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Tandemsystemsreview V8N2 Summer92 T A N D E M SYSTEMS REVIEW RDF Terminal Selection Terminal Connectivity Options Technical Information and Education Product Update • Ongoing Support T A N D E M VOLUME 8, NUMBER 2 SUMMER 1992 1lTANDEM EDITORIAL DIRECTOR Susan W. Thompson EDITOR Steven Kahn ASSOCIATE EDITORS: David Gordon. Mark Peters. William Schlansky ASSISTANT EDITOR: Hannah Silver PRODUCTION MANAGER Anne Lewis Editor's Note ILLUSTRATION AND LAYOUT Christine Kawashima The number of alternatives for connecting COVER ART: Steve Elwood terminals and workstations to host systems has increased dramatically as new standards SUBSCRIPTIONS: Elaine Vaza-Kaczynski and vendors have entered the marketplace. Tandem systems support many of these ADVISORY BOARD terminal connection alternatives while provid­ Mark Anderton, Jim Collins, ing the flexibility and performance necessary Dennis Fukuyama, Terrye Kocher, to optimize applications. This issue includes Mike Noonan two articles on terminal connectivity: "Terminal Selection" and "Connecting Tandem Systems Review is published quarterly Terminals and Workstations to Guardian 90 by Tandem Computers Incorporated. All correspondence and subscriptions should Systems." By discussing and comparing the be addressed to Tandem Svstems Review, many terminal types and terminal connectivity I 8922 Forge Drive, Loe 216-05, Cupertino. options, these articles can help users determine CA 95014. the best design for their requirements. Subscriptions: $75.00 per year; single copies are $20.00. Detailed subscription informa­ The RDF (Remote Duplicate Database tion is provided on the subscription order Facility) product makes it possible for a back­ form at the end of this book. up database on a remote system to take over Tandem Computers Incorporated assumes database functions when the primary system is no responsibility for errors or omissions that unavailable. The feature article in this issue, may occur in this publication. "RDF Synchronization," describes possible Copyright © 1992 Tandem Computers causes of desynchronization and methods of Incorporated. All rights reserved. No part resynchronizing the databases. of this document may be reproduced in any form, including photocopy or translation to This issue introduces a new department another language, without the prior written that will appear regularly in the Tandem consent of Tandem Computers Incorporated. Systems Review. "Technical Information CLX, CLX/R, Cyclone/R, Envoy, and Education" is an annotated list of new Expand, Guardian, Guardian 90, Integrity, consulting and information services, software Integrity S2, Multilan, NonStop, RDF, See View, SNAX. Tandem, the Tandem education courses, and books that Tandem is logo, and TMF are trademarks and service offering its users. marks of Tandem Computers Incorporated, protected through use and/or registration -SWT in the United States and many foreign countries. Access/One, NIU, and Ungermann-Bass are trademarks of Ungermann-Bass, Inc. UNIX is the registered trademark of UNIX System Laboratories, Inc. in the USA and other countries. All brand names and product names are trademarks or registered trademarks of their respective companies. TERMINAL CONNECTIVITY 24 Terminal Selection Eric D. Siegel 38 Connecting Terminals and Workstations to Guardian 90 Systems Eric D. Siegel FEATURE 6 RDF Synchronization Wouter Se11;f, Frans Jongma DEPARTMENTS 2 Product Update 60 Technical Information and Education 64 Ongoing Support: lnfoWay Online Support Service 67 Index of Articles . NonStop NET/MASTER Software ■ uarlian II May 1992 Baaelalllare NonStop NET/MASTER software simplifies the management of Tandem NonStop systems. By automating Guardian 90 Operating System, many operations, it helps users reduce Release C30.08 operations costs due to human error July 1992 and time-consuming repetitive tasks. The C30.08 release of the Guardian 90 NonStop NET/MASTER software, operating system enhances the perfor­ an extension of Tandem's Distrib­ mance of Tandem's Transmission uted Systems Management (DSM) Control Protocol/Internet Protocol architecture, allows users to coopera­ (TCP/IP) software, Expand networking tively manage Tandem systems with software, and Exchange remote job IBM systems running NET/MASTER entry (Exchange/RJE) software, as or Net View. By using NonStop well as the Tandem group of OSI NET/MASTER software, users can, products. It also provides support for from a single console, perform all the 5200 Optical Storage Facility and critical management tasks on central­ the 5180 Cartridge Tape Subsystem ized or distributed systems and pro­ on Cyclone/R systems and CLX 2000 tect their systems from unauthorized systems. access. Each console can be custom­ ized according to the user's needs. Information Engineering Facility for Tandem April 1992 The Information Engineering Facility (IEF) for Tandem is an application development tool using integrated computer-aided software engineering (I-CASE) technology. IEF is an I-CASE product from Texas Instruments. It offers a fully integrated development software package, covering the entire application life cycle from information systems planning through ongoing application enhancement. 2 TANDEM SYSTEMS REVIEW SUMMER 1992 IEF for Tandem extends the range Improved Disk Drive for the Tandem SQL Server Gateway of the Texas Instruments product to XL80 Disk Storage Facility December 1991 Tandem's fault-tolerant NonStop February 1992 Tandem SQL Server Gateway makes architecture. It also incorporates A new disk drive is now available it possible for applications and tools a number of unique features, which for use in the XL80 disk storage supported by SQL Server to access include support for nonterminal facility. The new drive provides NonStop SQL databases through devices, integration with Tandem improved reliability with price and Tandem's relational database manage­ operations-management tools, defini­ performance similar to that of the ment system (RDBMS), NonStop SQL. tion of NonStop SQL databases, auto­ original disk drives. SQL Server is an RDBMS that runs on matic generation of online transaction OS/2 and UNIX workstations. Tandem processing (OLTP) test environments, SQL Server Gateway runs on a Tandem and fault tolerance and data integrity. Remote Server Call Guardian 90 host. With IEF, application design is November 1991 Tandem SQL Server Gateway independent of the target system. uses a client-server architecture Developers using IEF can therefore The Tandem Remote Server Call in which a client-based application focus on the business requirements (RSC) provides the means to connect process makes calls to a server-based of their applications rather than on PCs with Pathway and non-Pathway database process. Clients are LAN­ considerations specific to a target servers. By integrating PCs and other based (PC or workstation) applications system. Users of IEF for Tandem can intelligent devices with Tandem's and tools that use the SQL Server quickly create, in either C or COBOL Guardian 90 and Pathway systems, interface. Clients communicate with complete OLTP and batch applicatio~s RSC allows users to implement OL TP Tandem SQL Server Gateway as if it for Tandem NonStop systems. applications based on a client-server architecture. The PC interface in RSC were an actual SQL Server. supports most PC-based languages, Two-Processor Cyclone/A 4GLs, tools, and other applications. System RSC optimizes desktop and main­ April 1992 frame computing resources for OLTP. RSC is especially beneficial to users The Cyclone/R system is now avail­ who have Pathway-based applications, able in a two-processor configuration allowing PC-based clients to take full (05020) that extends the Cyclone/R advantage of their servers without system family to 27 transactions per changing existing server code. second (TPS) per system. The two­ processor Cyclone/R system provides a lower entry point for the Cyclone/R system family, making it easier for users to migrate to RISC processing. SUMMER 1992 TANDEM SYSTEMS REVIEW 3 3602, 3603, Envoy on RISC OSI/MHS Gateway Systems Programmatic Interface NanStop-Ull Based March 1992 March 1992 Software The 3602 and 3603 controllers The OSI/MHS Gateway Programmatic and Envoy data communications Interface ( GPI) provides users with ORACLE Relational Database manager are now available on the a gateway, based on the X/Open and Management System, Cyclone/R system and on all models X.400 API Association (XAPIA) stan­ Release 6.0.33 of the CLX/R system, as well as on dards, that allows programmatic ac­ March 1992 the CLX 2000 system. To use these cess to Tandem's OSI/MHS product. products on their RISC systems, users The OSI/MHS GPI provides access for Release 6.0.33 is Tandem's latest must have the C30.07, or later, release proprietary applications interfacing release of the ORACLE relational of the Guardian 90 operating system. to the X.400 message-handling system database management system This release of the Guardian 90 sys­ from a Guardian 90 operating system (RDBMS) and suite of tools for the tem includes Tandem Maintenance environment. The OSI/MHS GPI is Tandem Integrity S2 systems. The and Diagnostic System (TMDS) now available to all users. new release provides transaction-level support for the 3602, 3603, and control of rollback segment use. It also Envoy products. makes available a new version, release 5.011, of SQL*Menu. This release of SQL*Menu takes advantage of Oracle's standard menu-handling and terminal interface. 4 TANDEM SYSTEMS REVIEW SUMMER 1992 lnformix Relational Database INGRES Relational
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