Main Management Components Overview; Service Processor; Open Power Abstraction Layer - IBM Power Systems S822LC Technical Overview And Introduction

2.1 Main management components overview

Figure 2-1 shows the logical management flow of a Linux on Power Systems server.
Figure 2-1 Logical diagram of a Linux on Power Systems server
The service processor, or baseboard management controller (BMC), provides a hypervisor
and operating system-independent layer that uses the robust error detection and self-healing
functions that are built into the IBM POWER8 processor and memory buffer modules. OPAL is
the system firmware in the stack of POWER8 processor-based Linux on Power Systems
servers.

2.2 Service processor

The service processor, or BMC, is the primary control for autonomous sensor monitoring and
event logging features on the Power S822LC server.
BMC supports the Intelligent Platform Management Interface (IPMI V2.0) and Data Center
Management Interface (DCMI V1.5) for system monitoring and management.
BMC monitors the operation of the firmware during the boot process and also monitors the
hypervisor for termination. The firmware code update is supported through the BMC and IPMI
interfaces.

2.2.1 Open Power Abstraction Layer

For the 8335-GTB, only the OPAL Bare Metal (ECXX) is available.
For more information about OPAL skiboot, go to the following website:
https://github.com/open-power/skiboot
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IBM Power Systems S822LC for High Performance Computing

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