Sign up today! CICS Virtual User Group – Tomorrow, July 29, 2025 Join us on Tuesday, July 29, for the next installment of the CICS User Group series. Colin Pearce, z/OS and CICS Systems Programmer at Bank of America Merrill Lynch, will present. Register for the...
IT environments are increasingly complex to manage, and overburdened administrators are tasked with refining them, keeping them secure, and preventing downtime.Mainframes are critical to that infrastructure, as they process and store billions of transactions worth of...
This article updates a 2022 piece in Cheryl Watson’s Tuning Letter, “LE Non-Executable HEAPS and CICS User Experiences” by Mario Bezzi. Current Tuning Letter subscribers can read the original article online. Think your mainframe is immune to modern cyber threats?...
High-quality indexes are critical for fast data access and returns. IBM Db2 for z/OS relies on an advanced data structure called the Optimized Balanced Plus Tree to power high-speed indexing. This structure, an evolution of the classic B+ Tree, helps Db2 deliver...
“Managing heat generated by data centers will become progressively more challenging – and, at the same time, necessary.” Chris Frye, Director of Chiller Sales, LG Electronics U.S.A. Inc. According to McKinley, global demand for data center capacity could rise between...
Enterprise Performance Strategies, Inc. (EPS) has a long and deep history with all things mainframe performance and capacity planning. EPS experts have worked extensively in z/OS design, development, and measurement architecture, as well as having worked with hundreds...
The backbone of global business operations runs through mainframes—which handle a staggering 30 billion transactions daily, hold 80% of the world’s business data, and process 90% of credit card transactions. Mainframes are not relics of the past but are integral...
Organizations are drawn to the promise of AIOps to leverage AI-driven Intelligence and automation to make quick and accurate decisions to maintain resiliency. AIOps uses artificial intelligence to simplify IT operations management and accelerate and automate problem...
IT organizations are always chasing better performance. This involves monitoring, tuning, and improving all aspects of the IT infrastructure, encompassing servers, networks, applications, desktops, and databases. But let’s focus on the database, shall we? Five factors...
Last week we ended with Db2 Performance of zHyperLink Read. Now let’s look at the CPU cost of zHyperLink read. As explained last week, I/O operation is now synchronous to CPU with zHyperLink and SQL processing spins while waiting for the I/O to complete. At the same...
