R

R_Admin callable service 8, 11

RACF

classroom courses xiii publications

on CD-ROM xii softcopy xii

RACF 1.9

migration path from 22 RACF 1.9.2

migration path from 22 RACF 2.1

migration path from 22 RACF 2.2

migration path from 21 RACF administration

classroom courses xiii RACF panels

changed 19

RACF releases prior to 1.9 migration path from 22

RACF remote sharing facility 1 See alsoRRSF

RACF security topics classroom courses xiii

RACF/DB2 external security module 29 RACLIST keyword 10

RACROUTE macro, changes to 17 RACROUTE REQUEST=AUTH 10, 32 RACROUTE REQUEST=FASTAUTH 16, 35 RACROUTE REQUEST=LIST 10, 32 RCVT data area 16

RCVT value 2040 9

Record Fields

SMF80DA2 33

SMF80DTA 33

RELEASE=2.4 keyword on macros 17, 23, 35 remote sharing 1

See alsoRRSF router table

installation-defined classes 29 RRSF local nodes 9

run-time library services overview 7

RUTKN data area 16

S

SAFP data area 16

Security Server (RACF) Release 1 migration path from 21

security topics for RACF classroom courses xiii

SETROPTS

command

10

 

SETROPTS

RACLIST

command 32

SMF records

 

 

changes

to

23,

33

SMFID

8

 

 

 

 

spawn

service

 

 

auditing

6

 

 

SQA

 

 

 

 

 

storage

requirement 25

storage

for

RACF

 

virtual

 

25

 

 

storage

requirement

virtual

 

for

RACF

25

superuser

status

 

auditing

6

 

 

SYS1.SAMPLIB

change for DB2 authorization support 19 system identifier 8

system-wide default

for OpenEdition segment information 6

T

TARGET

command

9, 13

TARGET

command

enhancements 9

templates

 

installation

considerations 27

TMEADMIN

class

8

U

user private, below 16MB storage requirement 27

V

virtual storage requirement for RACF 25 virtual storage usage for RACF 25

W

WDSQUAL keyword on TARGET command 9

Index 51

Page 71
Image 71
IBM OS/390 manual SMF80DTA, See alsoRRSF router table, Raclist, Smfid, Sqa

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.