使用IBM DB2数据库安装Rational Insight V1.0.1.1
当您准备在大型企业中部署 IBM Rational Insight 性能管理软件时，需要考虑针对多种异构数据源运行数据密集型报告的性能需求。关键是要通过战略性地将组件分布在不同的机器上，充分利用可用计算资源的分工和专业化。
本文将介绍一些可用的灵活选项，并引导您在使用 IBM DB2 和 IBM WebSphere Application Server 的企业级可扩展分布式拓扑中安装 Rational Insight V1.0.1.1。
IBM® Rational® Insight 性能管理软件帮助决策者更好地监视对其组织至关重要的软件开发项目，从而更好地治理项目。它通过提供来自信息源组合的开发智能来实现这一点。它还为大型企业部署 Rational Insight 提供了灵活的选项，这些企业需要运行拥有大量聚合数据的信息密集型报告。本文将引导您完成在使用 IBM® DB2® V9.7 和 IBM® WebSphere® Application Server 7.0 的企业级可扩展拓扑中安装 Rational Insight V1.0.1.1 的关键步骤。
企业部署架构的考虑因素
无论您的企业是什么规模，组织中的 Rational Insight 用户都需要能够快速运行、反应灵敏的报告和仪表板。
典型的使用考虑因素
为了满足他们的需求，请务必在您的部署计划中考虑以下内容：
- 您预期使用 Rational Insight 的并发用户的平均（和最大）数量。请考虑您用户社区中的任何预期增长率。
- 典型报告将需要的数据量。
- 用户报告将需要从中提取信息的数据源多样性和异构性。
组件安装的考虑因素
Rational Insight 提供在分布式拓扑中安装和部署多种组件的选项。这样做，部署架构师或工程师可以充分利用可用计算资源的分工和专业化来处理这些考虑因素。
您可以将三种组件部署到不同的机器上：
- 数据（它包括数据仓库和内容存储数据库）
- 提取、转换和加载 (ETL) 服务器
- 报告服务器
在决定如何安装这些组件时请考虑所有以下因素：
- 如果您预期组织将为报告存储大量数据，请衡量在一个单独的机器上安装数据服务器的选项。
- 如果您预期有频繁调度的作业和请求要从多个存储提取大量数据，请考虑在专用机器上部署 ETL 服务器。
- 最后，如果您认为将有大量并发用户发出报告请求，请将报告服务器安装在一个单独的机器上。
本文假设所有这三种情况都是需要考虑的因素，所以您要将所有三个组件都安装在不同的机器上。
Rational Insight 企业部署架构
最终用户报告的作者可以将一些 Rational Insight 客户端软件包分别安装到他们的桌面，以设计、生成和调度报告。（注：本文对实现 Rational Insight 报告制作功能的客户端软件包不提供详细的安装步骤描述。）
图 1. 企业 Rational Insight 部署拓扑
图 1 概述您将创建的整体企业部署拓扑，每个 Rational Insight 关键组件分别使用一个单独的物理机器：数据服务器、ETL 服务器和报告服务器。
您可以从图 1 中了解几个重要事项：
- 在该架构中的每台计算机都使用 64 位操作系统；然而，Rational Insight v1.0.1.1 只能在 32 位模式下运行。Rational Insight 的所有先决条件（例如，DB2 和 WebSphere Application Server）都需要安装 32 位版本。
- 报告服务器需要一个永久许可，该许可被安装在 IBM Rational License Key server v8.1.1（或更高版本）中，并需要从该服务器进行访问。您可以在远离 Rational Insight 服务器的机器上安装 Rational License Key 服务器，如图 1 所示。我们不再进一步讨论如何安装和使用 Rational Insight 所要求的许可。
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