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Areas of Expertise
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| * | Windows Active Directory/Domain Architecture |
| * | Windows Systems Administration and Management |
| * | Strong Authentication Systems (Smart Cards) |
| * | Public Key Infrastructure / Certificates |
| * | Password Management Facility (jpasswd) |
| * | CUE Web Server design, administration |
| * | CUE MySQL (database) server design and administration |
| * | Heterogeneous Systems Integration |
Miscellaneous
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| Home | Gloucester County |
| Family | Met my wife, Sandy here at JLab |
| | 3 Daughters/1 Son |
| First Computer | Heathkit H8 |
|
Introduction
I've been at the lab since November of 1987. Initially, I came on board as a
contract fabrication technician through Abacus Technical services. I was hired
as a full time electronics technologist in March of 1988. I worked originally
for physicists developing beam diagnostic systems for the accelerator. I
gradually became increasingly involved in developing the control software for
these systems. This gradually grew into development of virtually all of the controls
logic (in the original TACL control system) for all injector and beamline controls
(except RF and Cryo) for the machine through the Front End Test. By that time, I
had migrated to the controls software group where I stayed for several years.
This position evolved into the systems administrator and manager for all Controls
Software systems and networks. After several years of systems and network administration,
I moved to the site Computer Center (in the Physics division) to allow me the opportunity
to work with a greater variety of computer hardware and software systems. Here in the
Computer Center I have developed considerable additional expertise in Unix systems
administration, web server configuration and administration, enterprise application
development, and advanced Windows Systems administration and Domain architecture.
Current Projects
- JLab Windows Domain Segmentation
- Public Key Infrastructure (PKI) Design and Deployment
- Apache web server farm Modernization
- Streaming Media Services
- Strong Authentication (Smart Card) System Design
Old Projects
- Early BPM detectors, front-end electronics and DA/Controls
- Developed automated test stand HW and SW for beam diagnostic devices
- Developed controls hardware and software for beam viewers, harps, capture
section temperature control, injector high voltage controls, early (circa 1989)
Injector magnet controls, basically all original control logic for the
early injector through the Front End Test for everything except RF
and Cryogenic controls.
- Developed and managed early network to support evolving accelerator with TACL software
- ~1993 -- Investigated the techniques and developed the methods necessary to
implement subnet-based routing (static, initially) at the lab. Previously,
the entire lab was networked (like many facilities of the time) via a single, 10Mbps
backbone, with bridged segments for buildings. A bridged segment was further
fanned out via repeaters to nodes within a building. Working to coordinate
this with the computer center, developed a standard "subnet mask" for the site,
which is still in use.
- ~1994 -- As the accelerator control system was changed to EPICS, I updated the
network to evolve alongside the control system. Introduced "layer 3" network switching to allow
creation and management of a large number of subnets to support accelerator
controls several years before layer 3 switching was readily available.
This specifically allowed the network to support the evolution of the
accelerator and its control system at much reduced network costs.
- I developed the "fiefdom" concept within Accelerator systems to provide
management and operational autonomy for groups of systems.
- I developed and implemented network firewalling to provide isolation between the
production "controls" network, and the bulk of the remainder of the site.
- I developed a redundant network to support accelerator operations and various
satellite facilities (CHL, CTF, etc.).
- I served oncall 24x365 for several years with only small breaks for a couple of
vacations out of state.
- Developed numerous tools and utilities for diagnostic use throughout the control system.
- Laid the groundwork for development of strong system config standards with the
accelerator controls group for desktop as well as development and controls systems.
- Developed system for automated construction of HP-UX workstations.
- Worked on high-availability clustering approaches to provide highly
reliable servers so tupport accelerator ops. This effort was eventually
abandoned in favor of other lower cost alternatives.
- Sitewide X-Terminal Configuration Design / Management
Last revised: July 9, 2003.