Cloud server (Elastic Compute Service, ECS) is a simple, efficient, safe and reliable computing service with elastically scalable processing capabilities. Its management method is simpler and more efficient than physical servers.
Compared with traditional servers, cloud servers have many advantages. This is also the main reason for the rapid development of cloud servers. A large number of users migrate their website data and various information to the cloud, mainly to enjoy the convenience of cloud servers.
The advantage of cloud server is to realize exclusive and flexible expansion of host facilities. The biggest direct difference from traditional servers is that they are more flexible, have strong scalability, and are relatively advantageous in terms of cost investment.
For enterprises, it is impossible to completely match the stored data with the purchase or server rental. The computing power of the server will always be redundant. Even if it is just enough, in order to deal with emergencies, the server must be redundant. More. Cloud computing services can increase or decrease server resources at any time, allowing enterprises to enjoy Internet servers more economically.
Here are the differences between cloud servers and traditional servers from 7 aspects:
1. In terms of security: Cloud servers have natural anti-ARP attacks and MAC spoofing, snapshot backups, and data will never be lost. The standalone server does not have this function;
2. From a technical perspective: cloud servers use cloud computing technology, and cloud computing technology integrates various software and hardware technologies such as computing, network, and storage. A stand-alone server is independent and will not integrate these resources.
3. In terms of reliability: cloud servers are based on server clusters, so the hardware redundancy is high, and the failure rate is low; while independent servers have relatively less hardware redundancy and high failure rate;
4. From a performance point of view: the cloud server is 4 times the computing power of an independent server with the same configuration, which can meet the requirements of high-performance computing;
5. From the perspective of energy saving, the cloud server is based on the automatic migration technology of cloud computing, which means that the utilization rate of the physical server is not high at night. The automatic migration technology will concentrate the application on several physical servers, and other physical servers can sleep This saves energy.
6. In terms of flexibility: users can add their own configurations online and in real time, with a large expansion space; independent servers have limitations in this regard. If there are new applications, they can only buy another one.
7. From the standpoint of stability, cloud servers can be automatically migrated during failures, meaning that if a cloud server fails, the applications on it will be automatically migrated to other cloud servers. This function does not exist in a standalone server, and it is down when it is down.
In addition, what is the difference between cloud server and
virtual host? It can be simply understood as the following:
1. In terms of resources: cloud service is an exclusive resource, with independent CPU, memory, hard disk and ip, etc.; virtual host is the resource of a physical server shared by many website spaces.
2. Access speed: Generally, the access speed of cloud server is faster than virtual host, but it is not absolute. It also depends on the specific hardware configuration, local broadband speed, and website page size.
3. How much is the cost: Virtual hosting is low in cost because multiple spaces share the bandwidth and IP of a server, and the price is cheaper than cloud servers.
4. Management operation: The cloud server can log in remotely, there is a centralized remote management platform, and the environment can be configured by yourself; the virtual host environment is configured by the merchant, and users cannot change or configure the website environment by themselves.
5. Security and stability: The cloud server is based on the cloud computing architecture and can automatically switch the failed node to the normal host with strong stability.
6. Suitable for the crowd: The virtual host management is simple, suitable for beginners to build a website; the cloud server resources can be elastically scaled, suitable for fast-developing enterprises or webmasters who know certain technologies.
Summary: Cloud server is a simple, efficient, safe and reliable computing service with elastically scalable processing capabilities. Its management method is simpler and more efficient than physical servers. Users can quickly create or release any number of cloud servers without purchasing hardware in advance. It can help you quickly build more stable and secure applications, reduce the difficulty of development, operation and maintenance and overall IT costs, and enable you to focus more on core business innovation.
Cloud servers are suitable for users who pay attention to the cost-effectiveness of host services; users who need to quickly implement distributed deployment; users who need flexible business expansion capabilities; users who need high system availability and rapid recovery; users who want to manage the system easily. Supports Internet applications such as e-commerce, forums, SNS, corporate websites, and OA systems.
