Implementing Activity Logs › Activity Logs

Activity Logs

The activity logging facility records all the activity in your region. You can use the activity logs to help determine the cause of problems.

Two separate activity log formats exist:

• Online
• Hardcopy

Log records are written to both formats.

By default, activity logs contain the following information:

• All commands entered
• All responses to commands entered
• Any unsolicited messages received from VTAM or the operating system, provided the related interfaces are available
• All messages explicitly written to the log by NCL procedures

The following illustration shows the path that the log record takes in the system.

The online activity log is supplied by the distributed procedure $LOPROC. The $LOPROC procedure writes log data to VSAM files (three by default). The VSAM files are accessed by a second procedure, $LOBROW, which allows online browsing of the log.

Note: $LOPROC and $LOBROW are the default procedure names. You can change these names by using the LOGFILES parameter group in Customizer (/PARMS).