Logstream: Summary resource statistics

These statistics fields contain the logstream summary resource data. Summary statistics are not available online.

Table 1. Logstream: Summary resource statistics
DFHSTUP name Description
Log Stream Name The logstream name.
System Log Indicates if the logstream forms part of the System Log.
Structure Name The coupling facility (CF) structure name for the logstream. The structure name is only applicable to coupling facility type logstreams.
Max Block Length The maximum block size allowed by z/OS® System Logger for the logstream.
DASD Only Indicates the type of logstream. If set to YES, the logstream is of type DASDONLY. If set to NO, the logstream is of type coupling facility (CF).
Retention Period The logstream retention period (in days) that the data must be kept before it can be physically deleted by z/OS System Logger.
Auto Delete The log data auto delete indicator. If set to YES, z/OS System Logger automatically deletes the data as it matures beyond the retention period, irrespective of any logstream delete calls. If set to NO, the data is only deleted when a logstream delete call is issued and the data has matured beyond the retention period.
Log Delete Requests The total number of DELETEs of blocks of data from the logstream. For non-system logs, the report shows N/A here, as CICS® does not issue Log Delete requests against non-system logs.
Log Query Requests The total number of queries that CICS made to check the status of the logstream.