Reference Information; Stopping A System; Stopping A System That Is Not Managed By An Hmc - IBM Power Systems 5887 Manual

Reference information

Use the information in this section as needed to complete enclosure installation and configuration tasks.

Stopping a system

Learn how to stop a system as a part of a system upgrade or service action.
About this task
Attention: Using either the power-on button on the control panel or entering commands at the
Hardware Management Console (HMC) to stop the system can cause unpredictable results in data
files. Also, the next time you start the system, it might take longer if all applications are not ended
before stopping the system.
Note: If the system is an IBM Elastic Storage Server, work with the customer to stop the system.

Stopping a system that is not managed by an HMC

You might need to stop the system to complete another task. If your system is not managed by the
Hardware Management Console (HMC), use these instructions to stop the system by using the power
button or the Advanced System Management Interface (ASMI).
Before you begin
Before you stop the system, follow these steps:
1. Ensure that all jobs are completed and end all applications.
2. 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 alternative method.
Stopping a system by using the control panel
You might need to stop the system to complete another task. If your system is not managed by the
Hardware Management Console (HMC), use the instructions in this topic to stop the system by using the
power button.
Procedure
1. Log in to the host partition as a user with the authority to run the shutdown or pwrdwnsys (Power
Down System) command.
2. On 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 off each of the secondary partitions. Then, use the
PWRDWNSYS command to power off the primary partition.
The command stops the operating system. Choose from the following options:
• If the system power turns off, the power-on light begins to slowly flash, and the system goes into a
standby state, continue with step "5" on page 38.
• If your system does not power off when the last partition powers off, continue with step "3" on page
37.
3. Open the front rack door, if necessary.
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Copyright IBM Corp. 2018, 2020 37