I know this is a bit old but you can monitor the iDRAC with the IPMI protocol. SNMP is great and all but finding all the OIDs is painful and you need to configure Splunk to collect SNMP. Using IPMI is a pretty simple scripted input. Some of the metrics you can pull with IPMI is Ambient Temp, CPU temp, fan speed, etc.
Here is a video on how to set up and poll the iDRAC: https://www.youtube.com/watch?v=kaDMqczzwVs
I hope this...
JD
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