5137ch04.fm
Draft Document for Review October 14, 2014 10:19 am
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IBM Power Systems E870 and E880 Technical Overview and Introduction
By pulling it out to access the switches and viewing the LCD display
Here are several of the operator panel features:
A 2 x 16 character LCD display
Reset, enter, power On/Off, increment, and decrement buttons
Amber System Information/Attention, and a green Power LED
Blue Enclosure Identify LED
Altitude sensor
USB Port
Speaker/Beeper
The following functions are available through the operator panel:
Error information
Generate dump
View machine type, model, and serial number
Limited set of repair functions
Operating system service menu
The system diagnostic tests consist of IBM i service tools, stand-alone diagnostic tests that
are loaded from the DVD drive, and online diagnostic tests (available in AIX).
Online diagnostic tests, when installed, are a part of the AIX or IBM i 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. IBM i has a service tools problem log, IBM i
history log (QHST), and IBM i problem log.
The modes are as follows:
Service mode
This mode requires a service mode boot of the system and enables the checking of
system devices and features. Service mode provides the most complete self-check of the
system resources. All system resources, except the SCSI adapter and the disk drives that
are used for paging, can be tested.
Concurrent mode
This mode enables the normal system functions to continue while selected resources are
being checked. Because the system is running in normal operation, certain devices might
require additional actions by the user or a diagnostic application before testing can be
done.
Maintenance mode
This 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 that they are started. Maintenance mode requires that all activity on the operating
system is stopped. Run
shutdown -m
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.