Dave Heggen is Storage Performance Consultant on the technical services team in the US. He has over thirty-five years of data processing experience, including 29 years with IBM. Dave specializes in z/OS Disk and Tape with an emphasis on z/OS Storage Management, Data Migration, Installation Planning, and Customer Satisfaction. Dave loves to get in front of customers to provide product training and he likes to write on a variety of topics, including blogs. In his time at IBM Dave co-authored a Redbook and wrote many technical delivery guides and he presented during IBM Storage Technical Universities on topics like Disk Encryption, Secure Data Erasure and Thin Provisioning.
Resources created by Dave Heggen
Application Design Issues Cause Low Throughput to Virtual Tape
IntelliMagic Vision proactively identifies risks in your virtual tape environment and highlights potential issues before they have fully developed.
Dragging the Right Information Out of SMF/RMF/CMF for z/OS Disk Performance Analysis
Accurate data about your environment is an essential element in assessing the health and vitality of your mainframes.
RLS Catalog Justification
Determine the initial benefits of RLS Catalog Conversion, how to find the higher value targets for implementation, as well as the ability to monitor all ENQ/DEQ activity with IntelliMagic Vision.
What’s Using Up All My Tapes? – Using Tape Management Catalog Data
In addition to the SMF and TS7700 BVIR data, IntelliMagic Vision can also process information from a Tape Management Catalog (TMC).
What Good is a zEDC Card?
IntelliMagic Vision for z/OS is a wonderful tool to review zEDC activity and there are likely two reports of great interest, The PCIe Card Utilization, and Compression Ratios.
Daily Dashboards with IntelliMagic Vision for z/OS
See how one of our technical consultants starts his day by looking at the IntelliMagic Vision for z/OS dashboards which represent the end-to-end z/OS infrastructure.
Beneficial Use of GDPS Copy Once Facility (Experimental Evidence)
A Copy Once Facility is not expensive to implement or maintain and can save up to 50% of the bandwidth that would be required if it wasn’t available.
z/OS Petabyte Capacity Enablement
The purpose of this blog is to discuss the strategies of how to position existing and future technologies to allow for this required growth.
nil sub sole novum – Vision 7 Support for IBM APAR OA39993
IntelliMagic Vision provides support for tracking Interrupt Delay Time which is a timely addition to sub-millisecond response time reporting.
Don't Duck Tape Performance
The use of IntelliMagic Vision reporter provides the ability to automate from initial data gathering to report pushing and allows for the accumulation of Configuration Trend reporting.