Vendor Applications, Cics with DL/I

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handling output from CICS dumps.

handling output from CICS trace.

handling output from CICS statistics.

problem determination.

restart and recovery requirements.

security administration.

application of software services.

Identify and understand the different IBM and vendors support structures and procedures. You should have available:

personal names of your contact points telephone numbers

Therefore, you should see that your system management procedures are updated. The following manuals CICS Operations and Utilities Guide, SC33-1167, CICS User′s Handbook, SX33-6104, CICS Messages and Codes, GC33-1694, CICS Glossary GC33-1705, and CICS Problem Determination Guide, GC33-1693 should be used during these periods.

6.1.15 Vendor Applications

In CICS Transaction Server for OS/390, the autoinstall user program invoked for installation and deletion of virtual terminals is used by the External Presentation Interface (EPI) and terminal emulator functions of the CICS Clients products.

They are defined to CICS as remote 3270 devices. You should be sure your vendor products will work with the supported autoinstall program.

For an introduction to the CICS Clients products, and detailed information about OS/390 support for them, see the CICS/ESA Server Support for CICS Clients manual.

Customers should be advised to contact the suppliers of any third-party software used with CICS to ensure that the supplied packages will run with CICS Transaction Server for OS/390.

6.2 CICS with DL/I

The CICS TS - IMS/VS interface is implemented differently than the CICS/VSE - DL/I interface.

If you are a CICS local DL/I user you must plan to migrate your databases to DBCTL. Alternatively, you can use CICS function shipping to CICS/VSE DL/I data sets. These are the only two methods of DL/I database access that CICS continues to support.

For information about migrating to DBCTL see the CICS IMS Database Control Guide.

154VSE to OS/390 Migration Workbook

OS/390 specifications

IBM OS/390, a versatile operating system, was a cornerstone in enterprise environments and played a pivotal role in mainframe computing. Released in the mid-1990s, OS/390 combined the strengths of IBM's MVS (Multiple Virtual Storage) with new features and enhancements, targeting scalability, reliability, and performance in demanding business applications.

One of the key features of OS/390 was its robust support for multiple users and processes. The system allowed thousands of concurrent users to access applications and data, ensuring high availability and minimizing downtime—a critical requirement for many large organizations. This scalability was supported through various enhancements in memory management and processor scheduling, enabling optimal resource allocation across diverse workloads.

OS/390 was known for its superior workload management capabilities. The Workload Manager (WLM) component allowed administrators to define service policies, specifying how system resources would be allocated according to the priority of tasks. This ensured that critical business processes received the necessary resources while less critical tasks were managed more flexibly.

Another significant characteristic of OS/390 was its commitment to security. The operating system provided comprehensive security features, including user authentication, data encryption, and auditing capabilities. This focus on security was vital for organizations handling sensitive data, ensuring compliance with regulations and safeguarding against unauthorized access.

OS/390 also supported advanced technologies that facilitated integration and development. The system included features like the IBM CICS (Customer Information Control System) for transaction processing and IMS (Information Management System) for database management. These technologies allowed organizations to build robust, high-performance applications tailored to specific business needs.

The ease of network integration was another strength of OS/390. With the advent of the Internet and global connectivity, OS/390 systems could easily interface with various network protocols, enabling businesses to operate in a connected world. This inclusion paved the way for many organizations to expand their capabilities and offer new services, driving digital transformation.

In conclusion, IBM OS/390 represented a significant advancement in mainframe technology, combining scalability, security, and robust workload management. Its rich feature set and support for critical enterprise applications solidified its role as a vital component of many organizations' IT infrastructures, ensuring they could meet their operational challenges head-on while supporting future growth. As technology continues to evolve, the legacy of OS/390 remains influential in the realm of computing.