Chapter 1

Introducing the VSAM eWay

Welcome to the Sun SeeBeyond eWay™ Adapter for VSAM User’s Guide. This document includes information about installing, configuring, and using the Sun Java Composite Application Platform Suite VSAM eWay™ Adapter, referred to as the VSAM eWay throughout this guide.

This chapter provides a brief overview of operations, components, general features, and system requirements of the VSAM eWay.

What’s in This Chapter

ƒAbout VSAM on page 7

ƒAbout the VSAM eWay on page 8

ƒWhat’s New in This Release on page 8

ƒAbout This Document on page 9

ƒRelated Documents on page 10

ƒSun Microsystems, Inc. Web Site on page 11

ƒDocumentation Feedback on page 11

1.1About VSAM

Virtual Storage Access Method (VSAM) is one of several access methods that defines the technique by which data is stored and retrieved. It is a GET/PUT interface used to transfer data from a direct-access storage device (DASD) to an application program. VSAM does not support data stored on tape.

VSAM stores data as a collection of data sets. IBM uses a collection of three data-set organizations—sequential, indexed, and direct-access, together with the access methods and utilities used on mainframe operating systems.

VSAM data sets must be cataloged in an integrated catalog facility (ICF) structure. Records are arranged by an index key or by relative-byte addressing. VSAM uses direct or sequential processing of fixed and variable-length records stored on a DASD.

VSAM also provides the following features:

ƒAllows you to organize and access data (record management).

VSAM eWay Adapter User’s Guide

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Sun Microsystems, Inc.

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Sun Microsystems 5.1.3 manual About Vsam, What’s in This Chapter
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5.1.3 specifications

Sun Microsystems 5.1.3 represents a significant version in the evolution of Sun's software products, particularly in the area of network operating systems and development tools. Released during a time when Sun was a leading enterprise in the field of computing, 5.1.3 brought a host of new features, enhancements, and technologies that catered to the demands of users looking for robust and reliable IT infrastructure.

One of the defining characteristics of Sun Microsystems 5.1.3 was its enhanced scalability. The operating system was designed to handle large amounts of data processing and support numerous simultaneous users. This feature made it particularly attractive for businesses operating in resource-intensive environments such as finance, telecommunications, and large-scale enterprise applications.

A significant focus for 5.1.3 was its improved networking capabilities. The release integrated advanced networking protocols, allowing for better interoperability between systems. This feature enabled seamless communication across diverse hardware platforms, thus enhancing productivity and collaboration among users.

In terms of software development, Sun Microsystems 5.1.3 included an updated toolset that made application development more accessible. Its support for various programming languages, including C, C++, and Java, facilitated a versatile development environment. The included Sun C/C++ Compiler was particularly noteworthy, providing developers with optimized performance and debugging features.

Security features were also a priority in 5.1.3, addressing growing concerns over data protection and system vulnerabilities. The system implemented advanced user authentication, role-based access controls, and encrypted communications, thereby bolstering the integrity of user data and enhancing overall system security.

Additionally, Sun Microsystems 5.1.3 incorporated reliable file system technologies like the Sun File System (UFS), which offered improved performance and data integrity. This file system was particularly effective for enterprises that required high availability and data protection due to its robust recovery options.

Overall, Sun Microsystems 5.1.3 showcased a blend of advanced technologies, user-oriented features, and robust performance characteristics that positioned it as a compelling choice for enterprises seeking reliable and efficient computing solutions. It illustrated Sun's continuous commitment to innovation, ensuring users were equipped with the cutting-edge tools necessary to thrive in an increasingly digital world.
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