Specifications

5102ch04.fm Draft Document for Review May 12, 2014 12:46 pm
130 IBM Power System S822 Technical Overview and Introduction
The operator panel
The service processor provides an interface to the operator panel, which is used to display
system status and diagnostic information.
The operator panel can be accessed in two ways:
򐂰 By using the normal operational front view.
򐂰 By pulling it out to access the switches and viewing the LCD display.
Several of the operator panel features include the following items:
򐂰 A 2 x 16 character LCD display
򐂰 Reset, enter, power On/Off, increment, and decrement buttons
򐂰 Amber System Information/Attention, green Power LED
򐂰 Blue Enclosure Identify LED on the Power S822
򐂰 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 diagnostics consist of stand-alone diagnostics that are loaded from the DVD
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.
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
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 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 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.