# ndctl−inject−smart(1)

[NAME](#name)\
[SYNOPSIS](#synopsis)\
[DESCRIPTION](#description)\
[EXAMPLES](#examples)\
[OPTIONS](#options)\
[COPYRIGHT](#copyright)\
[SEE ALSO](#see-also)

## NAME

ndctl−inject−smart − perform smart threshold/injection operations on a DIMM

## SYNOPSIS

*ndctl inject−smart*  \<dimm> \[\<options>]

## DESCRIPTION

A generic DIMM device object, named /dev/nmemX, is registered for each memory device indicated in the ACPI NFIT table, or other platform NVDIMM resource discovery mechanism.

ndctl−inject−smart can be used to set smart thresholds, and inject smart attributes.

## EXAMPLES

Set smart controller temperature and spares threshold for DIMM−0 to 32C, spares threshold to 8, and enable the spares alarm.

```
ndctl inject−smart −−ctrl−temperature−threshold=32 −−spares−threshold=8 −−spares−alarm nmem0
```

Inject a media temperature value of 52 and fatal health status flag for DIMM−0

```
ndctl inject−smart −−media−temperature=52 −−health=fatal nmem0
```

## OPTIONS

`−b, −−bus=`

Enforce that the operation only be carried on devices that are attached to the given bus. Where *bus* can be a provider name or a bus id number.

`−m, −−media−temperature=`

Inject  for the media temperature smart attribute.

`−M, −−media−temperature−threshold=`

Set  for the smart media temperature threshold.

`−−media−temperature−alarm=`

Enable or disable the smart media temperature alarm. Options are *on* or *off*.

`−−media−temperature−uninject`

Uninject any media temperature previously injected.

`−c, −−ctrl−temperature=`

Inject  for the controller temperature smart attribute.

`−C, −−ctrl−temperature−threshold=`

Set  for the smart controller temperature threshold.

`−−ctrl−temperature−alarm=`

Enable or disable the smart controller temperature alarm. Options are *on* or *off*.

`−−ctrl−temperature−uninject`

Uninject any controller temperature previously injected.

`−s, −−spares=`

Inject  for the spares smart attribute.

`−S, −−spares−threshold=`

Set  for the smart spares threshold.

`−−spares−alarm=`

Enable or disable the smart spares alarm. Options are *on* or *off*.

`−−spares−uninject`

Uninject any spare percentage previously injected.

`−f, −−fatal`

Set the flag to spoof fatal health status.

`−−fatal−uninject`

Uninject the fatal health status flag.

`−U, −−unsafe−shutdown`

Set the flag to spoof an unsafe shutdown on the next power down.

`−−unsafe−shutdown−uninject`

Uninject the unsafe shutdown flag.

`−N, −−uninject−all`

Uninject all possible smart fields/values irrespective of whether they have been previously injected or not.

`−v, −−verbose`

Emit debug messages for the error injection process

`−u, −−human`

Format numbers representing storage sizes, or offsets as human readable strings with units instead of the default machine−friendly raw−integer data. Convert other numeric fields into hexadecimal strings.

## COPYRIGHT

Copyright (c) 2016 − 2019, Intel Corporation. License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

## SEE ALSO

[ndctl−list(1)](https://docs.pmem.io/ndctl-user-guide/v71/ndctl-man-pages/ndctl-list),