1NDCTL-CHECK-LABELS(1)            ndctl Manual            NDCTL-CHECK-LABELS(1)
2
3
4

NAME

6       ndctl-check-labels - determine if the given dimms have a valid
7       namespace index block
8

SYNOPSIS

10       ndctl check-labels <nmem0> [<nmem1>..<nmemN>] [<options>]
11

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.
19

OPTIONS

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.
26
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.
30
31       -O, --offset=
32           Begin the operation at the given offset into the label area.
33
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.
39
40       -v
41           Turn on verbose debug messages in the library (if ndctl was built
42           with logging and debug enabled).
43
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.
49

SEE ALSO

51       UEFI NVDIMM Label Protocol[1]
52

NOTES

54        1. UEFI NVDIMM Label Protocol
55           http://www.uefi.org/sites/default/files/resources/UEFI_Spec_2_7.pdf
56
57
58
59ndctl 71.1                        12/22/2020             NDCTL-CHECK-LABELS(1)
Impressum