基础设施云包括物理组件，物理组件上运行着应用程序和存储数据。
An infrastructure cloud includes the physical components that run applications and store data.
基础设施云：把应用从服务器抽象出来，把服务器从存储中抽象出来。
Infrastructure cloud: Abstracts applications from servers and servers from storage.
内容云实现了元数据和基础设施云的索引服务，可以提供对所有内容的抽象数据管理。
The content cloud implements metadata and indexing services over the infrastructure cloud to provide abstracted data management for all content.
网格提供基础设施，而云实际上提供应用程序和服务。
While grid provides the infrastructure, it's the cloud that actually provides the application and service.
云消费者无法控制基础设施和底层组件。
The cloud consumer cannot control the infrastructure and the underlying components.
当然，移植到云基础设施可能会改变攻击者的访问级别和动机，以及工作量和风险——这是在以后的工作中必须考虑的一个事实。
Of course, moving to a cloud infrastructure might change the attackers' access level and motivation, as well as the effort and risk - a fact that must be considered as future work.
企业正在发现，没了维护IT基础设施的负担，云计算允许它们专注于自己的核心业务。
Enterprises are finding that cloud computing allows them to focus on their core business without the burden of maintaining an it infrastructure.
本文的剩余部分主要关注IBM如何使您通过利用公共云基础设施交付高效的应用程序。
The remainder of this article focuses on how IBM enables you to deliver effective applications by utilizing a public cloud infrastructure.
每天似乎总有云基础设施的新零件安装到位，说服我们选择云的理由也更加充分。
Everyday it seems that there are more compelling reasons to leverage the cloud as new pieces of cloud Infrastructures fall into places.
在使用云计算时，客户常常并不拥有基础设施，而是租用基础设施。
With cloud computing, customers do not usually own the infrastructure; they rent it.
在我看来，对于学术界而言，最大的挑战是在大学环境中几乎不能建造云计算基础设施的情况下，如何鼓励学者做云计算领域中有趣而有意义的研究工作。
The big challenge, as I see it, is how to enable academics to do interesting and relevant work on the cloud when it's nearly impossible to build up the infrastructure in a university setting.
理论上这是依赖私有云基础设施最大的不利因素之一。
This is arguably one of the largest downsides of relying on a private cloud infrastructure.
动态、即时的发现和装配：虚拟化基础设施可以在服务器、私有和公共云之间灵活，甚至部分的移动。
Dynamic, just-in-time discovery and wiring: the virtualized infrastructure can be flexibly and even partially moved across servers, private and public clouds.
这样说来，从IBM购买基础设施来创建云，会是不个不错的选择。
Thus, buying IT infrastructures from IBM to create clouds might be a viable alternative.
基本上我认识的每位开发人员都在私有或公共云中使用或查看云基础设施。
Practically every developer I know is either using or looking at cloud infrastructure in either private or public clouds, "he said."
定义了云的基础架构后，就可以开始探究如何应用开源技术来构建一个动态的云基础设施了。
With the basic architecture of a cloud defined, let's now explore where open source is being applied to build out a dynamic cloud infrastructure.
现今大部分云计算基础设施都能提供可靠的服务，这些服务通过由基于计算和存储虚拟化技术的下一代数据中心交付。
The majority of cloud computing infrastructure currently consists of reliable services delivered through next-generation data centers that are built on compute and storage virtualization technologies.
许多小公司正在把它们的基础设施转移到云计算环境中，以此简化管理。
Many small companies are taking advantage of the simplicity provided by moving their infrastructure into a cloud computing environment.
因此，关键是要识别满足计算机和用户预期需求所需的云基础设施的最佳数量。
Therefore, it is critical to identify the optimal amount of cloud infrastructure required to meet the anticipated needs of customers and users.
例如，可以使用云基础设施评估并测试多种可能的配置，这是在物理系统上难以做到的。
For example, multiple possible configurations can be evaluated and tested using a cloud infrastructure rather than physical systems.
从高层架构来看，云可以使用网格(底层基础设施)，但是反过来不行。
Looking at the bigger picture, clouds can utilize grids (the underlying infrastructure), but not the reverse.
企业需要云计算作为基础设施的原因就是价格，这是谁都不能回避的。
Businesses want the clouded infrastructure because of pricing. You can't beat that.
基础设施是整个云计算概念的主干。
Infrastructure is known as the backbone of the entire cloud computing concept.
IBM的公有云基础设施及移植服务将在2012年首先提供美国使用。
The IBM public Cloud infrastructure as well as a migration services will be first available in the US in 2012.
云计算通过对基础设施、平台和应用程序的可消费服务增强了业务的灵活性。
Cloud computing enhances business agility through consumable services for infrastructures, platforms, and applications.
这种攻击对云基础设施很难奏效。
最后，本文侧重介绍了云计算的主干，即云计算的基础设施。
Then the article ends by focusing on the backbone of cloud computing, which is known as the infrastructure of cloud computing.
还希望随时关注经济有效的新对策和云基础设施技术。
You also want to keep your eye out for new countermeasures and cloud infrastructure technologies that bring more benefits than they cost.
公有云：本地没有物理基础设施，所有从外部访问数据和应用程序。
Public cloud: No physical infrastructure locally, all access to data and applications is external.
运营层，保护基本的云计算基础设施。
Operational Layer containing the basic cloud computing infrastructure.
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