The word "cloud", I believe everyone is familiar with it, and it will often appear in our lives, such as cloud payment, cloud disk, Ali cloud, and Baidu cloud. So what exactly is a cloud service? Today I will give you a brief talk.
What is cloud service
Cloud services are an increase, use, and delivery model of Internet-based related services, which usually involve the provision of dynamic, easily scalable and often virtualized resources through the Internet. Cloud is a metaphor for the network and the Internet. In the past, the cloud was often used to represent the telecommunication network in the figure, and later it was also used to represent the abstraction of the Internet and the underlying infrastructure.
Cloud services refer to obtaining the required services through the network in an on-demand and easily scalable manner. This service can be related to IT and software, the Internet, or other services. It means that computing power can also be circulated through the Internet as a commodity.
Currently commonly used cloud services are: public cloud, private cloud, and hybrid cloud.
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Public cloud:
Public Cloud is the most basic service with low cost. It means that multiple customers can share the system resources of a service provider. They can enjoy professional IT services without setting up any equipment and equipping management personnel. For ordinary entrepreneurs and SMEs, it is undoubtedly a good way to reduce costs.
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Private Cloud:
Private Clouds (Private Clouds) are built for individual use by a customer, thus providing the most effective control over data, security and service quality. The company owns the infrastructure and can control how applications are deployed on this infrastructure. Private clouds can be deployed in the firewall of an enterprise data center, or they can be deployed in a secure hosting location. The core attribute of private clouds is proprietary resources.
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Hybrid cloud:
Hybrid cloud (hybrid) integrates public cloud and private cloud, and is the main model and development direction of cloud computing in recent years. We already know that private clouds are mainly for enterprise users. For security reasons, enterprises are more willing to store data in private clouds, but at the same time they hope to obtain computing resources from public clouds. In this case, hybrid clouds are becoming more and more popular. With more adoption, it mixes and matches public clouds and private clouds to obtain the best results. This personalized solution achieves the goal of saving money and security.
Who is the cloud service for
What kind of users are cloud servers 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.
Features of cloud services
By distributing computing on a large number of distributed computers instead of local computers or remote servers, the operation of the enterprise data center will be more similar to the Internet. This enables companies to switch resources to the applications they need, and access computers and storage systems as needed.
It is like changing from the old single generator mode to the centralized power supply mode of the power plant. It means that computing power can also be circulated as a commodity, just like gas, water and electricity, which is easy to access and inexpensive. The biggest difference is that it is transmitted over the Internet.
Cloud service application
- Cloud IoT
"The Internet of Things is the Internet of Things Connected". This has two meanings: first, the core and foundation of the Internet of Things is still the Internet, which is an extended and expanded network based on the Internet; second, its user end extends and extends to any item and item to carry out information Exchange and communication.
As the business volume of the Internet of Things increases, the demand for data storage and calculations will bring requirements for "cloud computing" capabilities:
1. Cloud computing: From the computing center to the data center in the initial stage of the Internet of Things, PoP can meet the needs;
2. In the advanced stage of the Internet of Things, MVNO/MMO operators (which have existed for many years abroad) may appear, requiring the combination of virtualized cloud computing technology, SOA and other technologies to achieve Internet ubiquitous services: TaaS (everyTHING As A Service).
- Cloud security
Cloud Security is a new term that has evolved from "cloud computing". The strategic concept of cloud security is: the more users, the safer each user, because such a large user group is enough to cover every corner of the Internet, as long as a certain website is linked to a horse or a new Trojan virus appears, Will be intercepted immediately.
"Cloud Security" monitors abnormal software behaviors in the network through a large number of meshed clients, obtains the latest information of Trojan horses and malicious programs in the Internet, pushes it to the server side for automatic analysis and processing, and then distributes the virus and Trojan horse solutions To every client.
- Cloud storage
Cloud storage is a new concept extended and developed from the concept of cloud computing. It refers to the collection of a large number of different types of storage devices in the network through application software through cluster applications, grid technology or distributed file systems. Work together to provide a system of data storage and business access functions. When the core of cloud computing system operation and processing is the storage and management of large amounts of data, a large number of storage devices need to be configured in the cloud computing system, then the cloud computing system is transformed into a cloud storage system, so cloud storage is a data storage system. And management as the core cloud computing system.
Advantages of cloud services
1. Improve system availability and application service quality
Cloud computing-based operation and maintenance services rely on a variety of monitoring, alarm, log, and report service tools. Through comprehensive network monitoring, faults can be found early, proactively prevented and mitigated in advance without having to wait for problems to occur, thereby significantly improving system availability and end users Perceived quality of service.
2. Significantly reduce operation and operation and maintenance costs
Cloud computing operation and maintenance services centralize data and even applications to the cloud. The resource elasticity of cloud computing and the characteristics of charging according to use can significantly reduce the operating cost of the system; in addition, for operation and maintenance, this means that a large amount of local operation and maintenance work is transferred to the cloud server side, and the overall operation and maintenance work The amount is greatly reduced, and the operation and maintenance cost is also greatly reduced.
3. Fast failure recovery and rapid matching of business changes
In the cloud service mode, system failures can be detected in time, and services can be quickly restored in a very short time through system copies and snapshots, which will hardly affect business development; when the number of business users and business development areas are large When it changes, it can dynamically increase system resources and optimize service delivery based on changes in traffic, so that the business system can match the requirements of business development in time.
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