Message isolation
This chapter describes a z/OS V2R2 enhancement to assist with message isolation.
Message isolation is the process by which Cross-system Coupling Facility (XCF) monitoring identifies a member that is not processing messages in a timely manner, and then arranges to have sending systems reject or delay messages that are targeted at that member.
z/OS V2R2 introduced enhancements to help alleviate potential issues with message traffic and help recognize and respond to situations to contain and manage the effect of stalled systems. ...