Example of log data that is accessible to DFHJUP

Assume that you have defined a CICS system log with RETPD(10) and AUTODELETE(NO). The active portion of the log stream will consist of the data that CICS has not marked for deletion. The inactive portion of the log stream will consist of the data that CICS has marked for deletion, but which MVS has not yet physically deleted—because it is less than 10 days old.

Figure 1 shows active and inactive data on a log stream with a RETPD value of 10.
Figure 1. Active and inactive data on a log stream. The log stream has been defined with a RETPD value of 10.
The figure shows that data from a log stream can be in three different states: physically deleted, inactive, or active. For this example log stream, the RETPD value is 10. Data from this log stream is physically deleted when it is ten days old, provided that either AUTODELETE is set to YES, or an IXGDELET has been issued against the data. Data from this log stream is inactive if an IXGDELET has been issued against it, but it is not yet ten days old (so not old enough to be physically deleted). Any other data from this log stream is active — it is not yet ten days old, and no IXGDELET has been issued against it.

The report output by DFHJUP advises you whether each block of data was read from the active or inactive area of the log stream—see Figure 1.