IBMcopy132: Getting the Most Out of OSA and HiperSockets with zOS Communications Server

Project and Program: Communications Server

Tags: Proceedings, SHARE Orlando 2026, 2026

IBM System Z OSA-Express and Network Express is a critical aspect of your z/OS application workloads. OSA and HiperSockets are used for both SNA and IP connectivity. In this session, we will focus on how z/OS Communications Server uses OSA for IPv4/IPv6 external connectivity based on the Queued Direct IO (QDIO) architecture. The speakers will cover the operational aspects of OSA as well as configuration options for optimizing both inbound and outbound network traffic. We will also look at how HiperSockets Converged Interface (HSCI) could be an operational benefit to your environment. The focus will be on the z/OS Communications Server software use of OSA. The speakers will also discuss hardware aspects where such aspects are of importance to understanding how the hardware and software combine and cooperate to deliver optimal function and performance.

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