Space announcementThis space provides the same content as before, but the organization of the home page has changed. The content is now organized based on logical branches instead of legacy book titles. We hope that the new structure will help you quickly find the content that you need.
REGION parameter
Include the REGION parameter on either your JOB statement or your EXEC statement to specify the region size (the amount of virtual storage used by the utility).
For the best performance, we recommend that you specify REGION=0M. Doing so enables the amount of virtual storage necessary to run the job to automatically be made available when the Online Consistent Copy job runs. If your data center does not permit you to specify REGION=0M, REGION=4M will usually ensure adequate storage.