3
No Auto Power-On When Power is Removed and
Restored Within 10 Seconds
If you disconnect the server from its power source while it is powered on, and then
reconnect it within 10 seconds of the disconnection, the server automatically
attempts to power on. However, it does not reinitialize successfully and hangs after
giving the following console output:
If your system hangs when you have disconnected power and then restored it within
10 seconds of the disconnection, do either of the following:
■
Type a carriage return, and then type the LOM escape sequence (a hash character,
followed by a dot: #.). Then, at the LOM prompt, type
poweroff
. Finally, at the
next LOM prompt, type
poweron
. The system will power on.
■
Hold the rocker switch in the OFF position until the console reports the time-
stamped
host power off
LOM event, then put the rocker switch into the ON
position. The system will then power on.
If you have the NVRAM
diag-switch?
parameter set to
true
(by default, it is set
to
false
and the console output is as shown above), the system will provide
additional, Open Boot PROM output during the boot process. In this case, if you
restore power within 10 seconds of removing it, the system hangs after reporting the
following message:
LOMlite starting up.
CPU type: H8/3437S, mode 3
Ram-test: 2048 bytes OK
Initialising i2c bus: OK
Searching for EEPROMs: 50(cfg)
I2c eeprom @50: OK
i2c bus speed code 01... OK
Probing for lm80s: none
Probing for lm75s: 48
Initialising lm75 @48: OK
System functions: PSUs fans breakers rails gpio temps host CLI ebus
clock
Unexpected reset
LOMlite console
lom>
LOM event: +0h0m0s LOM FAULT: unexpected reset
lom>
LOM event: +0h0m0s host power on
