云计算：建立云需要什么
设置云需要什么？ 我有一些中东的朋友想要设置类似于谷歌和亚马逊的云，并且想知道是否有任何开放技术可以用来设置云托管服务。 有任何想法吗？
What does it take to setup a cloud. I have some friends in the middle east who want to setup clouds similar to Google and Amazon and are wondering if there is any open technology that they can use to setup a cloud hosting service. Any ideas?
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以下是一些开源云服务器：
These are a few open source cloud servers:
您应该查看桉树。 Eucalyptus 的目标是允许您建立自己的私有云，类似于 Amazon 的 EC2。
You should check out Eucalyptus. The goal of Eucalyptus is to allow you to setup your own private cloud, similar to Amazon's EC2.
软件很重要，没有任何公开可用的软件可以复制您在谷歌、微软或亚马逊中找到的软件。 微软关于其基础设施的文章最多。 AutoPilot 和 云成本是两篇有趣的论文。 真正的成本部分将用于数据中心的设计和建设。 所需的计算机数量并非微不足道。 需要明确的是，我不认为由 5000 台机器组成的单个集群是云。 许多 5000 台机器的集群就是一个云。 此外，云应该能够适应数据中心故障，因此可能至少应该有两个数据中心。
除了地理位置之外，他们还有什么理由想要拥有自己的地理位置而不使用 EC2 或 Azure？
Software is important and there is nothing available publicly that replicates what you might find in Google, Microsoft or Amazon. Microsoft has written the most about their infrastructure. AutoPilot and Cost of Clouds being two interesting papers. A real segment of the cost will be in data center design and construction. The number of computers needed is non trivial. To be clear I don't think that a single cluster of 5000 machines is a cloud. Many clusters of 5000 machines is a cloud. Also clouds should be resilient to data center failure so there should probably be at least two data centers.
Other than geo-location is there any reason they want to have their own and not use either EC2 or Azure?
最近VMWare 发布了Cloud Foundry。 Cloud Foundry 既是一个商业产品，也是一个开源项目。 cloudfoundry.com 是商业服务的网站商。 该开源项目位于 cloudfoundry.org，源代码位于 github。
到目前为止，我所看到的情况表明，cloudfoundry 开发的云软件以及相应的服务更像是 PaaS 提供的服务优于IaaS。 鉴于 VMWare 的核心优势是虚拟化，这可能显得令人惊讶。
根据您的要求，您可以通过将 Cloud Foundry 的 OSS 与其他开源 IaaS 软件（例如 Eucalyptus 相结合）来构建整个云解决方案制作您自己的完整堆栈。
Recently VMWare announced Cloud Foundry. Cloud Foundry is both a commercial product and open source project. cloudfoundry.com is the websiter of the commercial service. The open-source project is homed at cloudfoundry.org, source code is on github.
So far what I have seen, suggests that the cloud software, and consequently the service, being developed by cloudfoundry is more of a PaaS offering than IaaS. This might appear surprising given the fact that VMWare's core strength is virtualization.
For your requirement you can probably build the whole cloud solution by combining cloud foundry's OSS with other open source IaaS software like Eucalyptus to make your own complete stack.
“云”是一个经常被误解的术语。
任何在互联网上执行任何工作的计算机都可以称为云。 这只是“在其他地方”完成的计算机工作的比喻。
也许您指的是分布式计算？
"Cloud" is an often misunderstood term.
Any computer doing any work on the internet qualifies as cloud. It's simply a metaphor for computer work done "somewhere else".
Perhaps you meant distributed computing?
Rackspace 的解决方案集在 OpenStack 上运行。
Rackspace's solution set is running on OpenStack.