History logs
The history log contains the information about the system operation and the system status.
The history log tracks high-level activities such as the start and completion of jobs, device status changes, system operator messages, and security violations. The information is recorded in the form of messages. These messages are stored in files that are created by the system.
History logs help you track and control the system activities. If you maintain an accurate history log, you can monitor specific system activities that help analyze problems. History logs differ from job logs. Job logs record the sequential events of a job. History logs record certain operational and status messages that relate to all jobs in the system.
You can start your investigation of a problem by viewing the history log and then referring to a specific job log for details.
- Displaying the list of history log files
To view a list of history log files, use the Display Object Description (DSPOBJD) command.- Displaying the contents of the QHST history log
The history log QHST contains the past system-operator messages, device status, job-status changes, and program-temporary-fix activities that are stored as system messages.
Parent topic:
Details: LogsRelated concepts
Job logs