云实施程序重点是迁移计划的核心 ID:58.83.141
如今，云迁移的第一波浪潮(Cloud 1.0)即将结束，关键性较低的应用程序将转移到北京电信服务器供应商。而下一波浪潮的推动要困难得多，这就是组织希望迁移运营其业务的应用程序以获得竞争优势的地方。调研机构Gartner公司基础设施团队管理副总裁兼研究主管David J. Cappuccio表示，到2025年，80%的企业将关闭他们的传统数据中心，而目前只有10%。这一预测可能会实现，也可能不会实现，但数据中心工作人员现在发现，他们没有所需的服务器集群知识或技能，无法确保从内部部署到基于服务器集群的应用程序的平稳过渡。
人们经常提到的服务器集群2.0或基础设施即服务(IaaS)在处理应用58.83.141.74程序性能时需要更多的规划，而不仅仅是可用性。目前有两种不同的方法：一是“提升和转移”，其中现有应用程序以最小的变化迁移到新的基础设施;二是“云原生”，从而为服务器集群重写应用程序，或者使用服务器集群服务提供商资源来完成此操作。大多数业务关键型应用程序都是由可追溯到多年的代码组成的，因此重新编写不是一件容易的事。这些应用程序还依赖于访问其他应用程序和资源，因此在考虑迁移之前，必须充分了解本地托管的应用程序。本文重点介绍提升和转移。
企业将业务迁移到云端的主要驱动因素是降低基础设施支出和人员成本，同时实现业务灵活性和可扩展性。硬件、地板空间、冷却和安全等物理基础设施可由第三方拥有和管理，其共享托管方法应意味着降低成本。那么为什么情况并非总是如此呢?主要原因是缺乏计划。如果决定在托管站点上复制本地环境，那么成本将类似于当前的成本。云迁移的规划过程应该包括这样一个问题：“在云中运行应用程序需要多少成本?这可能会面临更多的问题，因为为了知道服务器集群提供商需要什么样的服务，必须先了解应用程序现在的运行情况。这与“服务器、结构、存储现在如何运行”的问题截然不同。因为这样做的重点是如何始终管理基础设施。
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