云计算先掌握什么技术(云计算需要掌握哪些技术)

The technological evolution sequence of cloud computing: public cloud, private cloud, enterprise version, agile version, hybrid cloud.

1. Public cloud

Public cloud is the earliest form of cloud computing, and it is also the ultimate form that many cloud vendors hope to achieve so far. It starts from the elastic computing shared resource rental service of. Generally, public cloud is a cloud computing model in which users or customers connect to a third-party platform that provides public computing, storage, network, security, data, and application sharing services through the Internet, and enjoy shared resource services.

2. Private cloud

Compared with public cloud, people tried private cloud earlier, but at that time it was not called private cloud, but Take another form - virtualization. In the early enterprise IT architecture, in order to better save resources and avoid the waste caused by exclusive use of hardware resources, virtualization technology emerged to virtualize hardware resources to achieve resource isolation, scalability, and relatively high security attributes.

3. Enterprise Edition

The private cloud enterprise version has almost the same product capabilities as the public cloud, but the scale is different. It has the same cloud operating system, rich IaaS and PaaS products, provides external services in the form of OpenAPI and SDK, configures disaster recovery, operation and maintenance management, security management and other management functions for the private cloud, and manages it through a unified management portal , this product form is suitable for the needs of enterprises or institutions that want to build a complete cloud of their own.

4. Agile Edition

Different from the Enterprise Edition, the Agile Edition focuses on specific product usage scenarios or industry scenarios, such as focusing on experts in the field of artificial intelligence. There are cloud versions and proprietary cloud versions focusing on Internet architecture. The agile version focuses on solving the problem of the minimum deployment scale of private cloud, which is an order of magnitude smaller than the enterprise version. The Agile Edition supports upgrading to the Enterprise Edition.

5. Hybrid cloud

First there was public cloud, and then private cloud appeared, but this is not the end. More and more enterprises are integrating Not satisfied with a single public cloud or a single private cloud form, many large enterprise customers who expect to use private clouds also expect more flexible and lower-cost applications in Internet scenarios.

For example, for e-commerce, CRM and other platforms, on the one hand, some applications have strong peak/trough characteristics; on the other hand, these applications are oriented to customers on the Internet, so they are built on Private cloud is not the best choice. On public cloud, you can have more flexible elastic scalability, richer products and lower usage costs. Therefore, unified product usage specifications and product versions of public cloud + private cloud have emerged. and standard hybrid cloud requirements.

Cloud computing systems use programming models, data management technology, data storage technology, virtualization and other technologies. When learning cloud computing, you must not only understand the above technologies, but also learn the following courses:

1. The first thing you need for cloud computing is to learn its system foundation. Mainly includes Linux system management, database management, KVM management and the establishment of cloud computing environment.

2. Secondly, you need to learn Linux network management, database synchronization, hKVM migration and remote management, cloud computing and image management.

3. Finally, you need to learn database clusters, KVM virtual machine embedding, cloud computing storage management, Docker practice and cloud computing data management. In addition, Linux storage management and cloud computing network management are also indispensable courses.

The architecture of the cloud computing platform consists of user interface, service catalog, management system, deployment tools, monitoring and server clusters:

(1) User interface. It is mainly used for cloud users to transfer information and is the interface for interaction between the two parties.

(2) Service directory. As the name suggests, it provides a list of user choices.

(3) Management system. It refers to mainly managing resources with high application value.

(4) Deployment tools. Able to effectively deploy and match resources according to user requests.

(5) Monitoring. Mainly manage and control resources on the cloud system and formulate measures.

(6) Server cluster. Server clusters include virtual servers and physical servers, which are subordinate to the management system.

Core technologies of cloud computing

1. Many technologies are used in cloud computing systems, including programming models, data management technology, Data storage technology, virtualization technology, and cloud computing platform management technology are more critical.

2. The core technologies of cloud computing include: virtualization, distributed file system, distributed database, resource management technology, energy consumption management technology, information security, etc. Virtualization is one of the most important core technologies of cloud computing. It provides infrastructure-level support for cloud computing services and is the main driving force for ICT services to rapidly move toward cloud computing.

3. The core technologies of cloud computing include virtualization, distributed file systems, distributed databases, resource management technology, energy consumption management technology, information security, etc.

4. Virtualization technology Virtualization is one of the most important core technologies of cloud computing. It provides infrastructure-level support for cloud computing services and is the main driving force for ICT services to rapidly move toward cloud computing. It can be said that without virtualization technology, there would be no implementation and success of cloud computing services.

5. The core idea of ​​cloud computing is to uniformly manage and schedule a large number of computing resources connected by the network to form a computing resource pool to provide on-demand services to users. "Cloud" is a network that provides resources.

What technologies are there in cloud computing?

1. The key technologies of Google cloud computing mainly include: Google file system GFS, distributed computing programming model MapReduce, distributed lock service Chubby and distributed structure Globalized data storage system BigTable, etc.

2. As of 2018, the main application technologies of cloud computing are as follows: Cloud security is a new term evolved from "cloud computing".

3. Resource management technology. Cloud computing requires the processing and analysis of distributed and massive data. Therefore, data management technology must be able to efficiently manage large amounts of data. The platform management technology of cloud computing systems requires the ability to efficiently allocate a large number of server resources so that they can work better together. Energy management technology.

4. The key technologies of cloud computing mainly include data storage technology, data management technology and programming model.

What are the core technologies of cloud computing?

The core technologies of cloud computing include virtualization, distributed file system, distributed database, resource management technology, energy consumption management technology, information security, etc.

The core technology of cloud computing system: parallel computing. Parallel Computing refers to the process of using multiple computing resources to solve computing problems at the same time. It is an effective means to improve the computing speed and processing power of computer systems.

For example, if you plan to work in the field of big data and nosql, you need to master Hadoop, Hbase, Cassandra and some theories (CAP, Base, etc.); if you want to work on cloud platforms (Iaas, Paas) , you can study virtualization technology (kvm, hyper-v, etc.), OpenStack, esxi and other technologies.

What are the key technologies of cloud computing? What are their respective functions?

The key technologies of cloud computing mainly include data storage technology, data management technology and programming model.

Resource management technology. Cloud computing requires the processing and analysis of distributed and massive data. Therefore, data management technology must be able to efficiently manage large amounts of data. The platform management technology of cloud computing systems requires the ability to efficiently allocate a large number of server resources so that they can work better together. Energy management technology.

The key technologies of cloud computing include the following directions: Virtual machine technology Virtual machine, that is, server virtualization, is an important cornerstone of the underlying architecture of cloud computing.

The core technologies of cloud computing include virtualization, distributed file systems, distributed databases, resource management technology, energy consumption management technology, information security, etc.

Function: Relatively simple cloud computing technology has been widely used in today's Internet services. The most common ones are online search engines and web mailboxes. Search engine At any time, as long as you use a mobile terminal, you can search for any resources you want on the search engine, and share data resources through the cloud.

The key technologies of CloudComputing are: FO software development method. This is a software development method that is further abstracted on top of "object-oriented". Its purpose is to solve the more serious software crisis problem faced by CloudComputing software system.