The following procedure describes how to stop a system that is not managed by a Hardware Management Console (HMC).
Prepare to stop the system
Before you stop the system, do the following:
- If an Integrated xSeries® Adapter (IXA) is present on the system, shut it down using i5/OS® options.
- Ensure that all jobs are completed and end all applications.
- Ensure that the operating system is stopped. Failure to do so can result in the loss of data.
- Record the IPL type and IPL mode from the control panel display to help you return the system to this state when the installation or replacement procedure is completed.
- Write down the information displayed on the control panel if you are stopping your system due to an error or to make a repair. For more information, see Collecting reference codes and system information.
Stop the system
To stop a system, follow these steps:
- Log in to the system as a user with the authority to run the shutdown or pwrdwnsys (Power Down System) command.
- At the command line, enter one of the following commands:
- If your system is running AIX®, type shutdown.
- If your system is running i5/OS, type pwrdwnsys *immed.
- If your system is running Linux®, type shutdown -h now.
The command stops the operating system. The system power turns off, the power-on light begins to slowly blink, and the system goes into a standby state.
- Set the power switches of any devices connected to the system to off.
- Unplug any power cables that are attached to the unit from electrical
outlets. Ensure that you unplug power cables from peripheral devices, such
as printers and expansion units. Important: The system might be equipped with a second power supply. Before continuing with this procedure, ensure that all power sources to the system have been completely disconnected.
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