---
name: "nut-ipmipsu"
section: "8"
platform: "linux"
package: "nut-ipmi"
version: "2.8.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nut-ipmipsu"
---

# nut-ipmipsu(8)

Driver for IPMI Power Supply Units (PSU)

## NAME

nut-ipmipsu - Driver for IPMI Power Supply Units (PSU)

## SYNOPSIS

**nut-ipmipsu** -h

**nut-ipmipsu** -a *PSU\_NAME* \[*OPTIONS*\]

**Note**\

This driver is experimental, and still a work-in-progress. Feedback is encouraged.

**Note**\

This man page only documents the hardware-specific features of the nut-ipmipsu driver. For information about the core driver, see [**nutupsdrv**(8)](/nutupsdrv/8.md).

## SUPPORTED HARDWARE

This driver should support a wide range of PSUs through local IPMI interface.

nut-ipmipsu currently use the GNU FreeIPMI project, for IPMI implementation.

## EXTRA ARGUMENTS

This driver doesn’t support any optional settings.

## INSTALLATION

This driver is not built by default. You can build it by using "configure --with-ipmi=yes".

You also need to give proper permissions on the local IPMI device file (/dev/ipmi0 for example) to allow the NUT user to access it.

An udev rules file (nut-ipmipsu.rules) is provided and automatically installed on udev enabled system. This file is generally installed in /etc/udev/rules.d/ or /lib/udev/rules.d/ on newer systems, to address the permission settings problem. For more information, refer to nut/scripts/udev/README.

## INSTANT COMMANDS

This driver doesn’t support any instant commands.

## IMPLEMENTATION

The "port" value is used to identify the PSU. For instance, to target FRU 0x2, use the following in **ups.conf**:

```
[pdu]
        driver = nut-ipmipsu
        port = id2
```

This driver will report various information related to a PSU, including:

• manufacturer, model, serial and part numbers,

• nominal voltage and frequency,

• actual current and voltage,

• status of the PSU:

• *OL* means that the PSU is present and providing power,

• *OFF* means that the PSU is present but not providing power (power cable removed),

• *stale* (no data) means that the PSU is not present (i.e. physically removed).

Here is an example output for a Dell r610 server:

```
device.mfr: DELL
device.mfr.date: 01/05/11 - 08:51:00
device.model: PWR SPLY,717W,RDNT
device.part: 0RN442A01
device.serial: CN179721130031
device.type: psu
driver.name: nut-ipmipsu
driver.parameter.pollinterval: 2
driver.parameter.port: id2
driver.version: 2.6.1-3139M
driver.version.data: IPMI PSU driver
driver.version.internal: 0.01
input.current: 0.20
input.frequency.high: 63
input.frequency.low: 47
input.voltage: 232.00
input.voltage.maximum: 264
input.voltage.minimum: 90
ups.id: 2
ups.realpower.nominal: 717
ups.status: OL
ups.voltage: 12
```

## AUTHOR

Arnaud Quette \<arnaud.quette@free.fr\>

## SEE ALSO

### The core driver:

[**nutupsdrv**(8)](/nutupsdrv/8.md)

### Internet resources:

• The NUT (Network UPS Tools) home page: https://www.networkupstools.org/

• GNU FreeIPMI home page: http://www.gnu.org/software/freeipmi/