云计算的六大特征(云计算的基本特征有哪些呢)

The five basic characteristics of cloud computing are: 1. Elastic service; the scale of the service can be quickly expanded to automatically adapt to dynamic changes in business loads. 2. Resource pooling; resources are managed uniformly in a shared resource pool. 3. On-demand services. 4. The service can be billed. 5. Ubiquitous access; users can use various terminal devices to access cloud computing services through the Internet anytime and anywhere.

Extension: Cloud computing is a type of distributed computing, which refers to the decomposition of huge data computing processing programs into countless small programs through the network "cloud" , and then process and analyze these small programs through a system composed of multiple servers to obtain the results and return them to the user.

1. Cloud computing is an increase, use and delivery model of Internet-based related services, which usually involves providing dynamic, easily scalable and often virtualized services through the Internet. resource. Cloud is a metaphor for network and Internet. In the past, cloud was often used to represent telecommunications networks in diagrams, and later it was also used to represent the abstraction of the Internet and underlying infrastructure.
2. Characteristics of cloud computing:
1. Ultra-large scale. The cloud has a considerable scale. Enterprise private clouds generally have hundreds or thousands of servers. The cloud can give users unprecedented computing power.
2. Virtualization and cloud computing support users to obtain application services at any location and using various terminals. The requested resources come from the cloud rather than from fixed, tangible entities.
3.

The basic characteristics of cloud computing are as follows:

1. Rapid scalability: Scalability refers to expanding resources upward or downward according to needs Ability. For users, there is no limit to the number of cloud computing resources, and they can purchase any number of resources according to their needs. This is a major characteristic of cloud computing in the NIST definition.

2. Measurable service: Under measurable service, the cloud computing provider controls and monitors the usage of all aspects of the cloud computing service. This has important implications for billing, access control, resource optimization, capacity planning, and other tasks.

3. On-demand self-service: Cloud computing’s on-demand service and self-service mean that users can directly use cloud computing services when needed without having to interact manually with service providers.

4. Ubiquitous network access: This means that the supplier's resources are available through the Internet and can be accessed through standard mechanisms through thin clients or rich clients.

5. Resource pool: Resource pool allows cloud computing providers to serve users through multi-user sharing mode. Physical and virtual resources can be allocated and reallocated based on user needs. Resource pools are location-independent, and customers generally do not have control or knowledge of the exact location of the resources being provided, but they can specify the location at a high-end extraction level (such as region, country, or data center).

Resource Monitoring

The resource data on the cloud system is very large, and the resource information is updated quickly. If you want to be accurate and Reliable dynamic information requires effective ways to ensure the speed of information. The cloud system can effectively deploy dynamic information and also has resource monitoring functions, which is conducive to the management of resource load and usage.

Secondly, resource monitoring, as the "blood" of resource management, plays a key role in overall system performance. Once system resource supervision is not in place and information lacks reliability, other subsystems will quote wrong information, which will inevitably affect the system performance. The allocation of system resources is adversely affected. Therefore, it is urgent to implement resource monitoring work.

During the resource monitoring process, configuration and monitoring activities can be performed as long as the Agent is deployed on each cloud server, such as connecting each cloud resource server through a monitoring server.

Then the resource usage is sent to the database in units of cycles. The monitoring server analyzes all resources based on the effective information of the database, evaluates the availability of resources, and maximizes the effectiveness of resource information.