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Cloud Virtual Machine to achieve what is the principle of operation, I believe that many inexperienced people do not know what to do, this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Cloud Virtual Machine is realized based on cloud computing technology. Cloud computing refers to the delivery and usage mode of IT infrastructure, and refers to obtaining the required resources (hardware, platform and software) in an on-demand and easy-to-expand manner through the network. The network that provides resources is called the cloud.

Resources in the cloud appear to users to be infinitely scalable, readily available, on demand, and pay-as-you-go. A "cloud" is a pool of computing resources, usually large clusters of servers, including compute servers, storage servers, bandwidth resources, and so on.

Cloud service providers centralize all computing resources and provide them to users through the network. This allows application providers to focus more on their business without worrying about cumbersome details, which is conducive to innovation and cost reduction.

Cloud Virtual Machine commonly uses distributed storage, resource scheduling, and virtualization technologies. Virtualization technology includes server virtualization, storage virtualization, memory virtualization and network virtualization.

virtualization technology

1. By using server virtualization, the CPU, memory, disk and other hardware of the server are centrally managed, and the resource utilization efficiency is improved through centralized dynamic on-demand allocation.

2. Storage virtualization separates the logical view of storage resources from physical storage, providing seamless resource management for the system. However, the storage standardization is low, and the technologies of different cloud service providers should consider compatibility.

3. Memory virtualization is the management of memory by a computer memory system, which makes upper applications have continuously available memory and divides multiple fragments at the physical layer to meet memory allocation and necessary data exchange.

4. Network virtualization uses software to separate network power from physical network elements and has something in common with other forms of virtualization.

distributed storage

Distributed storage is used to consolidate a large number of servers into a single supercomputer, providing a large number of data storage and processing services. Distributed file systems and distributed databases allow access to common storage resources and IO sharing of application data files.

resource scheduling migration

Virtual machines can break through the limitations of a single physical machine, dynamically adjust and allocate resources, eliminate single points of failure of servers and storage devices, and achieve high availability. When the host of a compute node needs maintenance, the cloud host running on it can be migrated to other idle nodes without downtime through hot migration technology.

When a compute node is physically damaged, it can also migrate its services to other nodes in about 3 minutes, with very high reliability.

After reading the above, do you know how to realize the principle of Cloud Virtual Machine? If you still want to learn more skills or want to know more related content, welcome to pay attention to the industry information channel, thank you for reading!

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