4405ch04 Continuous availability and manageability.fmDraft Document for Review September 2, 2008 5:05 pm
116 IBM Power 570 Technical Overview and Introduction
4.5 Manageability
Several functions and tools help manageability, and can allow you to efficiently and effectively
manage your system.
4.5.1 Service processor
The service processor is a controller running its own operating system. It is a component of
the service interface card.
The service processor operating system has specific programs and device drivers for the
service processor hardware. The host interface is a processor support interface connected to
the POWER6 processor. The service processor is always working, regardless of main system
unit’s state. The system unit can be in the following states:
Standby (Power off)
Operating, ready to start partitions
Operating with running logical partitions
The service processor is used to monitor and manage the system hardware resources and
devices. The service processor checks the system for errors, ensuring the connection to the
HMC for manageability purposes and accepting Advanced System Management Interface
(ASMI) Secure Sockets Layer (SSL) network connections. The service processor provides
the ability to view and manage the machine-wide settings using the ASMI, and allows
complete system and partition management from the HMC.
The service processor uses two Ethernet 10/100 Mbps ports:
Both Ethernet ports are only visible to the service processor and can be used to attach the
server to an HMC or to access the ASMI. The ASMI options can be accessed through an
HTTP server that is integrated into the service processor operating environment.
Both Ethernet ports have a default IP address:
– Service processor Eth0 or HMC1 port is configured as 169.254.2.147 (This applies to
the service processor in drawer 1 or the top drawer.)
– Service processor Eth1 or HMC2 port is configured as 169.254.3.147 (This applies to
the service processor in drawer 1 or the top drawer.)
– Service processor Eth0 or HMC1 port is configured as 169.254.2.146 (This applies to
the service processor in drawer 2 or the second drawer from top to bottom.)
– Service processor Eth0 or HMC1 port is configured as 169.254.3.146 (This applies to
the service processor in drawer 2 or the second drawer from top to bottom.)
4.5.2 System diagnostics
The system diagnostics consist of stand-alone diagnostics, which are loaded from the
DVD-ROM drive, and online diagnostics (available in AIX).
Online diagnostics, when installed, are a part of the AIX operating system on the disk or
server. They can be booted in single-user mode (service mode), run in maintenance
Note: The service processor enables a system that will not boot to be analyzed. The error
log analysis can be performed from either the ASMI or the HMC.
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