POWER7 information

Stopping a system that is not managed by an HMC or an SDMC

You might need to stop the system to perform another task. If your system is not managed by the Hardware Management Console (HMC) or the IBM® Systems Director Management Console (SDMC), use these instructions to stop the system by using the power button or the Advanced System Management Interface (ASMI).

Before you stop the system, follow these steps:
  1. If an Integrated xSeries Adapter (IXA) is present on the system, shut it down using IBM i options.
  2. Ensure that all jobs are completed and end all applications.
  3. Ensure that the operating system is stopped.
    Attention: Failure to do so can result in the loss of data.
  4. If a Virtual I/O Server (VIOS) logical partition is running, ensure that all clients are shut down or that the clients have access to their devices by using an alternate method.

The following procedure describes how to stop a system that is not managed by the HMC or the SDMC.

  1. Log in to the system as a user with the authority to run the shutdown or pwrdwnsys (Power Down System) command.
  2. At the command line, enter one of the following commands:
    • If your system is running the AIX® operating system, type shutdown.
    • If your system is running the Linux operating system, type shutdown -h now.
    • If your system is running the IBM i operating system, type PWRDWNSYS. If your system is partitioned, use the PWRDWNSYS command to power down each of the secondary partitions. Then, use the PWRDWNSYS command to power down the primary partition.

    The command stops the operating system. The system power turns off, the power-on light begins to slowly flash, and the system goes into a standby state.

  3. At the Linux command line, type shutdown -h now.

    The command stops the operating system. The system power turns off, the power-on light begins to slowly flash, and the system goes into a standby state.

  4. Record the IPL type and the IPL mode from the control panel display to help you return the system to this state when the installation or replacement procedure is completed.
  5. Set the power switches of any devices connected to the system to off.
  6. Unplug any power cables that are attached to the peripheral devices, such as printers and expansion units.
    Important: The system may be equipped with a second power supply. Before continuing with this procedure, ensure that all power sources to the system have been disconnected.

    (L003)

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Parent topic: Controlling the system power using the control panel

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Last updated: Mon, April 24, 2017