1NDCTL-ZERO-LABELS(1) ndctl Manual NDCTL-ZERO-LABELS(1)
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6 ndctl-zero-labels - zero out the label area on a dimm or set of dimms
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9 ndctl zero-labels <nmem0> [<nmem1>..<nmemN>] [<options>]
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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 resets the device to its default state by
16 deleting all labels.
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19 <memory device(s)>
20 A nmemX device name, or a dimm id number. Restrict the operation to
21 the specified dimm(s). The keyword all can be specified to indicate
22 the lack of any restriction, however this is the same as not
23 supplying a --dimm option at all.
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25 -s, --size=
26 Limit the operation to the given number of bytes. A size of 0
27 indicates to operate over the entire label capacity.
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29 -O, --offset=
30 Begin the operation at the given offset into the label area.
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32 -b, --bus=
33 A bus id number, or a provider string (e.g. "ACPI.NFIT"). Restrict
34 the operation to the specified bus(es). The keyword all can be
35 specified to indicate the lack of any restriction, however this is
36 the same as not supplying a --bus option at all.
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38 -v
39 Turn on verbose debug messages in the library (if ndctl was built
40 with logging and debug enabled).
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43 Copyright © 2016 - 2020, Intel Corporation. License GPLv2: GNU GPL
44 version 2 http://gnu.org/licenses/gpl.html. This is free software: you
45 are free to change and redistribute it. There is NO WARRANTY, to the
46 extent permitted by law.
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49 UEFI NVDIMM Label Protocol[1]
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52 1. UEFI NVDIMM Label Protocol
53 http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
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57ndctl 71.1 07/22/2021 NDCTL-ZERO-LABELS(1)