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AS/400系统操作入门 AS/400，全称Application System/400，是由IBM开发的一款中型企业级服务器系统。这个系统以其稳定性、安全性以及强大的数据库处理能力而闻名，广泛应用于金融、制造、零售等多个行业。本文将深入介绍AS/400系统的基本操作，帮助初学者快速掌握这一重要的技术平台。一、系统架构与组件 AS/400系统基于IBM i操作系统，这是一个集成化的系统，包含操作系统、数据库、中间件以及开发工具。其核心组件包括： 1. IBM i操作系统：提供系统管理、安全、网络和存储管理等功能。 2. DB2 for i：AS/400的内置数据库，支持SQL语言，具有高可用性和数据完整性。 3. RPG (Report Program Generator) 和CL (Control Language)：两种主要的编程语言，用于开发业务应用和系统脚本。二、AS/400系统启动与登录 1. 系统启动：AS/400系统启动涉及多个阶段，如硬件自检、加载操作系统等，通常通过系统操作员或远程管理工具进行监控。 2. 登录：用户可以通过5250终端模拟器或Web界面（如iSeries Navigator）登录，输入用户ID和密码进行身份验证。三、基本操作 1. 工作站管理：设置和管理用户工作站，分配权限，配置打印机和网络设备。 2. 文件与数据库管理：创建、修改和删除数据库表，执行SQL查询，进行数据备份和恢复。 3. 系统监控：通过系统日志、性能监视器跟踪系统活动，确保正常运行。 4. 安全管理：设置用户权限，控制访问级别，防止未授权访问。四、编程与开发 1. RPG：用于编写业务逻辑，支持面向过程和面向对象编程，适用于事务处理和报表生成。 2. CL：用于编写系统脚本，执行批处理任务，自动化系统管理操作。 3. ILE (Integrated Language Environment)：支持RPG、CL与其他语言（如C、Java）的混合编程，提升开发效率。五、网络与通信 AS/400系统支持多种网络协议，如TCP/IP，可与其他系统进行数据交换。通过FTP、SFTP、HTTP/HTTPS等方式进行文件传输，实现与Windows、Linux等系统的互操作。六、系统维护与更新 1. 系统升级：定期检查并安装IBM发布的系统补丁和更新，保持系统安全稳定。 2. 性能优化：根据系统负载调整资源分配，优化数据库查询，提高响应速度。 3. 灾难恢复：制定备份策略，定期备份数据，以便在系统故障时快速恢复。七、现代AS/400发展趋势随着技术进步，AS/400系统逐渐向云计算、移动应用和数据分析转型。IBM推出了IBM Power Systems，支持IBM i、AIX和Linux等操作系统，进一步扩展了AS/400的应用场景。总结，AS/400系统操作涵盖了从基础的系统管理到高级的编程开发，理解并熟练掌握这些知识，对于在企业环境中有效地使用和维护AS/400系统至关重要。通过不断学习和实践，可以成为AS/400领域的专家，为企业带来高效、稳定的IT支撑。

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introduction-to-as400-system-operations （424个子文件）

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<HTML> <HEAD> <META name=vsisbn content="1882419294"> <META name=vstitle content="An Introduction to AS/400 System Operations"> <META name=vsauthor content="Patrice Gapen Heidi Rothenbuehler"> <META name=vspublisher content="29th Street Press"> <META name=vspubdate content="09/01/96"> <META name=vscategory content="Hardware and Operating Systems: Operating Systems: AS/400"> <TITLE>An Introduction to AS/400 System Operations:Index</TITLE>  <STYLE type="text/css">  </STYLE> <META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW">          <CENTER> <TABLE BORDER> <TR> <TD><A HREF="ewtoc.html">Table of Contents</A></TD> </TR> </TABLE> </CENTER> <H2><A NAME="Heading1"></A>Index</H2> <DL> <DD>C5250 Data Stream, 178 </DL> A <DL> <DD>*ADD data authority, 34 <DD>Addresses, 102 <DD>*ADVANCED assistance level, 20 <DD>*ALL authority, 23 <DD>*ALLOBJ special authority, 23 <DD>Architecture, 1-2 <DL> <DD>LIC, 2 <DD>storage management, 1-2 <DD>support, 1 </DL> <DD>AS/400 <DL> <DD>addresses, 102 <DD>architecture, 1-2 <DD>database access, 191-212 <DD>file formats, 184 <DD>Help, 52-55 <DD>PC connection, 174-175 <DD>powering down, 167-170 <DD>security system, 16 <DD>transfer requests and, 185-187 </DL> <DD>AS/400 Device Configuration Guide, 113, 114 <DD>AS/400 Operational Assistant Menu, 41-43 <DL> <DD>accessing, 136 <DD>with Help screen overlay, 53 <DD>illustrated, 41, 81, 136 <DD>Option 1, 41, 80 <DD>Option 2, 41 <DD>Option 3, 42 <DD>Option 4, 42 <DD>Option 5, 42 <DD>Option 10, 42 <DD>Option 11, 42, 137 <DD>Option 75, 42 <DD>Option 80, 42 <DD>Sign-On screen, 43 <DD>See also Operational Assistant </DL> <DD>Assistance levels <DL> <DD>Basic, 81-86 <DD>changing, 20 <DD>defined, 20 <DD>Intermediate, 86-91 <DD>types of, 20 </DL> <DD>*AUDIT special authority, 23 <DD>Auditing, 17 <DD>Authorities, 8, 22-24 <DL> <DD>*ALL, 23 <DD>*CHANGE, 23 <DD>data classifications, 34 <DD>*EXCLUDE, 23 <DD>group, 25 <DD>predefined values, 33 <DD>*PUBLIC, 31 <DD>search path, 35-36 <DD>special, 23-24 <DD>*USE, 23 <DD>See also Security </DL> <DD>Authorization lists (*AUTL), 31-34 <DL> <DD>authority types, 32-33 <DD>defined, 31 <DD>displaying, 32 <DD>uses for, 31 </DL> <DD>Authorized program analysis report (APAR), 144 <DD>Automatic configuration, 114 </DL> B <DL> <DD>Backup: Recovery Basic Guide, 142 <DD>Backup plans, 123-127 <DL> <DD>cleanup and, 134-136 <DD>creating, 123-127 <DD>daily, 126 <DD>diskette considerations, 130-134 <DD>examples of, 126 <DD>quarterly, 126 <DD>tape considerations, 127-130 <DD>time for, 124 <DD>weekly/monthly, 126 <DD>See also Restoring </DL> <DD>Backup Tasks menu, 138 <DD>Backups, 16 <DL> <DD>collating sequence, 130 <DD>inventory list and, 134 <DD>restricted, 138 <DD>running, 136-144 <DD>Save commands and, 124-125 <DD>save files, 139-141 <DD>setting up, 138-139 <DD>storage reclamation, 134 </DL> <DD>*BASIC assistance level, 20, 81-86 <DD>Batch jobs, 27, 28, 57 <DL> <DD>holding, 58, 64 <DD>releasing, 64-65 <DD>removing, 65 <DD>submitting, 57-58 <DD>verifying status of, 62-64 <DD>viewing, 63 <DD>See also Jobs </DL> <DD>Batch subsystem, 3-4 <DD>BCHJOB (Batch Job) command, 27 <DD>Binary Interchange File Format (BIFF) format, 185 </DL> C <DL> <DD>*CHANGE authority, 23 <DD>Change Printer Output screen, 84 <DD>CHGCLNUP (Change Cleanup) command, 135 <DD>CHGMSGQ (Change Message Queue) command, 73-74 <DL> <DD>additional parameters, 75 <DD>screen, 74 </DL> <DD>CHGSHRPOOL (Change Shared Storage Pool) command, 157 <DD>CHGSPLFA (Change Spooled File Attributes) command, 92 <DD>CHGSYSVAL (Change System Value) command, 154 <DD>CL commands, 43-50 <DL> <DD>abbreviations, 44 <DD>checking syntax of, 28 <DD>in CL programs, 46 <DD>defined, 43 <DD>display, 46 <DD>entering, 8 <DD>general structure, 51 <DD>information display, 48 <DD>keyword notation, 50-51 <DD>major groups, 45 <DD>Operational Assistant, 43 <DD>parameters, 46-47 <DD>positional notation, 51-52 <DD>question mark and, 48 <DD>redisplaying syntax for, 50 <DD>verb, list of, 46 <DD>See also specific commands </DL> <DD>CL (Control Language), 8 <DD>Cleanup, 134-136 <DL> <DD>customizing, 135 <DD>ending, 135 <DD>starting, 135-136 <DD>See also Backup plan </DL> <DD>Cleanup Tasks menu, 134-136 <DL> <DD>accessing, 134, 135 <DD>illustrated, 135 </DL> <DD>Client Access for OS/400 <DL> <DD>Client Access/400 for Windows option, 174 <DD>client/server programming, 188-189 <DD>data queues, 188 <DD>data transfer/file transfer, 183-187 <DD>defined, 173-174 <DD>Extended DOS option, 174 <DD>features, 177-178 <DD>install overview, 174-175 <DD>install overview on PC, 176 <DD>ODBC, 188 <DD>PCSMENU program and, 178 <DD>Personal Communications/400, 179-180 <DD>references, 189 <DD>RUMBA/400, 179 <DD>shared folders, 181-183 <DD>starting, 177 <DD>Startup icon, 177 <DD>Submit Remote Command, 188 <DD>terminal/printer emulation, 178-180 <DD>Virtual Printer, 188 <DD>See also PC Support/400 </DL> <DD>Client Access for Windows 95, 174 <DD>Client/server programming, 188-189 <DD>CLRLIB (Clear Library) command, 134 <DD>Comma Separated Variable (CSV) format, 184 <DD>CONFIG.PCS file, 176 <DD>Control Language. See CL commands; CL (Control Language) <DD>Controllers, 102 <DL> <DD>defined, 102 <DD>descriptions of, 102 <DD>relationship with lines and devices, 101 </DL> <DD>Create a DFU Program screen, 200-201 <DD>CRTDEVDKT (Create Device Diskette) command, 119-120 <DD>CRTDEVDSP (Create Device Description Display) command, 116-117 <DL> <DD>for display stations, 116-117 <DD>screens, 116, 117 </DL> <DD>CRTDEVPRT (Create Device Printer) command, 120 <DD>CRTDEVTAP (Create Device Tape) command, 119-120 <DD>CRTDFT (Create Default) command, 26 <DD>CRTSAVF (Create Save File) command, 140 <DD>Cumulative (CUM) PTFs <DL> <DD>applying, 151 <DD>defined, 144 <DD>loading, 148-149, 151 <DD>See also PTFs </DL> <DD>Customize Your System, Users, and Devices menu, 137 </DL> D <DL> <DD>DASD (direct access storage devices), 1, 140, 161 <DD>Data description specification (DDS), 192 <DD>Data File Utility (DFU), 192, 200-207 <DL> <DD>starting, 200 <DD>uses, 200 </DL> <DD>Data Interchange Format (DIF) format, 185 <DD>Data queues, 188 <DD>Data transfer, 183-187 <DD>DB2/400, 191 <DL> <DD>file access methods, 210 <DD>files, 192 </DL> <DD>Define Audit Control screen, 202-203 <DD>Define General Information/Indexed File screen, 201-202 <DD>Define the Query screen, 208 <DD>Device descriptions (*DEVD) <DL> <DD>categories of, 106 <DD>copying for display stations, 114-117 <DD>creating, 113-121 <DD>creating for display stations, 117-118 <DD>defined, 103 <DD>for diskette drives, 119-120 <DD>for displays, 106-108 <DD>for printers, 109-110, 120-121 <DD>for terminals, 106-108 <DD>troubleshooting, 118-119 <DD>working with, 106-107 <DD>See also Devices </DL> <DD>Device Status Task screen, 104-105 <DL> <DD>defined, 104 <DD>displaying, 108 <DD>illustrated, 105 </DL> <DD>Devices, 103-113 <DL> <DD>automatic configuration, 114 <DD>managing, 103 <DD>naming, 116-117 <DD>port number, 116 <DD>relationship with lines and controllers, 101 <DD>selecting, 115 <DD>status, 104 <DL> <DD>for diskette drives, 112-113 <DD>for printers, 108-109 <DD>for tap

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