data set to associate a coupling facility structure with the log stream. If the
staging data set fills up to its defined HIGHOFFLOAD value, the system logger
begins the offload process. Both a DASD-only log stream and a coupling facility
log stream can have data in multiple DASD log data sets. As a log stream fills log
data sets on DASD, the system logger automatically allocates new log data sets
for the log stream.
2.5.5 Coupling Facility log streams
A coupling facility log stream spans two levels of storage: the coupling facility for
interim storage and DASD log data sets for more permanent storage. When the
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