There are two types of logs for messages: job logs and history logs.
A job log contains information related to requests entered for a job. The system history log (QHST) contains system data, such as a history of job start and end activity on your system.
Each job has an associated job log.
The job log can contain the following items for the job:
The commands in the job.
The commands in a CL program if the CL program was created with the LOG (*YES) option or with the LOG (*JOB) option and a Change Job (CHGJOB) command is run with the LOGCLPGM (*YES) option.
All messages and message help sent to the requester and not removed from the call message queues.
Details
Working with i5/OS JOBLOG (job logs)
Most Zend Core jobs do not log messages to the i5/OS job logs instead the errors are written to the product log files. (See: ‘/usr/local/zend/apache2/logs’ and ‘/www/zendcore/logs’)
Since PHP processes on i5/OS as well as certain applications are accessing a local i5/OS resource service that runs in its own job (i.e. TCP/IP servers – QSQSRVR and other daemon jobs), you can find information and messages in the i5/OS Job log.
To view an i5/OS current job activity log messages, use the following i5 commands:
WRKACTJOB SBS(ZEND) - Work with Active Jobs.
WRKSBSJOB SBS(ZEND) – Work Subsystem Jobs.
Specify option 5 (Work with Jobs) in front of the job.
On the “Work with Job display”, specify option 10 (Display Job Log) on the command line.
Note:
The Work with Jobs display has other options that can be useful when troubleshooting.