• Wanted: A Real ROI Study For Midrange Platforms

  October 28, 2019 Timothy Prickett Morgan

  There is no shortage of IBM i shops that are sitting on back releases of the operating system and related systems software, or older Power Systems iron, or both. Sometimes, it takes a little convincing to get upper management to listen about how IT operations could be improved and extended if the company would only make some investments in upgrading the hardware and systems software. Sometimes it takes a lot of convincing, particularly when many small and medium businesses are run by their owners and in a certain sense any money that would be allocated for an upgrade is their …

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• Relieving The Anxiety About IBM i Performance

  September 23, 2019 Timothy Prickett Morgan

  Starting a business is an exciting thing, and one of the most fundamental activities any of us can engage in as members of a capitalist economy. My adage has always been: Those who can work, must; those who can employ, must as well. I have faced my share of those moments, starting a business, with excitement and trepidation and hope. And now, our good friend and colleague, Doug Mewmaw, has hung out his shingle, which says Peak System Performance on it.

  Mewmaw, as you well know from reading The Four Hundred, is an expert on performance analysis and …

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• Maxava Hits Multiple Targets With The Same HA Arrow

  September 16, 2019 Timothy Prickett Morgan

  Downtime is never a good thing for any business, except maybe for those who sell high availability clustering and disaster recovery software for a living. And to be honest, these companies explicitly want to keep the downtime and the recovery time to the smallest period as possible. The fear of downtime should be enough to motivate us all to replicate out systems.

  But sometimes, just having two systems in a high availability cluster is not enough. Some companies need belts with their suspenders, and maybe even a bunch of different belts because they really can’t be down. To that end, …

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• Speaking The SQL Lingua Franca On IBM i

  June 3, 2019 Timothy Prickett Morgan

  No matter what the job is, we all start out somewhere that is pretty far from being an expert and we depend on our elders and mentors to help us learn all the tricks and get good at the work.

  So it is with the nearly ubiquitous database query language, Structured Query Language, or SQL for short. It started out in the head of IBMer Ted Codd back in 1969, which was coincidentally when the System/3 minicomputer launched and its successor many generations later, the System/38 in 1978, was the first IBM system and the first system in the world …

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• Retranslation Could Boost Performance

  May 13, 2019 Timothy Prickett Morgan

  There are so many kinds of genius embedded into the IBM midrange line that it is hard to know where to begin when discussing all of these interconnected ideas and layers. But perhaps the simplest way to encapsulate them all is that the System/38 and AS/400 minicomputers and their follow-ons sought to abstract away and mask some of the more complex aspects of a modern system so that programmers could focus on business logic and system administrators could focus at a much higher level, too.

  One of the key differentiators of these IBM midrange platforms, and one of the hallmarks …

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• Deep Dive On IBM i 7.4 And IBM i 7.3 TR6 Hardware Limits

  April 29, 2019 Timothy Prickett Morgan

  As everybody knows by now, IBM has announced both the Technology Refresh 6 for IBM i 7.3 and the shiny new IBM i 7.4 release. We did a brief overview of these operating system releases in last Wednesday’s issue, concurrent with the launch and ahead of their respective May 10 and June 21 general availability dates, to put them into perspective. Now, it is time to get into the nuts and bolts and bits and bytes of what Big Blue has announced.

  Rather than try to do it all in one story or possibly two, we are breaking it …

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• IBM Brings Active-Active Mirroring Into Db2 For i Database

  April 24, 2019 Timothy Prickett Morgan

  As a platform that is approaching 40 years of deployment within enterprises that can’t afford downtime with their mission critical systems – that’s counting the System/38 as well as the AS/400 and its follow-ons as part of the same continuum – it is no surprise at all that IBM midrange systems running RPG and COBOL had some of the most sophisticated – and perhaps the only application-centric – clustering software ever developed.

  Concurrent with the launch of IBM i 7.4 this week, Big Blue is rolling out a new kind of database clustering, which is called Db2 Mirror, that is …

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• Settling In With IBM i For The Long Haul

  February 11, 2019 Timothy Prickett Morgan

  If nothing else, the IBM i platform has exhibited extraordinary longevity. One might even say legendary longevity, if you want to take its history all the way back to the System/3 minicomputer from 1969. This is the real starting point in the AS/400 family tree and this is when Big Blue, for very sound legal and technical and marketing reasons, decided to fork its products to address the unique needs of large enterprises (with the System/360 mainframe and its follow-ons) and small and medium businesses (starting with the System/3 and moving on through the System/34, System/32, System/38, and System/36 in …

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• The IBM i Base Did Indeed Move On Up

  January 21, 2019 Timothy Prickett Morgan

  This time last year, in the wake of the 2018 IBM i Marketplace Survey report put together by HelpSystems and based on survey data gathered in the fall of 2017, we said that the IBM i base was ready to move on up to newer iron. And guess what? Based on the results of the survey done in October 2018 and released in the 2019 IBM i Marketplace Survey unveiled last week, it looks like a pretty healthy portion of the base did in fact get off older iron and move to shiny new Power9 iron. In some cases …

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• Guru: Addressing A Legitimate Question

  December 10, 2018 Ted Holt

  This is the last Monday issue of The Four Hundred for 2018. My, how time flies! I like to do something different at year end. In previous years I have solved Sudoku puzzles, found my way through mazes, solved the peg game, and more. This year I wish to honor a request that has come from various people and to address what they consider to be a legitimate question.

  As I wrote recently, the question I hear occasionally goes something like this: “Why bother with service programs? Why not use dynamic calls?” Rather than insult the …

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