Optimized Save Procedure Using Physical Disk Addresses
Original Publication Date: 1983-Oct-01
Included in the Prior Art Database: 2005-Feb-07
The IBM System/38 has a virtual memory in the form of a single level store where the main storage and disk enclosure storage are treated as a single-level storage space. The System/38 Control Program Facility (CPF) program provides utilities to save and restore user libraries, objects, and basic system information required by CPF for system operation. To save all of the data on the disk enclosures, the user must perform many separate save operations. These CPF utilities run concurrently with normal system operations and compete for system resources. A major disadvantage of the CPF utilities is that access paths are not saved. An access path provides a logical organization to the data base file.