Sun Microsystems SPARCcenter 2000 Service Manual page 51

Module A
Module B
Diagnostic (yellow)
Figure 2-1 LEDs on System Board
In multiple-board configurations, when the system is powered on for the first
time, OBP may prompt you to select a system board to become the new master.
This prompt will appear only if:
•
The system does not recognize any board as the system master.
•
More than one board is recognized as being qualified to function as the
system master.
Caution – To see the OBP message prompt, the system master board must be
!
connected to a terminal. If the terminal is connected to the wrong board, the
message will not appear. The system may seem to be locked up, but OBP is
only pausing, waiting for you to respond to the prompt.
The following example for a three board system shows the prompt and the
recommended responses (0 and y).
ttya initialized
Need to select system master from the following boards:
Board#0 -- nvram slave, Prom Version 2.11
Board#1 -- nvram slave, Prom Version 2.11
Board#2 -- nvram slave, Prom Version 2.11
Diagnostics and Commands for Troubleshooting
PA
PB
0
1
2
3
4
5
6
7
LEDs
2
0
1
A
2
B
3
2-7