z/OS and DFSMS Deep Dive Into New Function

Project and Program: MVS, MVS Storage Management

Tags: Proceedings , SHARE Providence 2017 , 2017

This session will provide a deep dive into the new IBM zHyperlink Express function just announced and exploited by DFSMS. IBM zHyperLink Express(R), a new short distance Z I/O adapter introduced on
z14, is designed to offer extremely low latency connectivity to FICON(R) storage systems. zHyperLink can improve application response time, cutting I/O-sensitive workload response time by up to 50% without requiring application changes. z/OS will optimize I/O performance by selectively utilizing zHyperLink Express or FICON paths to the storage system. DB2 V12 for z/OS will use zHyperLinks to reduce the elapsed time that transactions wait for random database read I/O, when the page is resident in the DASD cache.-Terri Menendez-IBM Corporation; Harry Yudenfriend-IBM Corporation

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