Chapter 1 Configuring the System Console 9

Access Through Multiple Controller Sessions

Up to five ALOM system controller sessions can be active concurrently, one session
through the serial management port and up to four sessions through the network
management port. Users of each of these sessions can issue commands at the sc>
prompt. However, only one user at a time can access the system console, and then
only if the system console is configured to be accessible through the serial and
network management ports. For more information, see:
■“Accessing the System Controller” on page 16
■“Activating the Network Management Port” on page 17
Any additional ALOM system controller sessions afford passive views of system
console activity, until the active user of the system console logs out. However, the
console -f command, if you enable it, allows users to seize access to the system
console from one another. For more information, see the Advanced Lights Out
Manager User’s Guide (817-5481-xx).

Reaching the sc> Prompt

There are several ways to get to the sc> prompt:
■If the system console is directed to the serial management and network
management ports, you can type the ALOM system controller escape sequence
(#.).
■You can log in directly to the ALOM system controller from a device connected to
the serial management port. See “Accessing the System Controller” on page 16.
■You can log in directly to the ALOM system controller using a connection through
the network management port. See “Activating the Network Management Port”
on page 17.
OpenBoot ok Prompt
A Netra 440 server with the Solaris OS installed is capable of operating at different
run levels. A synopsis of run levels follows. For a full description, refer to the Solaris
system administration documentation.
Most of the time, you operate a Netra 440 server at run level 2 or run level 3, which
are multiuser states with access to full system and network resources. Occasionally,
you might operate the system at run level 1, which is a single-user administrative
state. However, the lowest operational state is run level 0. At this state, it is safe to
turn off power to the system.