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SMF Log Streams

The SMF log streams are an alternate recording mechanism for all system SMF records.

A site can have several SMF log streams defined and active. Each log stream can be assigned a range of SMF record types to record, through the SMFPRMxx PARMLIB member. The log stream structures use LOGR services to maintain buffer data in the LOGR subsystem. The LOGR services offload the data when the buffer full threshold specified in the log stream definition is reached and purges the data according to criteria specified in the log stream definition.