IBM @Server pSeries 630 6C4, Service Manual

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Stopping and Starting Your System
The stopping and starting of your system is system configuration dependent. Read through the following
titled sections and follow the instructions in the section that is appropriate for your system configuration.
Stopping the System without an HMC Attached
Attention: When shutting down your system to install options, shut down all applications first and then
shut down the operating system. The system power turns off and the system goes into standby mode
when the operating system is shut down. Before removing power from the system, ensure that the
shutdown process is complete. Failure to do so can result in the loss of data. Some option-installation
procedures do not require the system to be stopped for installation. The option-installation procedures in
this chapter will direct you here if stopping the system is required.
1. Log in to the system as root user.
2. Have your system administrator stop all applications that are running on the system.
3. At the command line, ask the administrator to type one of the following commands:
v
If your system is running AIX, type
shutdown
v
If your system is running Linux, type
shutdown now -h
4. After you shut down the operating system, set the power switches of any attached devices to Off.
Stopping the System with an HMC Attached and AIX Installed
The HMC user interface provides a power-off function to turn off the power to the system. If the system is
logically partitioned, AIX in each partition may be stopped individually to make repairs. If the system power
must be turned off, all of the logical partitions must be stopped.
AIX provides hot-swap procedures for adapters and devices that support hot-swap removal and
installation. You do not have to shut down a partition that controls an adapter or device that supports
hot-swap. Individual power components and fans can be serviced with the power on for power systems
equipped with redundant power and cooling. Before servicing the system, check removal and installation
procedures.
If the system is operating in a full system partition under AIX, typing the shutdown command causes the
system to shut down and power off. The -F flag shuts down the system without warning system users.
Check with the system administrator before using this command. If you cannot use this method, you can
power off the system by pressing the power button on the operator panel or typing the appropriate
command at the HMC.
Attention: Using the power button on the operator panel or commands at the HMC to power off the
system can cause unpredictable results in the data files. The next IPL will also take longer to complete if
all applications in all partitions are not stopped beforehand.
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Eserver
pSeries 630 Model 6C4 and Model 6E4 Service Guide