gtpd1m2v | Database Reference |
Data sharing in a processor configuration refers to the ability
of concurrent subsystems or applications to directly access and change the
same data while maintaining data integrity and consistency throughout the
processor configuration.
Throughout this chapter you will find the following terms used:
- Term
- Definition
- Data
- Any type of information; not only data contained in a
database.
- Application
- Any subsystem, system product, or authorized application running on a TPF
system in a multisystem environment or processor configuration.
Typically, multiple instances of the application, distributed across the
processor configuration, work together to perform a set of functions.
For example, a database product could be installed on several systems in the
processor configuration. On each system, an instance of the application
accesses and manages the data that it shares with the other instances of the
application.
Figure 57 shows a diagram of a CF with connected TPF systems.
Figure 57. Multiple Systems Sharing Data through a CF