Is there any compatibility issue with the IBM USEZOSV1R9RULES(NO) parameter for Optimizer/II and SymDump/Batch?

Products

• Optimizer/II
• SymDump for CICS
• SymDump Batch

Issue/Introduction

Are Optimizer/II and SymDump/Batch compatible with the IBM USEZOSV1R9RULES(NO) parameter?

 

 

Environment

Release: Optimizer/II 8.5; SymDump Batch

Resolution

Optimizer/II and SymDump/Batch are compatible with the IBM USEZOSV1R9RULES(NO) parameter.

As per IBM, setting parameter USEZOSV1R9RULES to NO causes GETMAIN and STORAGE OBTAIN behavior for user-region private area subpools that are both below and above the line to be implemented. Thus DQEs can be merged where possible.

For Optimizer/II and SymDump Batch it is recommended you apply RO20498.

Other than that there are no known problems using this parameter.