Question
What is the significance of ADDRSPC parameter in EXEC statement?
Answers
- Storage for individual step is requested by the REGION parameter.
- Being paged step is prevented by the ADDRSPC.
- For being paged, the default option is ADDRSPC=VIRT is used.
- Once ADDRSPC is set to REAL(ADDRSPC=REAL), the step would be locked into real storage, when executed.
- REAL is a good option when time dependent programs are used.
- REAL option allows modification of channel programs dynamically during the I/O operations.
- Its effect is adverse on the performance of the system.   Your Comment




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