Joseph Gulla

Joseph Gulla




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Recent Posts

  • Recapping Blogs on Skills, Trends and Teachings
    01/15/2018
  • A 2017 Writing Recap: A Productive and Interesting Year
    01/08/2018
  • Managing Emerging Technologies
    12/18/2017
  • A Focus on Cloud Management
    12/11/2017
  • A Comprehensive Approach to Application Management
    12/04/2017
  • Programming on Linux

    This is the first in a series of blog posts on computer languages that are commonly used in Linux environments. I first started to learn and write about Linux because of the support it receives on IBM z Systems computers. IBM z Systems support for Linux and related software, both open source and traditional proprietary, is extensive.

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    Posted: June 01, 2015 |

    Cloud Management

    This post is the last in a series about the management of IT systems. The first three in the series were about systems, network and application management. The focus of this post is cloud management and how it plays a key role in public, private and hybrid cloud services.

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    Posted: May 25, 2015 |

    Two Views of Application Management

    This post is the third in a series about the management of IT systems. The first and second in the series were about systems and network management. The focus of this post is application management and how it has two different expressions in IT.

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    Posted: May 18, 2015 |

    Network Management

    This post is the second in a series about the management of IT systems. The first, Systems Management, was broadly about areas of concentration including fault, configuration, change, performance and capacity management. The focus of this post is networks and the important activities and tools associated with network management.

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    Posted: May 11, 2015 |

    Systems Management

    This post is the first in a series about the management of IT systems, network, applications and emerging technologies like cloud. In this post I will discuss systems management.

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    Posted: May 04, 2015 |

    Logical Partitions

    In this post, I will discuss logical partitions called LPARs and describe how LPARs and VMs are often mixed in enterprise computing configurations to meet the business needs of a company. In my previous post, I wrote about VMs and how they are part of the vocabulary in IT. LPARs are no less pervasive in use but perhaps a bit more behind the scenes on z Systems computers. Let me explain.

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    Posted: April 27, 2015 |

    Virtual Machines

    VMs are now part of the vocabulary of many in IT. VMs are ubiquitous from mainframes to desktops and everywhere in between. What are VMs and where did they come from? That is the subject of this post.

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    Posted: April 13, 2015 |

    Virtual Storage and Access Methods

    Ever wonder why we have so many access methods with names like QSAM, BDAM, VSAM and VTAM? This topic will be explored in this post with a focus on the access methods that were designed to make use of virtual storage.

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    Posted: April 06, 2015 |

    Virtual Storage—A Long-Lasting Invention

    In this post, I will begin an exploration of IT virtualization. Specifically, I am writing about the importance of different aspects of virtualization in today’s computers. Since virtualization is a built-in part of every computer we use, we don’t discuss it that often. Frankly, it is a very important invention that we simply take for granted and perhaps that is how it should be.

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    Posted: March 30, 2015 |

    IT Service—Software and Business Process Services

    In this post, I explore software as a service (SaaS) and business process as a service (BPaaS). In the last post, I discussed IaaS, which provides infrastructure combined with services for use by a community of computer users. I also discussed platform services, which build upon IaaS and supply more support and software in a context like facilitating database processing or enabling software development. Platform services are very useful and in some cases provide the underpinning for SaaS or BPaaS. Let me explain.

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    Posted: March 23, 2015 |

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