Detecting problems

 

You can detect whether problems have occurred on your system in several ways. Most of the time, you receive a message or a system reference code (SRC), which reports the problem that has been detected to you. You can also use the message queues and logs to gather more information.

• System reference codes
  A system reference code (SRC) is a set of eight characters that identifies the name of the system component that detects the error codes and the reference code that describes the condition.

• Messages
  Messages are communications that are sent from one person or program to another. Whether you are a system operator or user, you can communicate on your system by sending and receiving messages. System programs use messages to communicate system conditions.

• Message queues
  A message queue is like a mail box for messages.

• Logs
  The i5/OS^® licensed program records certain kinds of events and messages for use in diagnosing problems. A log is a special kind of database file that is used by the system to record this information.

• Watch for event function
  The watch for event function enhances your ability to detect and react to problems represented by specific messages or Licensed Internal Code log entries. The watch for event function notifies you when the specified event (message or Licensed Internal Code log entry) occurs, and then calls the specified exit program to take the action you want.

 

Parent topic:

Troubleshooting

Related concepts
How your system manages problems