Use the IXGOFFLD service to initiate an offload of log data to DASD log data sets.
For coupling facility log streams log data is offloaded from the coupling facility structure associated with a log stream to DASD log data sets. Because offloading hardens log data on DASD log data sets, it updates the safe import point for a log stream. You can use IXGOFFLD to initiate an offload on a source log stream to increase the safe import point. This makes more log data available for safe import from the source to the target log stream.
For DASD-only log streams log data is offloaded from local storage buffers to DASD log data sets. Offloading does not update the safe import point, because for DASD-only log streams, when an IXGWRITE service is issued to write data to local storage buffer, the log data is automatically hardened on DASD staging data sets at the same time. For DASD-only log streams, the safe import point is updated after every successful write request.
The number of off-loads initiated via IXGOFFLD are tracked in a field in SMF record 88.
You must be in task mode to issue the IXGOFFLD service or else the request is rejected.