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IBM OS/390 manual Remote Job Entry, Functional RJE Differences, Remote Workstation Definitions

Models: OS/390

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Table 15. POWER/ICCF, VM/CMS, and JES2/TSO Functional Comparison

Interactive

POWER -

VM - CMS

JES2 - TSO/E

Interfaces

ICCF

 

 

 

 

 

 

Submit Jobs

Y

Y (Spool,

Y (TSO Submit)

 

 

Tag, Punch)

 

 

 

 

 

Authorization

ICCF

-

RACF or Exits

Control

Administrator

 

 

 

 

 

 

Operating System

Y

Y (SMSG)

Y (Extended Consoles, or

Console Commands

 

 

SDSF)

 

 

 

 

Read Access to

Y

Y

Y (TSO Output, or SDSF)

Spoolfile

 

 

 

RDR/LIST/PUNCH

 

 

 

 

 

 

 

Inquire on Status of

Y

Y

Y (TSO Status, or SDSF)

Jobs and Output

 

 

 

 

 

 

 

Cancel Jobs and

Y

Y

Y (TSO Cancel, or SDSF)

Output

 

 

 

 

 

 

 

Jobs can be submitted with the TSO/E SUBMIT command, any ISPF EDIT panel, or SDSF using the SJ command on any job display.

Output can be browsed with the TSO/E OUTPUT command, the ISPF 3.8 panel, or SDSF using the O (output) or H (Held output) panels. The preferred interface is through SDSF.

10.3.6 Remote Job Entry

Both VSE/POWER and OS/390 JES2 support ²non-programmable² Binary Synchronous Communication (BSC) remote workstations such as the IBM 2770, 2780, and 3780. Both support SNA single and multiple logical unit remote workstations such as the IBM 3770, and 3790.

Only POWER supports the IBM 3741 Data Station.

Only JES2 supports the multi-leaving BSC remote workstation such as the IBM S/360 Model 20 or 3773-2.

10.3.6.1 Functional RJE Differences

Both POWER and JES2 support remote and line passwords for remote workstation verification at sign-on time. Both support compression and SNA compaction.

10.3.6.2 Remote Workstation Definitions

Use the following JES2 initialization statements to define your RJE workstations and environment:

TPDEF Global definitions for RJE (and NJE) BSC & SNA buffer sizes, and

number of SNA sessions supported simultaneously

LINEBSC and SNA TP Lines - these can be used for either RJE or NJE. See Table 18 on page 228 for a comparison of PLINE macros to JES2 LINE parameters.

Chapter 10. POWER and JES2 219

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IBM OS/390 manual Remote Job Entry, Functional RJE Differences, Remote Workstation Definitions, Interactive, Interfaces
Page 242 Page 244

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.