• The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
Menu
  • The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
  • IBM Demos 1.5 GHz Four-Way Squadron Server

    April 5, 2004 Timothy Prickett Morgan

    I took a good, hard look at the first Power5-based “Squadron” server that IBM has publicly demonstrated. The machine, which IBM showed off at its Power Everywhere event in New York last week, was a four-way box that was missing its front label panel. While IBM would not say much about the machine, you can learn a lot if you just look carefully.

    The machine that I saw at the show was a four-way box running AIX 5L 5.3, OS/400 V5R3, and a 64-bit Power implementation of Linux, each in its own partition. The machine’s hypervisor, which controls the logical partitions, had allocated three partitions across 1.5 processors and still had 2.5 processors not activated, ready to be dynamically added to support the workloads that were running on the box. (There was a Java runtime error, which the tech skipped over very quickly, but the partitions did increase in size, and you could see the Linux workload sigh in relief on a graph as it got more CPU.) This demonstration, I learned, as Al Zollar, general manager of IBM’s iSeries division, walked up behind me and started asking questions, was the so-called “board of directors” demo machine that the top brass at IBM had seen recently, running OS/400 and Linux. AIX 5L 5.3 was only just added to the mix.

    The Squadron box looked like it was a 4U chassis. It had two processor cards in it, each with a single, dual-core Power5 processor on it with an immense heat sink. It may have had room to add two more processor cards, but the open slots (which had dummy plastic placeholders in them) might have been for other electronic devices. Last year, I had heard that IBM would be able to deliver a two-way 4U form factor that could be used as a rack-mounted server or could be flipped on its side to be used as a tower machine. What those sources must have meant was a two-processor or a four-core server in a 4U box. (This is what happens when you put multiple cores on a single chip. People get confused with their language. I just count the cores, since this is what matters to the software.) When I poked my head in the rack, while the IBMers were looking the other way, I saw that the Power5 processors were clearly labeled as running at 1.5 GHz. This is the low end of the expected clock speed of the chips, which should scale initially to 1.8 GHz or 2 GHz before a crank on the chip making processes, in 2005 or so, allows IBM to reach into the 3 GHz range with the Power5+ chips.

    Please participate in our iSeries programming survey at
    http://www.surveymonkey.com/s.asp?u=74193419903

    IBM did not demonstrate the expected 8U form factor Squadron machine, but it seems likely that this machine will merely be two four-way, two eight-way, or four four-way Squadron servers, like the one that IBM demoed, but linked through a high-speed, NUMA-like SMP interconnect. This is the same kind of interconnection that IBM uses on the 16-way xSeries 440 (32-bit Xeon MP) and xSeries 445 (64-bit Itanium 2) “Summit” servers. If it works like the Summit boxes, each 8U chassis will have from two to eight physical processors (that’s four to 16 cores). I think IBM will link together four four-core Squadrons to make the 16-way box and will use electronics that are very similar to the Summit chipset, which is a variant of the NUMA-Q interconnect that IBM got years ago when it acquired server maker Sequent.

    IBM didn’t say anything about the bigger Squadron boxes, but the picture of the chip clearly shows four dual-core Power5 processors, which will have simultaneous multithreading that makes it look like there are 16 cores on the die to the operating system. There are also four 36 MB L3 caches integrated onto the multi-chip module, the first time IBM is integrating L3 cache on the chip. Each Power5 core has 64 KB of L1 cache, and the two cores on a chip share a 1.9 MB L2 cache. The top-end 64-way Squadron box will house eight of these Power5 MCMs, which almost certainly will debut at 1.8 GHz or higher. IBM can always crank up the speed on the MCM versions of its Power chips easier than it can on the entry single-chip versions.

    When asked about when these Squadron boxes might come to market, all that the IBMers we spoke with would say was “soon,” with a big smile. In the IT business, “soon” generally means within the next quarter or so. In show business, now means soon, and soon means maybe, and maybe means never. It’s a good thing IBM is not in show business.

    Share this:

    • Reddit
    • Facebook
    • LinkedIn
    • Twitter
    • Email

    Tags:

    Sponsored by
    VISUAL LANSA 16 WEBINAR

    Trying to balance stability and agility in your IBM i environment?

    Join this webinar and explore Visual LANSA 16 – our enhanced professional low-code platform designed to help organizations running on IBM i evolve seamlessly for what’s next.

    🎙️VISUAL LANSA 16 WEBINAR

    Break Monolithic IBM i Applications and Unlock New Value

    Explore modernization without rewriting. Decouple monolithic applications and extend their value through integration with modern services, web frameworks, and cloud technologies.

    🗓️ July 10, 2025

    ⏰ 9 AM – 10 AM CDT (4 PM to 5 PM CEST)

    See the webinar schedule in your time zone

    Register to join the webinar now

    What to Expect

    • Get to know Visual LANSA 16, its core features, latest enhancements, and use cases
    • Understand how you can transition to a MACH-aligned architecture to enable faster innovation
    • Discover native REST APIs, WebView2 support, cloud-ready Azure licensing, and more to help transform and scale your IBM i applications

    Read more about V16 here.

    Share this:

    • Reddit
    • Facebook
    • LinkedIn
    • Twitter
    • Email

    OS/400 Alert: Virus Programming for the Novice Trader’s Does High Availability for the iSeries, Too

    Leave a Reply Cancel reply

Content archive

  • The Four Hundred
  • Four Hundred Stuff
  • Four Hundred Guru

Recent Posts

  • Liam Allan Shares What’s Coming Next With Code For IBM i
  • From Stable To Scalable: Visual LANSA 16 Powers IBM i Growth – Launching July 8
  • VS Code Will Be The Heart Of The Modern IBM i Platform
  • The AS/400: A 37-Year-Old Dog That Loves To Learn New Tricks
  • IBM i PTF Guide, Volume 27, Number 25
  • Meet The Next Gen Of IBMers Helping To Build IBM i
  • Looks Like IBM Is Building A Linux-Like PASE For IBM i After All
  • Will Independent IBM i Clouds Survive PowerVS?
  • Now, IBM Is Jacking Up Hardware Maintenance Prices
  • IBM i PTF Guide, Volume 27, Number 24

Subscribe

To get news from IT Jungle sent to your inbox every week, subscribe to our newsletter.

Pages

  • About Us
  • Contact
  • Contributors
  • Four Hundred Monitor
  • IBM i PTF Guide
  • Media Kit
  • Subscribe

Search

Copyright © 2025 IT Jungle