If at any time during global resource serialization initialization, connectivity to the global resource serialization coupling facility structure is lost, the system will finish initialization and then either participate in the rebuild or enter a wait state (SFM policy decision).

When loss of connectivity occurs early in global resource serialization initialization, a re-IPL of the system is the appropriate action to take.

Following initialization, if a system loses connectivity to the lock structure, ISGLOCK, global resource serialization initiates a rebuild of the structure.