在我的上一篇文章中^{(last article)}，我试图向您简要介绍云^(Cloud)和云^(Cloud)计算的概念现在让我们了解一下，云^(Clouds)的类型是什么。我们基本上有三种云^(Clouds)，即公共云^{(Public Clouds)}、私有云^{(Private Clouds)}和混合云^{(Hybrid Clouds)}。

云计算的类型

1]公共云

这些是向公众开放使用的云，它们存在于组织的防火墙之外，由谷歌^(Google)、亚马逊^(Amazon)、微软^(Microsoft)等供应商完全托管和管理。它们严格遵循“即用即付^(Pay)”模式，该模式帮助初创公司从小做大，而无需在 IT 基础架构上进行大量投资。

在这里，用户无法控制资源的管理。一切都由第三方管理，他们有责任应用软件更新、安全补丁等。

尽管它们非常有效并减轻了组织的工作量，因为一切都已经存在，但它确实面临一些批评，尤其是在与安全相关的问题上。

2]私有云

这些是存在于组织边界（防火墙）内的云类型。它完全由企业管理，具有公有云^{(Public Clouds)}的所有功能，主要区别在于它必须处理底层 IT 基础设施。它们更安全，因为它们是组织内部的，并且它们会根据业务需求调整资源。

它们最适合与严格的安全性相关并遵循一些严格的政策或用于监管目的的应用程序。由于其复杂性和管理性，组织使用私有云^{(Private Cloud)}并不是一件容易的事，因此它们通常被那些对其 IT 基础设施进行了大量投资并具有管理它的人力和能力的企业使用。

3] 混合云

它们由外部和内部提供商组成，即公共云和私有云的混合。安全^(Secure)和关键的应用程序由组织管理，不那么关键和安全的应用程序由第三方供应商管理。它们具有独特的身份，受标准技术的约束，从而实现了数据和应用程序的可移植性。它们用于云爆发等情况。^{(Cloud Bursting.)}

在大多数国家/地区，我们将在未来十年看到对混合云^{(Hybrid Clouds)}的大量投资，原因很简单，很多公司对云的安全^(Security)性持怀疑态度，他们更愿意自己管理关键数据，由外部提供商提供的非关键数据。

从最终用户的角度来看，公共云^{(Public Clouds)}对他们来说会更有趣，我们都使用公共云服务，如Microsoft Office Web Apps、Google Docs等；而企业将对私有云和混合云感兴趣。我会建议他们为此检查Microsoft Exchange online、Share Point online 等。

Types of Clouds Computing

In my last article, I tried to briefly introduce you to the concept of Cloud and Cloud computing Now let us understand, what are the types of Clouds. We basically have three types of Clouds, namely, Public Clouds, Private Clouds, and Hybrid Clouds.

1] Public Clouds

These are the clouds that are open for use by the general public and they exist beyond the firewall of an organization, fully hosted and managed by vendors like Google, Amazon, Microsoft, etc. They strictly follow the “Pay as you go” model which helps startups to start small and go big without investing much in the IT infrastructure.

Here a user does not have control over the management of the resources. Everything is managed by the third party and it’s their responsibility to apply software updates, security patches, etc.

Though they are quite effective and eases an organization’s effort since everything is already there, it does face some criticism, esp on security-related issues.

2] Private Clouds

These are the types of clouds that exist within the boundaries (firewall) of an organization. It is totally managed by an enterprise and has all the features of Public Clouds with a major difference that it has to take care of the underlying IT infrastructure. They are more secure as they are internal to an organization and they shuffle resources according to their business needs.

They are best suited for the applications which are related to tight security and follow some stringent policies or are meant for regulatory purposes. It is not very easy for an organization to go with a Private Cloud due to its complexity and management so they are often used by enterprises who have made huge investments in their IT infrastructure and have the manpower and abilities to manage it.

3] Hybrid Clouds

They consist of external and internal providers, viz a mix of public and private clouds. Secure & critical apps are managed by an organization and the not-so-critical & secure apps by the third-party vendor. They have a unique identity, bound by standard technology, thus enabling data and application portability. They are used in situations like Cloud Bursting.

In most countries, we are going to see a lot of investment in the Hybrid Clouds in the next decade, for the simple reason, that lot of companies are skeptical about the Cloud’s Security and they prefer that the critical data be managed by themselves and the non-critical data by the external provider.

From an end-user perspective, Public Clouds will be more interesting for them, we all use public cloud services like Microsoft Office Web Apps, Google Docs, etc; whereas an enterprise will be having an interest in private & hybrid clouds. I will suggest they check Microsoft Exchange online, Share Point online, etc for this.

琳吴

About the author

我是一名全职软件工程师，在使用 Windows 和 Mac 软件方面拥有超过 10 年的经验。我知道如何在两个平台上设计、测试和部署应用程序。我也有安全和系统管理方面的经验。我的技能和知识可以帮助您构建更好、更高效的计算机系统。

云计算的类型

云计算的类型

1]公共云

2]私有云

3] 混合云

Types of Clouds Computing