Rob McNelly

Rob McNelly

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Recent Posts

  • A Primer on the New Hyperconverged Systems
  • Getting Hands on With AIX on a Nutanix Cluster
  • A Not So Technical Look at Technical Debt
  • More Help for the HMC Transition
  • History Bytes
  • Digging into Last Week's IBM Announcements

    Last week IBM announced new hardware models, along with new features and functionality within AIX and IBM i. I believe IBM is once again showing a strong commitment to the Power brand, and, by providing the capability to update your operating system on the fly, giving customers another reason to choose Power Systems.

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    Posted: October 18, 2016 |

    The Best Documentation is Well-Organized

    It's once again time to nominate IBM Champions.  Seeing that notice reminded me of the IBM Champions event I attended in Austin, Texas, some months back. I'd known a lot of these folks for years, but I was meeting a few of them for the first time. Balazs Babinecz was one of those people I'd never been face to face with.

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    Posted: October 11, 2016 |

    A Performance Analysis Tool for Linux

    I often hear from people who want to know how to conduct in-depth performance analysis on Linux. These folks are new to the platform and wonder why they can't find many of the tools (PerfPMR, for instance) that they take for granted with AIX.

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    Posted: October 04, 2016 |

    Removing a Static Route from the ODM

    I was recently asked how to remove a static route from the AIX Object Data Manager (ODM), so I pointed my customer to this techdoc.

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    Posted: September 27, 2016 |

    More on the HMC and root

    Did you know about the AIX forums that are hosted at It had been awhile since I checked them, but when I did recently, I found an open letter that was written to me a few weeks after I wrote about whether IBM should allow root access to the HMC.

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    Posted: September 20, 2016 |

    POWER9 Media Coverage

    Last month's Hot Chips conference generated quite a bit of press about the soon to be available POWER9 processors.

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    Posted: September 13, 2016 |

    10G Ethernet on POWER Tips

    This great new techdoc from Steve Knudson recently went live. It includes a set of slides that cover Ethernet on POWER, along with a cheat sheet that you may find valuable as you transition to 10G adapters on POWER8 servers.

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    Posted: September 06, 2016 |

    Using LPM from the Command Line

    In February I wrote about disabling live partition mobility on selected partitions, and recently I received a related question from someone looking for an alternative to using the HMC GUI. Specifically, how do you turn LPM on and off from the command line on a per partition basis?

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    Posted: August 30, 2016 |

    Using AIX System Accounts

    I recently was asked about AIX system accounts. You'll find the answers -- why they're there, how you login to them, etc. -- in this IBM Support doc. It's an older document that covers the basics, but the information is still relevant:

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    Posted: August 23, 2016 |

    Linux on Power Resources

    I know more of you are evaluating and using Linux on Power, so I want to highlight some good resources. (Note: A ton of links follow, and I've noticed that some don't seem to work properly with Internet Explorer, so try another browser if you encounter issues.)

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    Posted: August 16, 2016 |

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