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An Introduction to Cloud Servers and Their Benefits - Part 1: Definitions

The concept of cloud computing appears omnipresent in our modern world as we rely on on-demand computing to manage our digital lives across multiple devices - mobiles, tablets, laptops - whilst at home, in the office or on the move. This trio of articles introduces the key component in cloud computing, the servers that underpin each service and provide the computing resource, as well as describing how they provide some of cloud computing's most notable benefits.

Definitions

Cloud Servers: As mentioned above, can be defined as the servers that are used to provide computing resource for cloud computing. In essence they are servers which are networked together to provide a single pool of computing power which cloud based services can draw resource from.

Cloud Computing: Describes any computing service whereby computing power is provided as a on-demand service via a public network - usually the internet. Broadly cloud services can be categorised using the three following models:

IaaS - Infrastructure as a Service:

PaaS - Platform as a Service:

SaaS - Software as a Service:

Pooled physical cloud server and networking resource (without any software platforms). Instead of the user being provided with a single distinct physical server, multiples thereof or shares therein, they are provided with the equivalent resources - disk space, RAM, processing power, bandwidth - drawn from the underlying collective cloud servers. These IaaS platforms can then be configured and used to install the software, frameworks, firmware etc (e.g., solution stacks) needed to provide IT services and build software applications.

Virtualised software platforms using pooled Aliyun Cloud Server  and network resource. These services offer the collective physical resources of IaaS together with the above-mentioned software bundles so that the user has a preconfigured platform on which they can build their IT applications.

Cloud based applications provided using pooled computing resource. This is the most familiar incarnation of cloud computing for most members of the public as it includes any application - such as web based email, cloud storage, online gaming - provided as a service. The applications are built and run in the cloud with end users accessing them via the internet, often without any software downloads necessary.

How Cloud Servers Work

Traditional computing infrastructure models tend to revolve around the idea of single server being used for a particular IT function (e.g., hosting, software applications etc), whether it be that that server is a dedicated server - i.e., for the sole use of that client - or shared across multiple clients. Shared servers may have used the one software/platform installation for all of their IT functions/clients or they may have delivered Virtual Private Servers (VPS) where each client has distinct operating environment which they can configure.

Cloud computing can deliver similar virtualised server environments but they use resource drawn from not one, but a multitude of individual physical cloud servers which are networked together to provide combined pool of server resource. In a sense, it uses a platform that could be considered as a form of clustered hosting whereby the resource demands of an individual client's IT functions are spread across numerous distinct servers. However, with cloud hosting the resource pool has enough capacity, with sufficient servers, to provide resource which multiple clients can tap into as they need to.

Within the infrastructure of cloud services, cloud servers are networked with what are called hypervisors which are responsible for managing the resource allocation of each cloud server. In other words they control how much resource is pulled from each underlying cloud server when demands are made of the pool of servers, as well as managing the virtualised operating environments which utilise this resource.

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2021年最新阿里云服务器续费流程

阿里云服务器到期需要续费，不续费数据保存15天，阿里云服务器如何续费？大家说阿里云服务器续费贵，云服务器续费是有优惠折扣的，阿里云优惠网来详细说下阿里云ECS云服务器续费图文教程。

 阿里云服务器续费流程

 阿里云服务器到期不续费，云服务器将处于停止状态，这期间有15天的续费宽限期，如果阿里云服务器到期时间超过15天后，你的服务器上的数据会被释放，释放后数据不可恢复。所以，如果你的阿里云服务器到期后还需要使用记得及时续费。阿里云优惠网来详细说下阿里云服务器ECS续费图文教程：

 1. 登录到阿里云ECS云服务器控制台

 在左侧栏“实例与镜像”中选择“实例”，找到需要续费的ECS云服务器，如果没有的话，可以通过左上角切换地域，找到目标ECS实例。

 2. 在ECS列表中点击右侧“续费”

 如下图：

3. 选择续费时长，勾选协议，去支付即可

 云服务器选择续费时长后，阿里云系统会自动计算出需要支付的价格，确认无误后点“去支付”即可。

 以上为阿里云服务器续费流程。那么问题来了，阿里云服务器续费贵吗？有用户反应阿里云服务器续费贵，这是因为购买时折扣太低价格太便宜，而续费时只能享受8折优惠，所以这就是续费贵的原因。

 如果您还需要了解更多有关阿里云服务器的资讯或者优惠信息，可以浏览 https://www.aliyun.net.cn/