This chapter begins with a description of the virtual address space and the virtual memory classes. This is followed by a description of big pages. The various storage media are then presented and this is followed by a discussion of the measures for preventing saturation conditions.
Memory management for BS2000 comprises the following tasks:
Management of system/user virtual address space
Control of reservation, allocation and release requests for pages in
virtual address space
main memory
paging memory
as well as creation and updating of tables for managing these storage areas
Paging control
Time monitoring of main memory page allocation
Detection of special situations and initiation of appropriate measures for
saturation handling
Error handling
Internal mechanisms and functions in BS2000 provide systems support with a number of interfaces and tools. These are described below.