Rob McNelly

Rob McNelly




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Recent Posts

  • POWER9: What's Already Out There Says Plenty
    09/19/2017
  • Some Familiar and Not So Familiar Uses of ifconfig
    09/12/2017
  • Tech Changes, but Teaching Doesn't
    09/05/2017
  • My Workout Day at the Data Center
    08/30/2017
  • Is Anyone Interested in a Any a Real-Time AIX Forum Using Slack?
    08/21/2017
  • 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 |

    HMC installios Cleanup

    Awhile back, I was called in to assist an IBM i heritage customer that encountered difficulty installing a VIO server from their HMC.

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    Posted: October 27, 2015 |

    An Underutilized PowerHA Option

    Awhile back, IBM's Chris Gibson offered a PowerHA tip that you might have missed. You can use SEA poll_uplink method (requires VIOS 2.2.3.4). In this case SEA can pass up the link status, no "!REQD" style ping is required any more.

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    Posted: October 20, 2015 |

    The Simplest Script

    I was recently working with someone who had built some new LPARs. As part of the build out he decided his NIM server would make a good general purpose utility server. This NIM server would become a one-stop shop where he planned to stage fixes along with the base OS images he'd use to create his environment.

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    Posted: October 13, 2015 |

    IBM Announcements Including AIX 7.2 and New Linux Servers

    What version of AIX are you running? At conferences and events where presenters ask for attendees to put up their hands I am seeing fewer and fewer shops running AIX 5.3, AIX 5.2 or older versions of AIX. They are migrating to newer hardware and newer versions of PowerVM and the AIX operating system.

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    Posted: October 05, 2015 |

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