z/OS MVS Initialization and Tuning Guide
z/OS MVS Initialization and Tuning Guide
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Master scheduler initialization z/OS MVS Initialization and Tuning Guide SA23-1379-02 |
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Master scheduler initialization routines initialize system services such as the system log and communications task, and start the master scheduler itself. They also cause creation of the system address space for the job entry subsystem (JES2 or JES3), and then start the job entry subsystem. Note: When JES3 is the primary job entry subsystem, a second
JES3 address space (JES3AUX)can be optionally initialized
after master scheduler initialization completes. The JES3AUX address
space is an auxiliary address space that contains JES3 control blocks
and data.
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