Rob McNelly

Rob McNelly

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Recent Posts

  • Returning to AIX
  • AIX Implementation Best Practices Updated for POWER9
  • What are your resource needs? You'll know when you know
  • New Doesn't Always Mean Improved
  • POWER9 Performance Best Practices
  • New Servers Designed for Smaller Environments

    In my consulting work, I see a number of customers with small machines running critical workloads that don't incorporate virtualization. Because these workloads aren't necessarily memory- or CPU-intensive, these customers see no need to set up multiple LPARs. They just want a stand-alone system.

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    Posted: February 14, 2017 |

    Article Misses the Point on VIOS Use

    This was posted on Jan. 17, but it's worth revisiting.

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    Posted: February 07, 2017 |

    Decoding iCalendar Files

    If you use an electronic calendar, chances are you're dealing with multiple calendaring and email systems between your work and personal accounts. Some folks use Google Calendar, others use Outlook and still others use Lotus Notes for example. Personally, I use multiple email clients, and each one has a calendar. I prefer to keep all of my appointments in one place using one piece of software, and everything has to sync with my phone.

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    Posted: January 31, 2017 |

    Taking on the Upgrade Exception

    During a recent conversation over lunch, my companion made a great observation: No one questions the need to upgrade their computers and other devices anymore -- with one notable exception.

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    Posted: January 24, 2017 |

    Thoughts on Performance Tuning

    I recently discovered this post to the UNIX & Linux Forums. While it's from 2013, "The Most Incomplete Guide to Performance Tuning" has some great -- and still relevant -- ideas.

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    Posted: January 17, 2017 |

    The PowerVM Story Gets Better

    Why do I consider PowerVM to be such a powerful virtualization technology? It has many advantages compared to competing virtualization technologies, including the capabilities it borrows from the mainframe.

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    Posted: January 10, 2017 |

    Estimate rperf for your LPAR

    This post outlines a recent Nigel Griffiths tweet about estimating rperf for your LPAR. Read on to find out more.

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    Posted: January 03, 2017 |

    Booting AIX in Debug Mode

    I recently had an AIX LPAR that wasn't booting. In an effort to gather information, IBM Support had me boot it a few different ways. This document details what we needed to do. I'm copying it here because I want to make sure you're aware of this option.

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    Posted: December 20, 2016 |

    Back Up Your HMC or Get Ready to Rebuild

    A customer had an HMC issue. There were no backups, so the HMC had to reinstalled from scratch. There wasn't any documentation either, meaning that the customer had no idea what the network settings should be.

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    Posted: December 13, 2016 |

    Bare Metal Recovery Options for Linux

    I recently wrote about backups, though I didn't get into the bare metal recovery options for Linux. I wrote about this topic in 2005, and here I am, 11 years later, still wondering where is my integrated bare metal recovery mechanism for Linux? The answer is still going to include Storix, though there's another utility that may also work for you.

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    Posted: December 06, 2016 |

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