ŸChapter 6, “Customization Considerations” on page 29, highlights information

about customizing function to take advantage of new support after t release of RACF is installed.

Ÿ Chapter 7, “Administration Considerations”

on

page 31,

summarizes changes

to administration procedures for the

new

release

of RACF.

ŸChapter 8, “Auditing Considerations” on page 33, summarizes changes to

auditing procedures for the new release of RACF.

ŸChapter 9, “Application Development Considerations” on page 35, identifies

changes in the new release of RACF that might require changes to a installation's existing programs.

ŸChapter 10, “General User Considerations” on page 37, summarizes new support that might affect general user procedures.

Where to Find More Information

Where necessary, this book references information in other books. For titles and order numbers for all products that areOS/390part of OS/390, se Information Roadmap.

Softcopy Publications

The

OS/390

Security Server (RACF) library is available on the following CD-

The

CD-ROM

collections include the

IBM Library Reader, a program that

customers

to read the softcopy

books.

ŸThe OS/390 Security Server (RACF) Information , PackageSK2T-2180

This

softcopy

collection

kit

contains

the

OS/390

Security

Server

(RACF)

It

also contains the RACF/MVS Version

2 product libraries, the RACF/VM

product library, product books from the OS/390 and VM collections,

International Technical Support Organization (ITSO) books,

and

Washington

System Center (WSC) books that contain substantial amounts

of

information

related

to RACF.

The

kit

does

not

contain

any

licensed

publications.

this

CD-ROM, you have

access to RACF-related information

from

IBM prod

such

as OS/390, VM, CICS, and NetView without maintaining shelves of

hardcopy documentation or handling multiple CD-ROMs. To get more

 

information on OS/390the Security

Server

(RACF) Information , Packagesee

 

 

the

advertisement

at

the back

of

the

book.

 

 

 

 

Ÿ The OS/390

Collection

,Kit SK2T-6700

 

 

 

 

 

 

 

 

 

This

softcopy

collection

contains

a

set

of

OS/390 and related

produc

This

kit

contains

unlicensed

books.

 

 

 

 

 

 

 

ŸThe Online Library Omnibus Edition MVS CollectionSK2T-0710Kit,

This softcopy collection contains a set of key MVS and MVS-related pr books. It also includes the RACF Version 2 OS/390productSecuritylibraries.

Server (RACF) Messages and Codesis also available asOnlinepartLibraryof Productivity Edition Messages and Codes Collection,SK2T-2068.

xii OS/390 V2R4.0 Security Server (RACF) Planning: Installation and Migration

Page 14
Image 14
IBM manual Where to Find More Information, OS/390 Security Server Racf Information , PackageSK2T-2180, OS/390 Collection

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.