Using the Sysplex Coupling Facility › The SYSPLEX XES Function

The SYSPLEX XES Function

CA Top Secret takes advantage of the coupling facility functions:

XES Data Sharing

CA Top Secret uses this feature to provide the ability to share security file records for all CA Top Secret systems throughout the sysplex.The XES data sharing feature lets you define structures in the sysplex that multiple systems can use. These structures contain data (a security file for CA Top Secret) to be shared among the systems in the sysplex. Once the data has been placed in a structure it is valid to be read, updated, or deleted by any system connected to that structure. It is the responsibility of the systems programmer to define the structure‑name to the coupling facility. This structure‑name is then defined to CA Top Secret as the repository of the shared security file

XCF

CA Top Secret uses this feature as a message router that allows the communication of CA Top Secret security information between systems in the sysplex environment. It allows the propagation of commands issued on one system to all the other connected systems. XCF can be active when XES is not..

Note: A second structure can be defined for recovery purposes. This alternate structure is used in case the primary structure has faltered for any reason. This alternate structure is not mandatory, but can be used if desired and is also defined to CA Top Secret.