FUJITSU T5140 - Manual (Page 46)

24 SPARC Enterprise T5140 and T5240 Servers Administration Guide • February 2008
Reaching the -> Prompt
There are several ways to get to the -> prompt:
■ If the system console is directed to the serial management and network
management ports, you can type the ILOM escape sequence (#.).
■ You can log in directly to the service processor from a device connected to the
serial management port. See
“Accessing the Service Processor” on page 8 .
■ You can log in directly to the service processor using a connection through the
network management port. See
“Activating the Network Management Port” on
page 9 .
OpenBoot ok Prompt
A SPARC Enterprise T5140 or T5240 server with the Solaris OS installed operates at
different run levels. For a full description of run levels, refer to the Solaris system
administration documentation.
Most of the time, you operate a SPARC Enterprise T5140 or T5240 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.
When a SPARC Enterprise T5140 or T5240 server is at run level 0, the ok prompt
appears. This prompt indicates that the OpenBoot firmware is in control of the
system.
There are a number of scenarios under which OpenBoot firmware control can occur:
■ By default, before the operating system is installed the system comes up under
OpenBoot firmware control.
■ When the auto-boot? OpenBoot configuration variable is set to false, the
system boots to the ok prompt.
■ When the operating system is halted, the system transitions to run level 0 in an
orderly way.
■ When the operating system crashes, the system reverts to OpenBoot firmware
control.
■ During the boot process, when there is a serious hardware problem that prevents
the operating system from running, the system reverts to OpenBoot firmware
control.