Comprehensive Mainframe Training in Madipakkam, Chennai
Mainframe modernization involves updating legacy mainframe systems to incorporate modern interfaces, development environments, and DevOps tooling integration. This transformation aims to eliminate the limitations of the legacy environment while preserving mainframe features like reliability, availability, serviceability (RAS), security, and scalability. Despite the simplicity in concept, modernizing enterprise workloads is complex. Let’s explore what mainframe modernization entails, how to achieve it, and the available options.
Mainframe modernization can range from enhancing existing mainframe applications with modern user interfaces to fully converting them to distributed applications in languages like Java/J2EE or .Net, or even hosting them on cloud infrastructures.
Modernizing the front end with graphical user interfaces (GUIs) based on Eclipse, such as IBM Developer for z (IDz) and z Open Development (ZOD), offers significant benefits. Utilizing Eclipse’s framework for code analysis, program outline views, and code snippets simplifies enhancements and reduces the effort required.
Integrating middleware components with REST APIs enables access through web browsers and other tools. This approach facilitates modernization by allowing applications to interact seamlessly with contemporary technologies.
By utilizing tools such as Jenkins for z/OS, GIT for z/OS, IBM DBB, and UCD on z/OS, organizations can transform their legacy applications into an Enterprise DevOps environment. This transformation enhances agility and streamlines development and operations processes, facilitating more efficient and responsive workflows.
Approaches to mainframe modernization include re-hosting, re-platforming, or refactoring applications for cloud platforms such as Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Private (GCP). The benefits of these approaches include leveraging the scalability, flexibility, and cost-effectiveness of cloud infrastructure.
Offering modern, GUI-based tools for mainframe development, operations, and administration to address challenges like cumbersome green screen interfaces, time-consuming navigations, and high costs associated with legacy systems.
Reducing the effort and time required for program compilation and mainframe usage (MIPS), thus improving operational efficiency.
Enabling middleware access via modern web technologies to enhance application interactions and user experiences.
Implementing DevOps tools and practices to streamline development, improve code quality, and accelerate delivery cycles.
Providing options for migrating mainframe applications to cloud environments to take advantage of modern infrastructure capabilities.
– Choosing Programming Languages and Methods to Use
– Preparing an Application Program to Run
– Writing Static SQL Applications
– Overview of Static SQL
– Static SQL Programming Concepts
– Static SQL Programming Concepts
– Dynamic SQL Applications
– Triggers for Active Data
– Coding Triggers
– Parts of a Trigger
– Trigger Cascading
– Scrollable Cursors
– Sensitive Scrollable Cursors
– In sensitive Scrollable Cursors
Stored Procedure Concepts – Introduction
– System Programs
– System Tables
– Application Programs
– Mapsets
– Simple Application program to get input, process it and send output to the terminal
– EXEC INTERFACE BLOCK Concept and Usage
– Using a COMMAREA
– Pseudo conversational design
– SEND and RECEIVE
– Exception handling
– HANDLE CONDITION
– IGNORE CONDITION
– NOHANDLE and RESP commands
– Scroll CEDF displays
– Overtype argument values and response codes on CEDF displays
– Display the EXEC Interface Block
– Display previously traced commands
– Continue CEDF with pseudo conversational transactions
– Request a task ABEND from CEDF
– Map preparation and usage
– How to create a BMS Mapset
– Physical and Symbolic Map
– How to design user-friendly screens
– How attributes control the look and operation of a field
– How to code BMS macros
– The BMS mapset and symbolic map for the customer maintenance program
– How to assemble a BMS mapset
– Extended attributes
– Cursor positioning
– Dynamic Attribute Character Assignments
– Data declarations to reference records and rows
– Accessing VSAM Files ESDS, KSDS etc.
– Reading single records and rows
– Reading sets of records and rows
– Adding, deleting, and modifying records and rows
– Integrity considerations
– CICS transient data queues
– Intra and Extra Partition Data Sets
– Features of TDQ
– Automatic Task Initiation
– CICS temporary storage queues
– LINK with COMMAREA
– XCTL with COMMAREA
– The COBOL CALL
– STARTing a new transaction
– Pseudo Conversational Techniques
– CICS with DB2
– How to access DB2 from CICS region
– JCL Statements,
– Sample JCL with utility
– JCL Introduction,
– JOB, EXEC & DD Statement syntax & explanation
– Submitting the JCL with IBM supplied utilities
– SDSF
– IBM Utilities – Utilities like IEFBR14, IEBGENER – IEBGENER to copy and Concatenate datasets;
– VSAM data Organization-Types of Data sets – Data set
– DEFINE, ALTER – Creating VSAM Data set;
– Altering the attributes of data sets –
– Printing the data set information – Deleting data set -Listing the information