Service processor

The service processor is used to facilitate connectivity.

The following table provides an overview of the service processor.

Table 1. Service processor overview
Service processor	Details
Description	Cluster Systems Management (CSM) and the managing Hardware Management Console (HMC) must be able to communicate with the service processor over the service virtual local area network (VLAN). For 9125-F2A servers, this connectivity is facilitated through an internal hardware VLAN within the frame, which connects to the service VLAN.
Documentation	IBM® System Users Guide
When to use	The service processor is in the background most of the time and the HMC and CSM provide the information. The service processor is sometimes accessed under the direction of product engineering.
Host	IBM system
How to access	The service processor is primarily used by service personnel. Direct access is rarely required, and is done under the direction of product engineering by using the Advanced System Management Interface (ASMI). Otherwise, CSM and the HMC are used to communicate with the service processor.