• The Cacophony Of Many Different Server Markets

  September 13, 2021 Timothy Prickett Morgan

  Considering how skittery the global economy is, how wonky the world’s supply chains are, and how capricious spending by the big public clouds and the hyperscalers can be (and how much the top eight server buyers in the world make up of the overall market), the fact that the server market only had a 2.5 percent decline in the second quarter is not a surprise.

  It’s just the normal noise in the data, and perhaps, if IDC is right, a slight shift away from using two-socket servers with a modest number of cores to single-socket servers with a larger number …

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• Guru: Understanding Database Performance Using The Performance Data Investigator, Part 2

  June 28, 2021 Dawn May

  This is the second in a two-part series on how you can use the Performance Data Investigator (PDI) to investigate performance of Db2 for i. While the SQL Performance Center in Access Client Solutions is more commonly known than PDI, using both tools is a good way to analyze database performance.

  In Part 1, I reviewed the Database content package, focusing on the charts for I/O reads and writes, SQL CPU utilization, and database locks. In this tech tip, I continue by reviewing the charts related to SQL Cursor and Native DB Opens as well as the SQL Performance …

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• Guru: Understanding Database Performance Using The Performance Data Investigator, Part 1

  June 21, 2021 Dawn May

  This is a two-part series on how to use the Performance Data Investigator (PDI) for investigating performance of Db2 for i. While the SQL Performance Center in Access Client Solutions is the tool of choice for Db2 performance analysis, there is valuable information that you can get from using PDI. PDI is often a useful starting point to help guide you in the correct direction when trying to identify performance issues. In my experience, PDI is under-utilized for Db2 investigation. For those not familiar with PDI, you may want to read the article, Getting Started with the Performance Data Investigator …

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• IBM Versus GlobalFoundries: A Lawsuit Instead Of The Power Chips Planned

  June 14, 2021 Timothy Prickett Morgan

  Last week, IBM took its former foundry partner, GlobalFoundries, to court in a lawsuit that alleges, in essence, that the company promised to deliver Power9 processors based on 14 nanometer technologies and Power10 processors based on 10 nanometer technologies and had some issues with the former and never delivered on the latter.

  Not only that, IBM’s lawsuit says that it never released GlobalFoundries from its from its promise to deliver a 10 nanometer chip, and when the company promised to shift to 7 nanometer technologies, IBM in good faith worked on developing Power10 chips for these processes and spent at …

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• Watson-Inspired Pattern Matching Drives IBM i Performance Breakthrough

  June 9, 2021 Alex Woodie

  What do human diseases and IBM i performance problems have in common? For starters, they both can generate quite a bit of data. In the case of the humans, it was enough for IBM to train its AI technology, Watson, to find patterns buried in the data and come up with diagnoses. Now the Danish software company iPerformance is using a variation on that approach with GiAPA, its Global i Application Performance Analyzer.

  When iPerformance founder Kaare Plesner saw a demo of IBM Watson developing medical diagnoses, he figured a similar approach could work for sorting through the reams of …

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• Doing The Texas Two Step From Power9 To Power10

  March 1, 2021 Timothy Prickett Morgan

  You won’t find an official IBM customer announcement letter on this deal, but we caught wind of it back in late January and we have confirmed with Big Blue that it is indeed offering customers a two-step upgrade track from Power8 and earlier iron to Power10 iron with a middle step on a Power9 machine until the Power10 machines are available starting later this year and into early next year.

  As we reported back on February 1, IBM has indeed been working on something called the “Two-Step Upgrade Program” for customers, which had a name change shift to “IBM Power …

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• Breathing New Life Into Your POWER7 And POWER7+ Systems

  November 30, 2020 Timothy Prickett Morgan

  This is a hard lesson for people to learn, but savvy IT organizations certainly do learn it – some decades ago, some only now. And that lesson is that not every application slowdown and performance bottleneck in a system is directly related to the clock speed or throughput of the central processor. While the processors are indeed central, a system is comprised of main memory, storage, and network I/O, and tuning up a machine as many times as not means bolstering these other components to help the CPU better do the job that is latent in its particular feeds and …

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• Big Blue Revives IBM i 7.1 With Power9 Support

  November 16, 2020 Timothy Prickett Morgan

  We don’t get surprises very often in the Power Systems market, and even fewer in the IBM i sub-market. But last week, we did get a surprise – and it was a pleasant one – as Big Blue decided that it was going to allow for IBM i 7.1, which has long since been removed from marketing and which was just recently given extended extended support through April 2023, to run on selected models of the Power Systems line using Power9 processors.

  That IBM would allow for this is remarkable, and it shows the economic and technical difficulties that many …

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• Tweaks To Power System Iron Complement TR Updates

  October 12, 2020 Timothy Prickett Morgan

  Back in July, IBM upgraded the peripheral I/O on several of its Power9-based servers with more PCI-Express 4.0 bandwidth capacity, and now IBM is offering the increased bandwidth on several machines tuned up for running SAP HANA in addition to making a number of other hardware enhancements and withdrawals.

  In announcement letter 120-054 you will get the feeds and speeds of the updated Power H922, a two-socket, 2U server, and in announcement letter 120-055 you will get the feeds and speeds of the updated Power H924, a two-socket, 4U system. As far as I can tell, the machines are essentially …

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• Guru: Qualified Files – Underused and Unappreciated

  September 14, 2020 Ted Holt

  When IBM adds a new feature to the RPG compiler, they do so for a reason. That’s why I try to learn new techniques. I hope they’ll improve the quality of the source code I write. One relatively new feature that I do not see widely used is the qualified file. In the following paragraphs, I’d like to tell you why I like qualified files and how to use them.

  To understand the need for qualified files, it may be good to begin with a brief lesson on the history of the RPG language. When RPG was originally developed, the …

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