how to enable BMC sensors

Wayne_Weilnau at Dell.com Wayne_Weilnau at Dell.com
Thu May 20 13:20:18 CDT 2010


Zichao,
Most of these sensors are already enabled.  Many of the sensors have Reading and Unit values of N/A because they are discrete sensors.  They only report good/bad.  They do not report an actual voltage.  A failed voltage would be indicated by an event value of "State Asserted".  A couple of the sensors are disabled.  These are disabled because they are intended for internal Dell use (such as controlling fan speeds) or because the specific system you are using does not have that sensor.  Unfortunately IPMI and IPMI Tool are not very user friendly.  If you are using a Dell version of IPMI Tool (its available on the Systems Management DVD), there should be an option to use Dell extensions that will make the output a little more user friendly.   I don't remember the exact option, but is probably something like -delloem.

Wayne Weilnau
Systems Management Technologist
Dell | OpenManage Software Development
office 1 512 728 1085

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From: linux-poweredge-bounces-Lists On Behalf Of Zhichao Li
Sent: Thursday, May 20, 2010 11:53 AM
To: linux-poweredge-Lists
Subject: how to enable BMC sensors

Hi:

I am trying to get information about the servers, using ipmi-sensor. But,
lots of the information are N/A, which means the type of sensors are not
enabled. Is the sensor by default not enabled or how should I enable them?

The server is bought from Dell, actually.

Can anyone help me? Thanks,

The following is what I get using ipmi-sensors:
[root at gr3 ~]#  ipmi-sensors --sensor-types=voltage
ID | Name             | Type    | Reading    | Units | Event
8  | VCORE            | Voltage | N/A        | N/A   | 'State Deasserted'
9  | VCORE            | Voltage | N/A        | N/A   | N/A
10 | 0.75 VTT CPU2 PG | Voltage | N/A        | N/A   | N/A
11 | 0.75 VTT CPU1 PG | Voltage | N/A        | N/A   | 'State Deasserted'
13 | 1.5V PG          | Voltage | N/A        | N/A   | 'State Deasserted'
14 | 1.8V PG          | Voltage | N/A        | N/A   | 'State Deasserted'
15 | 3.3V PG          | Voltage | N/A        | N/A   | 'State Deasserted'
16 | 5V PG            | Voltage | N/A        | N/A   | 'State Deasserted'
17 | MEM PG           | Voltage | N/A        | N/A   | N/A
18 | MEM PG           | Voltage | N/A        | N/A   | 'State Deasserted'
19 | VTT              | Voltage | N/A        | N/A   | N/A
20 | VTT              | Voltage | N/A        | N/A   | 'State Deasserted'
21 | 0.9V PG          | Voltage | N/A        | N/A   | 'State Deasserted'
22 | 1.8 PLL  PG      | Voltage | N/A        | N/A   | N/A
23 | 1.8 PLL PG       | Voltage | N/A        | N/A   | 'State Deasserted'
24 | 8.0 V PG         | Voltage | N/A        | N/A   | 'State Deasserted'
25 | 1.1 V PG         | Voltage | N/A        | N/A   | 'State Deasserted'
26 | 1.0 LOM PG       | Voltage | N/A        | N/A   | 'State Deasserted'
27 | 1.0 AUX PG       | Voltage | N/A        | N/A   | 'State Deasserted'
28 | PFault Fail Safe | Voltage | N/A        | N/A   | Unknown
29 | 1.05 V PG        | Voltage | N/A        | N/A   | 'State Deasserted'
51 | Voltage 1        | Voltage | 210.00     | V     | 'OK'
52 | Voltage 2        | Voltage | N/A        | V     | Unknown

Regards,

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