Controlling the state of duplexing of coupling facility structures

摘要

A coupling facility is coupled to one or more other coupling facilities via one or more peer links. The coupling of the facilities enables various functions to be supported, including the duplexing of structures of the coupling facilities. Duplexing is performed on a structure basis, and thus, a coupling facility may include duplexed structures, as well as non-duplexed or simplexed structures.

主权项

1. A computer system for managing duplexing of coupling facility structures, said computer system comprising:
a memory; and a processor in communication with the memory, wherein the computer system is configured to perform a method, said method comprising:
initiating activation of duplexing of a coupling facility structure, wherein an instance of the coupling facility structure is located within one coupling facility and wherein the coupling facility structure is a coupling facility cache structure or a coupling facility list structure;determining whether another coupling facility in which another instance of the coupling facility structure is to reside is connected to the one coupling facility; andactivating duplexing, based on the determining indicating that the other coupling facility is connected to the one coupling facility.