IPMI

Wayne_Weilnau at Dell.com Wayne_Weilnau at Dell.com
Thu Aug 5 14:46:59 CDT 2010


When a BMC/iDrac is in a system, the sensors are physically connected to the BMC/iDrac.  There is no mechanism to bypass the BMC/iDrac to access the sensors directly.

Wayne Weilnau
Systems Management Technologist
Dell | OpenManage Software Development 

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-----Original Message-----
From: linux-poweredge-bounces-Lists On Behalf Of Rahul Nabar
Sent: Thursday, August 05, 2010 2:39 PM
To: Alexander Dupuy
Cc: linux-poweredge-Lists
Subject: Re: IPMI

On Wed, Aug 4, 2010 at 2:33 PM, Alexander Dupuy <alex.dupuy at mac.com> wrote:
> My experience with Dell server systems that have BMC or iDRAC cards standard
> (9th/10th/11th gen, at least) is that lm_sensors doesn't have any usable
> sensors to monitor, as Dell have wired them all up to the BMC instead (AMD
> CPU temperature sensors builtin to the CPU itself perhaps being one
> exception - but all my Dell servers are Intel).

I'm not sure about the hardware details but is it difficult to allow
both lm_sensors and the BMC to access the sensors? WHy does Dell block
the lm_sensors access? Is there a reason? Maybe someone at Dell can
elaborate?

-- 
Rahul

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