tools

ipmi

Introduce

The Intelligent Platform Management Interface (IPMI) is a standardized computer
system interface used by system administrators for out-of-band management of
computer systems and monitoring of their operation. It is a way to manage a
computer that may be powered off or otherwise unresponsive by using a network
connection to the hardware rather than to an operating system or login shell.

Why use

Use lm-sensor? 

[root@localhost ~]# sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:       +27.8°C  (crit = +106.0°C)                  
temp2:       +29.8°C  (crit = +106.0°C)                  

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +35.0°C  (high = +85.0°C, crit = +105.0°C)  
Core 0:        +32.0°C  (high = +85.0°C, crit = +105.0°C)  
Core 1:        +31.0°C  (high = +85.0°C, crit = +105.0°C)

Use dmidecode?

Install

On Centos 6.5

[root@localhost ~]# yum install OpenIPMI -y
[root@localhost ~]# yum install ipmitool -y
[root@localhost ~]# chkconfig ipmi on
[root@localhost ~]# service ipmi start
Starting ipmi drivers:                                     [  OK  ]
[root@localhost ~]# ls -l /dev/ipmi*
crw-rw----. 1 root root 245, 0 Feb  5 14:18 /dev/ipmi0
[root@localhost ~]# lsmod | grep ipmi
ipmi_devintf            7729  0 
[root@localhost ~]# modinfo ipmi_devintf
filename:       /lib/modules/2.6.32-431.el6.x86_64/kernel/drivers/char/ipmi/ipmi_devintf.ko
alias:          platform:ipmi_si
description:    Linux device interface for the IPMI message handler.
author:         Corey Minyard <minyard@mvista.com>
license:        GPL
srcversion:     592518D3E7F47DFC4EBEC9F
depends:        
vermagic:       2.6.32-431.el6.x86_64 SMP mod_unload modversions 
parm:           ipmi_major:Sets the major number of the IPMI device.  By default, or if you set it to zero, it will choose the next available device.  Setting it to -1 will disable the interface.  Other values will set the major device number to that value. (int)
[root@localhost ~]#

Use

  1. To check firmware version

    [root@localhost ~]# ipmitool mc info
Device ID                 : 20
Device Revision           : 1
Firmware Revision         : 0.8
IPMI Version              : 2.0
Manufacturer ID           : 9091
Manufacturer Name         : Unknown (0x2383)
Product ID                : 289 (0x0121)
Product Name              : Unknown (0x121)
Device Available          : yes
Provides Device SDRs      : no
Additional Device Support :
    Sensor Device
    SDR Repository Device
    SEL Device
    FRU Inventory Device
    IPMB Event Receiver
    Chassis Device
Aux Firmware Rev Info     : 
    0x00
    0x37
    0x00
    0x00

  2. Show sensor output

    [root@localhost ~]# ipmitool sdr list
CPU0_TEMP        | 25 degrees C      | ok
VCORE_CPU0       | 0.83 Volts        | ok
+1.5V_DDR3       | 1.52 Volts        | ok
PCH              | 1.04 Volts        | ok
+3.3V            | 3.42 Volts        | ok
+5V              | 5.14 Volts        | ok
+5VSB            | 5.07 Volts        | ok
VBAT             | 3.34 Volts        | ok
+12V_MONITOR     | 12.40 Volts       | ok
THERMAL01        | 35 degrees C      | ok
THERMAL02        | 31 degrees C      | ok
CPU_FAN1         | 5900 RPM          | ok
SYS_FAN1         | 0 RPM             | nr
SYS_FAN2         | 0 RPM             | nr
SYS_FAN3         | 0 RPM             | nr
Watchdog         | Not Readable      | ns
[root@localhost ~]# ipmitool sdr type list
Sensor Types:
    Temperature                 Voltage                  
    Current                     Fan                      
    Physical Security           Platform Security        
    Processor                   Power Supply             
    Power Unit                  Cooling Device           
    Other                       Memory                   
    Drive Slot / Bay            POST Memory Resize       
    System Firmwares            Event Logging Disabled   
    Watchdog                    System Event             
    Critical Interrupt          Button                   
    Module / Board              Microcontroller          
    Add-in Card                 Chassis                  
    Chip Set                    Other FRU                
    Cable / Interconnect        Terminator               
    System Boot Initiated       Boot Error               
    OS Boot                     OS Critical Stop         
    Slot / Connector            System ACPI Power State  
    Watchdog                    Platform Alert           
    Entity Presence             Monitor ASIC             
    LAN                         Management Subsystem Health
    Battery                     Session Audit            
    Version Change              FRU State                
[root@localhost ~]# ipmitool sdr type Fan
CPU_FAN1         | 31h | ok  |  7.1 | 5900 RPM
SYS_FAN1         | 32h | lnr |  7.2 | 0 RPM
SYS_FAN2         | 33h | lnr |  7.5 | 0 RPM
SYS_FAN3         | 34h | lnr |  7.6 | 0 RPM
[root@localhost ~]# ipmitool sdr type Temperature
CPU0_TEMP        | 21h | ok  |  7.1 | 25 degrees C
THERMAL01        | 23h | ok  |  7.1 | 35 degrees C
THERMAL02        | 24h | ok  |  7.1 | 31 degrees C

  3. Display/reset password for default root user (userid ‘2’)

    ipmitool user list 1
ipmitool user set password 2 <new_password>

Display/configure lan settings

ipmitool lan print 1
ipmitool lan set 1 ipsrc [ static | dhcp ]
ipmitool lan set 1 ipaddr 192.168.1.101
ipmitool lan set 1 netmask 255.255.255.0
ipmitool lan set 1 defgw ipaddr 192.168.1.254

Reference