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44 Sun Fire V100 Server User’s Guide • December 2001
LOM commands enable you to:
■ Power the server on or to standby mode.
■ Monitor the server’s temperature and the status of its power supply, fans, internal
voltage rails, fault LED, and alarms, even when the server is in standby mode.
■ Turn a Fault LED on.
■ Configure the server to restart automatically after a lockup.
These LOM facilities are provided by the LOM device, which in the Sun Fire V100
server is contained on the system board. As long as the server is connected to a
power supply, even if it is not powered on, you will see the lom> prompt at your
terminal. This is because the LOM device uses standby power and remains active
even when the server is not powered on.
There are two ways to interrogate the LOM device or to send it commands to
perform. You can do either of the following:
■ Issue LOM commands from the lom> shell prompt. (Explained in this chapter.)
■ Issue LOM-specific Solaris commands from the console prompt. (Explained in
Chapter 6.)
Using LOM Commands
To use the LOM facilities either remotely or locally, first establish a terminal
connection to the A LOM port on the server. For details on how to do this, see
“Setting Up a Console Connection to the Server” on page 20.
With the server connected to a power source, but not powered on, and with a
terminal connected to the A LOM port, you will see the lom> prompt.
When you power on the server, the prompt will change to the Solaris console
prompt. For details on how to get back to the lom> prompt, see “To Display the
lom> Prompt” on page 46.