System z

Connect. Learn. Try. Share.

Welcome to the System z community, where you can connect, learn, and share with the System z experts.

Join the System z group and connect with other members who have an interest in System z. You can also collaborate with the experts by accessing blogs, forums, and wikis listed below.

Visit the IBM System z Service Management solutions:

Visit the IBM System z (Mainframe) Operating Systems:

      IBM z/VSE
      IBM z/TPF


If you are interested in seeing a live demo of one of the System z Service Management solutions, please contact us for details.


For our z/VSE release in development we are looking for z/VSE users that want to run some tests with their workload. Please contact us for details. The next beta test period may start in September 2014.

Meet the Experts

  • Alois Eckl

    Alois Eckl is a Software Engineer for Tivoli System Automation for z/OS (SA z/OS). His primary role is Level3 teamlead for SA z/OS. He has been involved in SA z/OS and its predecessor AOC for more than 15 years in a variety of roles in both, Australia and Germany. He also is a Lab Advocate for some SA z/OS clients.

  • Giuseppe's photo

    Giuseppe Longobardi is a senior member of the TWS of z/OS L3 Customer Support Team since 2009. He joined IBM in 1990 working in L3 Support, Development and Design teams, for different z/OS products: NPM (participating in the mission transfer from Raleigh Lab to Rome, becoming the Technical lead), NVAS, SLR and TDS for z/OS (being the Technical lead and Chief Designer). Interacion designer and Software Quality assurer for TDS and TWS for z/OS. In 2007, he joined the TWS for z/OS Development team (participating in design changes and development activities) and is now part of the L3 Customer Support team. He is a senior member of the Rome Lab Patent board (on board since 1999) and IBM Master Inventor, appointed for the 2nd consecutive time in October 2010.

  • Hans-Ulrich Geißler

    Hans-Ulrich Geißler is the test team lead for Tivoli System Automation for z/OS (SA z/OS) for over 10 years now. In his previous role, Hans worked as an SA z/OS developer and as a service team member over several years. Hans is also the SME for the SA z/OS customer classes ("Introduction and Operations" and "Implementation and Administration").

  • Juergen Holtz

    Juergen Holtz is a Senior Software Engineer for Tivoli within IBM's Software Group and as an Architect he is responsible for Tivoli System Automation for z/OS (SA z/OS). He has more than 20 years experience in system software development for System z, in particular in the areas of automated operations, high availability, performance and workload management. Juergen is a member of several IBM architecture teams and also Lab Advocate for a number of clients.

  • Lorin's photo

    Lorin Ullmann, the lead development architect for Tivoli's Integrated Service Management for System z and an IBM Master Inventor, focuses primary on System z technical strategies, solution architectures, and software designs across the Tivoli portfolio that help clients address today's IT challenges. During his 23-year IBM career, Lorin's architectural contribution has spanned a broad range of technologies, including systems management; Java, OS/2, thin client and pervasive device operating systems; printer device drivers, graphic and video engines; power management firmware; PS/2 personal computer video circuit board hardware; and IO optical storage peripherals.

  • Cecile's photo

    Cecile Day is a Senior Software Engineer for the Cloud and Smarter Infrastructure division within IBM's Software Group, and is responsible for the architecture and design of the z/OS installation, configuration, and deployment of the OMEGAMON product suite and other z/OS Tivoli Management Services. She has nearly 25 years of experience in customer support services and system software development for System z, focusing on improving implementation time-to-value. She is a member of several IBM architecture teams and customer councils, and works closely with customers and technical sales teams to provide service management solutions to IBM clients.