Improving z/OS Application Availability by Managing Planned Outages

z/OS enhancements: XCF and System Logger

This chapter provides information about enhancements in z/OS Cross-System Coupling Facility (XCF) and System Logger since z/OS 1.8 that help you avoid or postpone a planned outage of z/OS or one of the components of z/OS.

This chapter includes the following sections:

•System Status Detection Partitioning Protocol

•CRITICALPAGING function for HyperSwap environments

•Non-disruptive CF dump

•XCF command to get structures to primary CF

•Force disconnection or deletion of a log stream without restarting the Logger ...