General virtual storage allocation considerations

Virtual storage allocated in each address space is divided between the system's requirements and the user's requirements. The base system control programs require space from each of the basic areas.

Storage for SQA, CSA, LSQA, and SWA is assigned for either the system or a specific user. Generally, space is assigned to the system in SQA and CSA and, for users, in LSQA or SWA.