Reference information

Reference information tells you more about messages, message queues, logs, CL commands, problem-handling menus, Authorized Program Analysis Reports (APARs), and how to determine the primary or alternative console.

Details: Messages
The details of messages, such as the types of messages and the ways to manage messages, can help you better understand and solve the problems that occur on your system.
Details: Message queues
You have different types of message queues to receive messages. You can manage the message queues in various ways.
Details: Logs
Logs include job logs, history logs, and problem logs.
Details: CL commands for problem handling
You can use several problem analysis commands when you experience problems with your system.
Details: Problem-handling menus
The problem-handling menus can be used to analyze problems that occur on your system.
Details: Authorized program analysis report
You can use these parameters for understanding the authorized program analysis report (APAR) command.
Determining the primary or alternative consoles
If the Operations Console has been configured as the primary console, the system starts the Operations Console. If the Operations Console has not been configured, the primary console is a workstation attached to the first input/output processor (IOP) that is capable of supporting workstations.
Replacing the battery power unit on models 5xx and expansion units FC 507x and FC 508x
To remove or replace the battery power unit on models 5xx, expansion unit feature codes (FCs) 507x and 508x, follow these steps.

Parent topic: Troubleshooting