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This article uses simple and easy-to-understand examples to introduce you to the advantages and disadvantages of Cloud Virtual Machine. The content is very detailed. Interested friends can refer to it for reference. I hope it can help you.

With the development of Cloud Virtual Machine, Cloud Virtual Machine has become the emerging IT deployment mode with the most potential to occupy the Internet service market and the largest share. There are more and more Cloud Virtual Machine merchants on the market now.

I. Benefits of Cloud Virtual Machine

Elastic scaling: Estimation of application resource usage is a technical activity. Over-estimation is easy to cause waste of resources, under-estimation is easy to cause slow website card, difficult to run normally. Cloud Virtual Machine solves this pain point excellently. Flexible expansion or reduction of resources at any time according to application requirements.

2. Fast deployment and fast service launch: Time cost is related to enterprise business acquisition. In a few minutes, users can quickly access resources to acquire a complete Cloud Virtual Machine. This kind of fast delivery cannot be provided by traditional physical servers. Traditional servers need to be put on shelves, configure the network, install the operating system, etc., which usually takes hours or even days to calculate.

3, high availability and high disaster recovery: physical host rental hardware failure, requiring computer room technicians to spend a lot of time for maintenance. The real Cloud Virtual Machine has brand-new functions such as snapshot backup, multiple copy disaster recovery, hot migration, etc. Even if a single point of hardware failure occurs, it can quickly and automatically migrate to other Cloud Virtual Machine to continue normal use.

Simplify operation and maintenance processes and reduce operation and maintenance costs: labor costs are an important part of enterprise expenditures. With the Cloud Virtual Machine, all the maintenance work of the underlying server hardware and network is undertaken by the service provider. Users only need to maintain the internal problems of the Cloud Virtual Machine, which can avoid the O & M effort and cost generated when using the traditional server.

5. Low pricing and pay-as-you-go: Compared with physical server rental, Cloud Virtual Machine supports pay-as-you-go. With the improvement of cloud computing virtualization technology, resource utilization rate is high and cost is reduced. Therefore, the price decreases year by year, which can save a lot of expenses for enterprises and developers.

II. Disadvantages of Cloud Virtual Machine

1. Heavy reliance on the network

As we all know, Cloud Virtual Machine rarely has downtime problems, but Cloud Virtual Machine is a web-based management mode, which relies heavily on the network, and WEB applications are considered to have potential security risks for a long time. If a high-level hacker attack is encountered, it may be disastrous. Overseas top-level DNS service providers have been severely hacked. Whether ordinary cloud service providers have perfect and strong attack protection capabilities is also a big test that cannot be ignored.

2. Reduced customer control

In traditional servers, users have full access to the machine and can master all settings of the entire machine. The cloud host is placed in the public cloud and only provides network interfaces. Customer data needs to be arranged by the cloud service provider and is completely under the control of the service provider.

If the service provider does not have adequate data security protection measures, it may face the risk of data leakage. Although many service providers have far more technical management capabilities than users themselves, including uptime, bandwidth, load management, backup management, etc., whether to use Cloud Virtual Machine to deploy critical services depends on users 'trust in service providers.

What are the good and bad things about Cloud Virtual Machine to share here, I hope the above content can be of some help to everyone, you can learn more knowledge. If you think the article is good, you can share it so that more people can see it.

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