The Service Processor provides the ability to view and change the power-on settings of running system. Service Processor also monitors the operating system to confirm that its running or hanged.
Category: LPAR and Virtualization
Introduction To HMC
Dynamically changing LPARs (Video)
The biggest benefit for LPARs is that they can be managed online. The CPU, Memory and adapters can be allocated on the spot without downtime, offcourse due care has to be taken. The process is also referred to as DLPAR. DLPAR is nothing but a daemon which runs on server. The name of the process is IBM.drm. Without this DLPAR is not possible, so far as I know.