z/OS Version 2 Release 1 Technical Updates

Scheduler and Device Allocation

This chapter describes the enhancements, functions, and features that were introduced for the Job Scheduler and Device Allocation features with z/OS Version 2 Release 1 (2.1):

•29.1, “Dynamic SYSDSN ENQ downgrade” on page 380

•29.2, “Parallel batch recall” on page 382

•29.3, “PARMDD keyword to pass a parameter of up to 32,000 characters” on page 384

29.1 Dynamic SYSDSN ENQ downgrade

IBM MVS Device Allocation feature has the responsibility of ensuring the integrity of data sets and devices. For data sets, it does ...