the same as not
25 supplying a --dimm option at all.
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27 -s, --size=
28 Limit the operation to the given number of bytes. A size of 0
29 indicates to operate over the entire label capacity.
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31 -O, --offset=
32 Begin the operation at the given offset into the label area.
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34 -b, --bus=
35 A bus id number, or a provider string (e.g. "ACPI.NFIT"). Restrict
36 the operation to the specified bus(es). The keyword all can be
37 specified to indicate the lack of any restriction, however this is
38 the same as not supplying a --bus option at all.
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40 -v
41 Turn on verbose debug messages in the library (if ndctl was built
42 with logging and debug enabled).
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45 Copyright © 2016 - 2020, Intel Corporation. License GPLv2: GNU GPL
46 version 2 http://gnu.org/licenses/gpl.html. This is free software: you
47 are free to change and redistribute it. There is NO WARRANTY, to the
48 extent permitted by law.
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51 UEFI NVDIMM Label Protocol[1]
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54 1. UEFI NVDIMM Label Protocol
55 http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
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59ndctl 71.1 12/22/2020 NDCTL-CHECK-LABELS(1)