Rob McNelly

Rob McNelly




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Recent Posts

  • Thoughts on Performance Tuning
    01/17/2017
  • The PowerVM Story Gets Better
    01/10/2017
  • Estimate rperf for your LPAR
    01/03/2017
  • Booting AIX in Debug Mode
    12/20/2016
  • Back Up Your HMC or Get Ready to Rebuild
    12/13/2016
  • Migrating to POWER8 Systems

    You just found out you're getting new hardware. But hold the celebration -- how do you get your existing LPARs to run on it?

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    Posted: April 05, 2016 |

    Another Lifeline for Those on AIX 5.3 Extended Support

    Nobody likes to admit it, but many customers are still running AIX 5.3 on older hardware. There are many reasons for this. Maybe you have a few LPARs running an older OS. Maybe you're reliant on a critical application that's no longer supported. Maybe you've fallen so far behind on patching and upgrading that running an old OS is an acceptable risk. Or perhaps it's simply the stubbornness of an "if it ain't broke, don't fix it" mentality.

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    Posted: March 29, 2016 |

    Finding Minimum AIX Hardware Support Levels

    If you just bought an 8408-E8E -- otherwise known as the E850 -- you may be wondering about its minimum supported AIX versions. Turns out there's an easy way to find this information: Just go to the System to AIX Maps web page.

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    Posted: March 22, 2016 |

    POWER Systems? There’s an app for that.

    It seems like there's an app for everything related to your Power hardware these days. There's myHMC Mobile (which I covered here), along with the IBM Redbooks Mobile App. And now there's the IBM Technical Support Mobile App (available for Android and iPhone).

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    Posted: March 15, 2016 |

    The Fix (Level) is In: Using FLRT and FLRT LITE

    I've mentioned FLRT previously. Hopefully you've taken advantage of the tool. On countless occasions it's helped me determine the latest versions of OSs, firmware and applications, along with end of life, etc.

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    Posted: March 08, 2016 |

    How Does Your Database Rate?

    The website db-engines.com rates "database management systems according to their popularity."
    The list has been around for a few years, and as this InfoWorld article notes, "It isn't forensically precise, nor is it meant to be; it's intended to give a sense of trends over time."

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    Posted: March 01, 2016 |

    Running LPM on Selected Partitions

    A while back a customer got word from Oracle that they would be charged for every core on a system that could be used for Live Partition Mobility, even cores that weren't used by their Oracle database.

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    Posted: February 23, 2016 |

    Proud to be a (Returning) Champion

    Last fall I wrote about the relaunch of the IBM Champions program. Here's how I described it back in 2011.

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    Posted: February 16, 2016 |

    Single-User Mode vs. Maintenance Mode

    Recently I was telling a customer about the differences between booting into single-user mode and booting into maintenance mode. If you're not familiar with these procedures, I recommend either using an existing LPAR or creating a new LPAR and trying them both. But before you do that, check out two valuable IBM support technotes (FAQs) that walk through each method.

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    Posted: February 09, 2016 |

    New Solutions to the Age-Old Problem of Memory Errors

    This article made the rounds on Twitter awhile ago. It's worth your time if you haven't read it:

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    Posted: February 02, 2016 |

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