IXGDELET: Deleting log blocks from a log stream

Using the IXGDELET service, you can mark some or all of the log blocks in the log stream for deletion. For a coupling facility log stream, the group of blocks you specify for deletion can reside on both the coupling facility and DASD log data sets. For a DASD-only log stream, the group of blocks you specify for deletion can reside on both the local storage buffers and DASD log data sets. The way system logger processes log data that is marked for deletion depends on the level of the current primary LOGR couple data set for the sysplex and whether a retention period and automatic deletion have been specified for a log stream in the LOGR couple data set. See Deleting Log Data and Log Data Sets in z/OS MVS Setting Up a Sysplex for more information.