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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.
Note: The service processor enables a system that does not boot to be analyzed. The
error log analysis can be performed from either the ASMI or the HMC.
The service processor uses two Ethernet 10/100 Mbps ports that have:
Visibility 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.
A default IP address:
– Service processor Eth0 or HMC1 port is configured as 169.254.2.147
– Service processor Eth1 or HMC2 port is configured as 169.254.3.147
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
mode, or run concurrently (concurrent mode) with other applications. They have access to
the AIX error log and the AIX configuration data.
– Service mode, which requires a service mode boot of the system, enables the
checking of system devices and features. Service mode provides the most complete
checkout of the system resources. All system resources, except the SCSI adapter and
the disk drives used for paging, can be tested.
– Concurrent mode enables the normal system functions to continue while selected
resources are being checked. Because the system is running in normal operation,
some devices might require additional actions by the user or diagnostic application
before testing can be done.
– Maintenance mode enables the checking of most system resources. Maintenance
mode provides the same test coverage as service mode. The difference between the
two modes is the way they are invoked. Maintenance mode requires that all activity on
the operating system be stopped. The shutdown -m command is used to stop all activity
on the operating system and put the operating system into maintenance mode.
The system management services (SMS) error log is accessible on the SMS menus. This
error log contains errors that are found by partition firmware when the system or partition
is booting.
The service processor's error log can be accessed on the ASMI menus.
You can also access the system diagnostics from a Network Installation Management
(NIM) server.
4.5.3 Electronic Service Agent
Electronic Service Agent and the IBM Electronic Services Web portal comprise the IBM
Electronic Service solution. IBM Electronic Service Agent is a no-charge tool that proactively
monitors and reports hardware events, such as system errors, performance issues, and
Chapter 4. Continuous availability and manageability
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