Rob McNelly

Rob McNelly




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Recent Posts

  • CoD Remains an Under-Utilized Option
    05/23/2017
  • How to Seize Information About Your SEAs
    05/16/2017
  • About Processor Modes
    05/09/2017
  • There's Still Something About the Good Old Days of Tech
    05/02/2017
  • Running YUM on AIX
    04/25/2017
  • 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 |

    The Costs of Technical Debt

    As often as I see it, it still surprises me when I encounter a company that depends on some application, but chooses to run it on unsupported hardware without maintenance agreements and/or vendor support. If anything goes sideways, who knows how they will stay in business.

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    Posted: December 08, 2015 |

    Moving an AIX System

    If you're tasked with migrating, duplicating or cloning your system from old to new hardware, how do you go about it?

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    Posted: December 01, 2015 |

    Getting Started with Spectrum Scale

    This post is about the recently published IBM Redbook that covers the IBM Spectrum Scale (formerly GPFS).

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    Posted: November 24, 2015 |

    Replacing Disks with replacepv

    IBM developerWorks recently posted this piece about replacing a boot disk in PowerVC. The developerWorks article mentions the replacepv command. I haven't messed around with replacepv, but once I read about its capabilities, I was impressed.

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    Posted: November 17, 2015 |

    A Different View of Virtualization

    This article examines the issues VMware and x86 customers face as they try to virtualize their environments.


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    Posted: November 10, 2015 |

    A List of System Scanning Tools

    What kinds of tools do you use to document and check your systems? I've written about prtconf, a built-in tool, and hmcscanner, but many other solutions are available.

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    Posted: November 03, 2015 |

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