Rob McNelly

Rob McNelly

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Recent Posts

  • POWER9: What's Already Out There Says Plenty
  • Some Familiar and Not So Familiar Uses of ifconfig
  • Tech Changes, but Teaching Doesn't
  • My Workout Day at the Data Center
  • Is Anyone Interested in a Any a Real-Time AIX Forum Using Slack?
  • 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 |

    Thoughts on SAP HANA's Availability on Power Systems

    I assume you've heard by now that SAP HANA is available on IBM Power Systems.

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    Posted: January 26, 2016 |

    Another HMC Goody: myHMC Mobile

    After trying out the HMC virtual appliance (vHMC), I wanted to examine the myHMC mobile application. The app, which came out last summer, is designed to allow you to manage HMC devices from your phone.

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    Posted: January 19, 2016 |

    Testing Out the New vHMC

    Have you ever wished you could run HMC code on your laptop? Sure, there are unsupported work-arounds, but the new HMC virtual appliance (vHMC) makes this task much simpler to accomplish, and it's supported by IBM. Read all about it in section 3.2 of this Redbook.

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    Posted: January 12, 2016 |

    Simon Scripts

    For years I've been asking you to send me scripts. Sharing your scripting abilities benefits us all. We can use them as is, or as a starting point to create scripts that could help others.

    Sometime I find scripts; regardless of their origin, I share them when I get permission from their authors. It's a win-win.

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    Posted: January 05, 2016 |

    The Important Work of Certification Test Writing

    I've once again been working with teams that are updating various certification tests. I enjoy the interaction with tech pros from around the world as we devise test questions and answers.

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    Posted: December 22, 2015 |

    Calculating Hypervisor Memory Overhead

    A customer recently contacted IBM Support, wondering how much memory the hypervisor could be expected to consume in their real world environment. Even given how inexpensive memory has become and how convenient it is to add and modify partitions as needed, customers can benefit by planning for their expected workloads as well as their hypervisor and VIO server memory overhead.

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    Posted: December 15, 2015 |

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