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Rees - AS400 Specialist - UK

Lee Rees



I have worked with the AS400 platform since December 1988.
I have worked in include Retail, Utilities, Manufacturing, Banking, Insurance, Auto, Shipping, Local government and IBM.

The roles that I have undertaken are Computer Operations Management, Technical Services Management, and Technical implementations.

I have implemented LPAR’s, BRMS, System Migrations, Performance Tuning/Capacity Planning, MIMIX, IBM Director, OS400 Upgrades, Disaster Recovery Planning, System Health Check Reviews, System Security, Work Management configuration and general System i implementations.


AS400 Specialist


Planning and configuring LPAR’s on the i5 and Power i systems.
Planning, and performing “ AS400/iSeries/i5/power System migrations.
Disaster Recovery services, including successfully recovering systems at customer locations.
Investigating system performance and tuning the systems.
Capacity planning,
Reviewing system security, and auditing reports to ensure compliance with published standards.
Planning, implementing and configuring BRMS, including documentation.
Planning and configuring communication descriptions for APPC, APPN and TCP.
Planning, and implementing MIMIX HA at customer sites.
Configuring hardware including Disk and Automated Tape Libraries such as the TS3500
Pre Sales support and project plans.
Skills transfer
ICBS and Aldon ACMS change management

Work History

Senior Technical Specialist

Royal Bank of Scotland

March 2011 - December 2011

I performed audit checks, general support, and problem root cause analysis, LPAR configuration and a Backup and BRMS review of 38 systems. I worked as part of a team providing 3rd level support for over 100 LPAR’s (systems). Training new technicians on OS/400 (IBM i), Work Management, IFS file structures, MIMIX and BRMS. Raising changes and implementing the changes as required.

Technical Specialist

Tesco Bank

August 2010 - March 2011

I created the Pre Production and Training environments for General Insurance (including LPAR planning). Performing security, communication configuration, performance/capacity planning, work management, hardware configuration, migration and system administration duties on a 9117 MMA (570) power 6+ systems running IBM i 6.1, across 23 partitions including providing user support .
I installed IBM Licensed products, PTF packages including creating image catalogues, and I implemented ‘BRMS’,
I configured HTTP and Websphere Application server instances using the HTTP Admin console.

Technical Support

British Car Auctions Europe

May 2010 - September 2010

I reviewed the iSeries hardware estate, and recommended changes to optimise the best use of current resources. I also reviewed the current iSeries backups, documenting the current set up and recommending changes as required. I completed migration project work. Providing ‘3rd level support’ across multiple as400 and iSeries systems, including system administration supporting multiple sites.

Environment Build Analyst

Tesco Personal Finance

January 2010 - May 2010

Creating and supporting ICBS/Signature 10.1 environments, including the Data Warehouse environment. Performing all aspects of IBM i administration. I promoted, and distributed ICBS software releases using the Aldon ACMS change management software.

Technical Specialist

Fortis Bank Global Clearing N.V. London Branch

July 2009 - December 2009

I planned and implemented a MIMIX V6 upgrade; additionally I performed a MIMIX role swap test, and resynchronized Data groups after a parallel run test.
Planned and coordinated hardware upgrades for the Power 5+ and Power 6 Model 570 systems. I reconfigured the IP addresses, and resource names on the systems as part of hardware relocation project, including reconfiguring the HMC
Analyzed current backup processes and produced a BRMS Solution document, and implemented BRMS across 4 systems, including networking BRMS and creating a Virtual tape solution for a Development/Test System incorporating the use of FTP. I configured
SNA, and installed ‘PTF’ packages. I promoted software changes, via the change control application Turnover.

Technical specialist

Admiral Insurance

September 2008 - July 2009

I completed a system security audit, and compliance review, including producing a comprehensive report which detailed issues, and provided recommendations. I also implemented the recommendations. I performed technical planning duties such as operating system upgrade planning, and migration planning and installed Web query. The systems included two Power 6 i595’s. I deployed the Web Query licensed product and tested the product, identifying issues and applying the respective fixes.

Technical Support

Nationwide Building Society

February 2008 - September 2008

Providing technical support for the i5 systems, MIMIX and BRMS, all work undertaken was approved through Change control governance.

Technical Support

Welcome Finance

April 2007 - January 2008

I promoted, and distributed ICBS software releases using the Aldon ACMS change management software; adhering to strict controls.
I worked as part of a large infrastructure project, the work involved LPAR configuration, security, work management, performance analysis, service management, MIMIX, and support.
My duties also involved skills transfer to a trainee i5 Administrator
I recommended the i5 model 570 backup solutions should be changed from the Tivoli Storage Management server to an independent Tape Library using the full features of BRMS, I specified the hardware prerequisites, including the planning and physical installation of the Tape library.
I installed the Tivoli Workload Scheduling Agent, WebSphere MQ for i5 product, PTF’s and an HMC software upgrade. I customized user desktops to automate file downloads

Technical Specialist

IBM (Ireland) Limited

July 2005 - April 2007

I was the iSeries Technical Lead on a major outsourcing transformation project for a large insurance company in Dublin, which was successfully completed, using strict ITIL and SOX controls.
Project work included planning the iSeries attachment to an IBM DS8100, and the load source recovery process for DR. I have completed operating system upgrades, and system migrations. I planned and implemented the migration from an EMC SAN to an IBM SAN. I completed an operational procedure review for IBM Managed Services, and produced a technical report detailing the steps required to automate many of the operations team duties. I have also implemented BRMS. I also planned and configured LPAR’s, my duties included performance analysis and capacity planning using products such as the Performance Tools, Disk Magic, LPAR validation tool, Workload Estimator, BMC Patrol Predict and iDoctor job Watcher.

Qualifications & Certifications

NCC DP Threshold

South Gwent College of Further Education

Pontllanfraith Grammar Technical School

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