Pop quiz: What percentage of Power servers run Linux?
brian_s 270002K5X3 Visits (2921)
Answer: 100% of them.... but not necessarily how you are thinking.
The service processor(s) on Power servers are running Linux. The service processor is a small management computer that runs on a 32 bit Power CPU. So when you pull up the ASMI webpage it is being served up by a Linux OS, and the OS controlling the front control panel on your Power server is Linux.
Here is a link to a IBM document that confirms what is running on the Service Processor: