Valid on z/OS.
Use the SWAP control option to control the swapping (transfer of programs between main memory and auxiliary storage) of the CA Top Secret address space by the z/OS operating system.
All entry methods are accepted.
This control option has the following format:
SWAP(YES|NO)
Allows z/OS to swap CA Top Secret address space.
(Default) Makes the CA Top Secret address space non‑swappable.
Use this option instead of the z/OS Program Properties table to make the CA Top Secret address space non‑swappable.
The CA Top Secret address space is extremely busy during the implementation phase or whenever a large volume of TSS commands is being processed. To minimize paging, and increase response time during implementation, enter the SWAP(NO) option to make the CA Top Secret address space non‑swappable.
z/OS uses a technique known as Paging to allocate storage space in main memory. Paging enables z/OS to divide main memory into blocks of storage called Page Frames. Programs, like the one stored in the CA Top Secret address space, are divided into blocks of storage called pages. z/OS will only assign page frames to those pages of a program that are active. Inactive pages are stored on DASD until they are required to execute. When a page is required to execute, it is swapped into main memory and the page that has already executed is swapped out into auxiliary storage.
The CA Top Secret address space is active (swapped in):
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