Jim Schesvold
Contributor
Jim Schesvold can be reached at jschesvold@mainframehelp.com.
Project Planning for a Network
June 1, 2018
Just as in other aspects of an IT department, an information processing network’s complexity, security, function, performance and pervasiveness have evolved into a mushrooming flow of proliferating data types, protocols, disciplines, challenges and pitfalls that require constant attention and enhancement. It’s a moving target in a constant state of flux, exponentially different from the networks […]
ArticlesWhy It’s Important to Create a Library of Network Documentation
April 1, 2018
I’ve always been a strong advocate of documentation, because in my very first programming project, I got a profound lesson on why no project or assignment was complete until descriptive written information accompanied the work product. I was a graduate assistant in a business Master’s Degree program, and the associate dean offered me a summer […]
ArticlesDistributed Network Testing: The Key to Productive Network Management Infrastructure
April 1, 2018
Network testing was a pretty straightforward process when IBM assigned me to network implementation and management in my job as a Systems Engineer. There weren’t many network components: Point-to-point or multipoint modems, a channel connection between mainframe and 3705 communication controllers with associated network interfaces (which was admittedly complex), the analog telecommunications link, a 3270 […]
ArticlesEstablishing a Network Management Infrastructure
March 1, 2018
When I first got involved in network design and implementation, network management infrastructure was unheard of—an organizational component awaiting definition. Getting a network functional was top priority, and while a manager oversaw us, she had a minimal grasp of the technology. Constructing an online, interactive, computer-based network—one that provides access to business applications the same […]
ArticlesEstablishing an Infrastructure for Tuning a Distributed Network
February 1, 2018
Just as with system or application tuning on a computer, network tuning is a discipline involving hardware and software, but components and methodology differ significantly. There are also commonalities, like the need to collect performance data from various sources, the need to understand interdependence and interactions involved in changing software, hardware or both. Product knowledge […]
ArticlesThings to Consider When Doing a Network Redesign
January 2, 2018
When I started my career, my assignment was singular: Support CICS/VS on the mainframe. My clients were few, because online processing was relatively new, but two of the clients had grown into major players in online and were significantly expanding outside their home offices. In fact, these clients had offices spread across a substantial […]
ArticlesOptimize Memory to Enhance Speed of CICS Functions
December 1, 2017
This article focuses on CICS performance across all platforms. On the mainframe CICS is known as CICS Transaction Server (TS), but on other platforms it’s called TXSeries, with CICS Transaction Gateway providing standardized CICS interfaces and secure access. All products are developed and supported by CICS development, and interact with each other via facilities like […]
ArticlesStreamline Processes and Reduce Processor Overhead in CICS
November 1, 2017
This article focuses on CICS performance across all platforms. On the mainframe CICS is known as CICS Transaction Server, but on other platforms it’s called TXSeries, with CICS Transaction Gateway providing standardized CICS interfaces and secure access. All products are developed and supported by CICS development, and interact with each other via facilities like CICS […]
ArticlesMonitoring and Administration Needed for CICS Effectiveness
September 1, 2017
This article focuses on CICS performance across all platforms. On the mainframe CICS is known as CICS Transaction Server (TS), but on other platforms the product is named TXSeries, and for special functions, CICS Transaction Gateway. All products are developed and supported by CICS development, and are designed to interact with each other via facilities […]
ArticlesCICS Tools Identify Performance Issues
August 1, 2017
This article focuses on CICS performance. On the mainframe CICS is known as CICS Transaction Server (TS), but on other platforms the product is named TXSeries, and for special functions, CICS Transaction Gateway. All products are developed and supported by CICS development, and are designed to interact with each other via facilities such as CICS […]