Rui Miguel Feio

Recent Articles

[ 26th October 2026 ] Quantum Computing and the Mainframe: A Threat, an Opportunity, or Both? Tech - Mainframe
[ 19th October 2026 ] When AI Meets RACF: Can an Authorised Identity Become a Security Risk? RACF
[ 14th October 2026 ] AI Gone Wild: When Artificial Intelligence Stops Following the Rules Documentaries
[ 12th October 2026 ] The AI Systems Programmer: Is the Mainframe Skills Gap About to Change? Tech - AI
[ 5th October 2026 ] AI Sovereignty: Perhaps the Mainframe Had It Right All Along Tech - AI

IBM zEnterprise Cloud & Consolidation

24th July 2011 Rui Miguel Feio

Highlights of the benefits of using the IBM zEnterprise System for cloud computing and consolidation. It describes how organizations can speed up the delivery of new innovations while lowering infrastructure costs.

Tech - Mainframe

What is IBM zEnterprise System?

24th July 2011 Rui Miguel Feio

What is RACF and what does it do?

1st July 2011 Rui Miguel Feio

RACF (Resource Access Control Facility) helps to secure an organization’s Mainframe environment by providing: – Flexible control of access to protected resources – Protection of installation-defined resources – Ability to store information for other products – Choice of centralized or decentralized control of profiles – An ISPF panel interface – […]

Types of JCL Statements

30th June 2011 Rui Miguel Feio

JOB – Identifies the beginning of a job. The JOB statement informs the operating system of the start of a job, gives the necessary accounting information, and supplies run parameters. Each job must begin with a single JOB statement EXEC – Indicates what work is to be done. EXEC (execute) statement […]

XCF Group

22nd May 2011 Rui Miguel Feio

A group is the set of related members defined to XCF by a multisystem application in which members of the group can communicate with other members of the same group. A group can span one or more of the systems in a sysplex and represents a complete logical entity to […]