A program uses the IARV64 PAGEOUT service to tell the system that the data in certain pages will not be used for some time (as measured in seconds) and that the pages are candidates for paging out of real storage. A pageout does not affect pages that are fixed in real storage. On the RANGLIST parameter, the program provides a list of page ranges.
A program uses the IARV64 PAGEIN service to tell the system that it will soon reference the data in certain pages and that the system should page them into real storage if the pages are not already backed by real storage.