Shulou(Shulou.com)06/02 Report--

This time we are going to learn the concept of cloud computing. Cloud computing is a pay-per-use model that provides available, convenient and on-demand network access and access to a pool of configurable computing resources (including networks, servers, storage, applications, services). In short, cloud computing allows users to use shared resources as needed.

The classification of cloud computing according to the service model includes infrastructure as a service (iaas), platform as a service (paas), and software as a service (saas).

Partners may ask, what are public, private, and hybrid clouds that you often hear about? Don't worry, we'll talk about it.

According to the resource ownership object of cloud computing, it can be divided into two categories: public cloud and private cloud.

Public cloud (public cloud) is a service that provides computing resources to the public. Generally used through the Internet, the cost is low, and the core attribute of the public cloud is shared resource services. The advantages of public clouds are low cost and good scalability. The disadvantage is that users lack control over cloud resources, data security, network performance and matching.

Private clouds are built for individual customers who own the infrastructure and control how applications are deployed on it. Users can deploy private clouds in enterprise data center firewalls or secure managed sites. The core attribute of a private cloud is proprietary resources.

Hybrid cloud is not a separate concept. It is a hybrid cloud service model that combines public and private clouds through standardized means or proprietary technologies. In short, a hybrid cloud is a cloud service model, with both public and private clouds.

According to Yunrong Technology, compared with public cloud, the biggest advantages of private cloud are compliance and data protection, reliability and security are under the control of IT department; but from the efficiency of resource sharing, public cloud expansion is flexible and price advantage is obvious. Therefore, how to make full use of the advantages of public and private clouds is the idea of hybrid clouds.

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