Airline Control System Version 2 IBM General Information Manual Release 4.1 GH19-6738-13 Airline Control System Version 2 IBM General Information Manual Release 4.1 GH19-6738-13 Note Before using this information and the product it supports, be sure to read the general information under “Notices” on page ix. This edition applies to Release 4, Modification Level 1, of Airline Control System Version 2, Program Number 5695-068, and to all subsequent releases and modifications until otherwise indicated in new editions. Order publications through your IBM representative or the IBM branch office serving your locality. Publications are not stocked at the address given below. A form for readers’ comments appears at the back of this publication. If the form has been removed, address your comments to: ALCS Development 2455 South Road P923 Poughkeepsie NY 12601-5400 USA When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you. © Copyright IBM Corporation 2003, 2019. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Figures .................................... v Tables .................................... vii Notices .................................... ix Trademarks ................................... ix About this book ................................ xi Who should read this book .............................. xi Related publications ................................ xi Chapter 1. Introduction ............................. 1 Overview of ALCS ................................. 1 General description of ALCS ............................. 2 Application programming interface ........................... 3 Chapter 2. Highlights of ALCS Version 2...................... 5 Operating environment ................................ 7 Storage above 2 GB, 64-bit addressing ........................... 7 Communication .................................. 7 Online Communication Table Maintenance (OCTM) ...................... 7 E-mail ..................................... 7 Web Server .................................... 7 Access control ................................... 8 Automated operations ................................ 8 Online help.................................... 8 Simplified installation and operation ........................... 8 System takeover facility................................ 8 Real-time database reorganization ............................ 8 High-level language support .............................. 8 Relational database support .............................. 9 WebSphere MQ for z/OS interface ............................ 9 Optimized Local Adapters for WebSphere Application Server for z/OS ............... 10 Chapter 3. Operating environment ........................ 11 End-user facilities ................................. 11 Chapter 4. Communication ........................... 13 VTAM networks.................................. 13 TCP/IP networks ................................. 14 ATA/IATA SLC networks............................... 14 Chapter 5. Online monitor functions ....................... 17 Task management ................................. 17 Storage management ................................ 17 Application program management............................ 18 DASD management ................................ 18 Real-time database data sets ............................. 19 General files and general data sets........................... 19 Files and records ................................ 19 Virtual file access ................................ 21 Recoup and Pool Directory Update .......................... 21 TPF Database Facility product ............................ 22 © Copyright IBM Corp. 2003, 2019 iii Sequential file management .............................. 22 System sequential files............................... 23 Application sequential files ............................. 24 Communication management ............................. 24 Printer support ................................. 24 Chapter 6. Messages on WebSphere MQ for z/OS ................. 25 Chapter 7. Access to relational databases .................... 27 Chapter 8. High-level languages ......................... 29 Chapter 9. Maintenance ............................ 31 Performance monitoring ............................... 31 Reconfiguration .................................. 31 Database organization ................................ 31 Communication network reconfiguration ......................... 31 Testing facilities .................................. 32 Recovery .................................... 32 Chapter 10. Testing .............................. 33 ALCS testing facilities ................................ 33 Other testing facilities ................................ 34 Chapter 11. Integrity .............................. 35 ALCS features .................................. 35 Chapter 12. Security .............................. 37 ALCS features .................................. 37 Chapter 13. Installation and migration ...................... 39 Migrating from predecessor ALCS versions and releases .................... 39 Migrating from TPF ................................ 39 Installation and migration summary ........................... 40 Required hardware ................................. 41 Required software ................................. 41 Control program................................. 41 Required software for special functions ......................... 41 Recommended software .............................. 41 Acronyms and abbreviations .......................... 43 Glossary ................................... 53 Bibliography ................................. 79 iv Airline Control System Version 2: General Information Manual Figures 1. Centralized systems ............................... 2 2. Distributed systems ............................... 3 3. ALCS overview ................................ 6 4. WebSphere MQ allows ALCS to share data ....................... 9 5. Communication facilities supported by ALCS ...................... 13 6. ALCS DASD files: Overview ............................ 18 7. ALCS file address: compressing the class, type and ordinal ................. 19 8. Chains of records ............................... 21 9. Sequential file management in ALCS ......................... 23 10. Relational database access............................. 27 © Copyright IBM Corp. 2003, 2019 v vi Airline Control System Version 2: General Information Manual Tables 1. VTAM networks ................................ 14 2. ATA/IATA SLC network ............................. 14 3. Migrating to ALCS Version 2 Release 4 ........................ 39 4. Installing ALCS Version 2 Release 4 ......................... 40 © Copyright IBM Corp. 2003, 2019 vii viii Airline Control System Version 2: General Information Manual Notices References in this publication to IBM® products, programs or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only IBM's product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any of IBM's intellectual property rights may be used instead of the IBM product, program, or service. Evaluation and verification of operation in conjunction with other products, except those expressly designated by IBM, is the user's responsibility. IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to: The Director of Licensing IBM Corporation 500 Columbus Avenue Thornwood, NY 10594 USA Licensees of this program who wish to have information about it for the purpose of enabling: (i) the exchange of information between independently created programs and other programs (including this one) and (ii) the mutual use of the information which has been exchanged, should contact: IBM Corporation Department 830A 522 South Road Mail Drop P131 Poughkeepsie, NY 12601-5400 USA Such information may be available, subject to appropriate terms and conditions, including in some cases, payment of a fee. Trademarks IBM, the IBM logo, and ibm.com® are trademarks or registered trademarks of International Business Machines Corp., registered in many jurisdictions worldwide. Other product and service names might be trademarks of IBM or other companies. A current list of IBM trademarks is available on the Web at Copyright and trademark information at www.ibm.com/legal/copytrade.shtml. Java™ and all Java-based trademarks and logos are trademarks or registered trademarks of Oracle and/or its affiliates. © Copyright IBM Corp. 2003, 2019 ix x Airline Control System Version 2: General Information Manual About this book This book presents general overview and planning information for Release 4.1 of Airline Control System (ALCS) Version 2, an IBM licensed program. ALCS is one of a family of IBM programs designed to satisfy the needs of airlines and other industries with similar requirements for high-volume and high-availability transaction processing. Who should read this book This publication is intended for executives and data processing professionals wishing to choose a transaction processing system. After reading this