Chapter 4
OpenBoot PROM Features
59
Graceful Shutdown
The preferred method of reaching the
ok
prompt is to shut down the operating
system by typing an appropriate command (for example, the
init
, or
uadmin
commands) as described in Solaris system administration documentation.
For example, if you type
init 0
at the Solaris prompt the system gradually takes
you to the
ok
prompt:
If the operating system is already halted, you can use the start /SP/
console
command without using
set /HOST send_break_action=break
to reach the
ok
prompt.
Gracefully shutting down the system prevents data loss, enables you to warn users
beforehand, and causes minimal disruption. You can usually perform a graceful
shutdown, provided the Solaris OS is running and the hardware has not experienced
serious failure.
You can perform a graceful system shutdown from the ILOM service processor
command prompt using the
stop /SYS
command.
You can also use the system Power button to initiate a graceful system shutdown.
Graceful Reset of the Control Domain With ILOM
reset
Command
Use the ILOM
reset
command to gracefully reset the control domain and obtain
the
ok
prompt. If a graceful shutdown is not possible, a forced shutdown is
performed. To use this method to obtain the
ok
prompt, you must first set the
control domain
auto-boot
option to
false
. For example:
Manual System Reset
Caution –
Forcing a manual system reset results in loss of system state data and
should be attempted only as a last resort. After a manual system reset, all state
information is lost, which inhibits troubleshooting the cause of the problem until the
problem reoccurs.
ok
->
set /HOST/domain/control auto-boot=disable
->
reset /HOST/domain/control
