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System Controller On Functions
85
Four information options are available to the user when the key is in the On
(middle) position:
• the Master CPU Selection menu
• the Event History Log menu
• the Boot Status menu
• the CPU Activity Display
The information displays are further described in the following sections,
table, and figure.
The Master CPU Selection Menu
This menu monitors the current state of the system in the boot arbitration
process. Table 5-1 shows the messages that may appear during and after the
boot process.
The Event History Log Menu
The System Controller uses space in NVRAM to store up to 10 messages. All
events logged by the System Controller are stored in the NVRAM log file.
After the system successfully boots, the contents of the System Controller log
file are transferred to
/var/adm/SYSLOG by the master CPU.
Three basic types of system occurrence are logged in the history menu:
• System error messages are issued in response to a system-threatening
event, and the controller shuts down the system immediately after
flagging the master CPU.
• System events that need attention are immediately transmitted to the
master CPU; however, no shutdown is implemented by the System
Controller.
• System Controller internal errors are monitored and logged in the
menu just like system errors and events. They are transferred to
/var/adm/SYSLOG by the CPU just like other errors. If the System
Controller internal error is significant, an internal reinitialization will