What is cloud computing?
Chengtiandaowan are talking about the cloud, in the end what is the cloud computing mile? Wikipedia, cloud computing is configurable shared pool of computing resources and a higher level of service, it can be configured quickly (generally used the Internet) with minimal management; in Baidu Wikipedia, cloud computing is Internet-based related services increase the use and delivery models ......
In fact, you can be understood as cloud computing resource sharing pool. For example is, I have a lot of things, the family does not fit, into a specific place aside, ready to extract, others can not touch, quality and quantity.
"Something" generally refers to data, software, services, and "specific place" is the cloud.
How is cloud deployments?
Here I have to say about cloud computing services and delivery methods, that is, all the common IaaS, PaaS, SaaS. In the end the three "aaS" is what, I bring you a closer look.
IaaS is actually "Infrastructure as a service" in the acronym, translated as "infrastructure as a service" for ease of use has become a "IaaS." IaaS is the user through the purchase / lease virtual servers to use the cloud to deliver cloud services, at this stage of the business users to use less.
PaaS "Platform as a Service" is the service that is platform. Cloud computing application services to companies operating and development environments as a service to users, users can develop their own cloud on this platform. Domestic like Ali, Huawei, Tencent and other companies will provide such services.
SaaS "Soft as a Service" that is, software as a service, cloud services software developers typically positioned on the cloud, users an interactive way to use cloud by purchasing software. We often use nails, this target and other enterprise software is a form of SaaS.
How private cloud, public cloud, hybrid cloud defined?
Private cloud is understood from the literal meaning of the private cloud, users develop their own cloud computing companies or individual users and the development of private cloud is the cloud. Private clouds are costly to develop, need to have certain hardware and software infrastructure, but safety is a three cloud in the highest.
Public clouds generally refers to everyone with a cloud, in general, users will be charged a relatively small fee or free of charge. In our daily lives, most commonly Baidu cloud disk, micro-channel public cloud cloud are all, of course, cloud three telecommunications operators also used public cloud. Convenience is the biggest feature of public cloud, security is the lack of public cloud.
Hybrid Cloud integration of public and private clouds, cloud computing is the future market trends. Enterprise customers want both to the data on the private cloud to maintain the independence and security, but also wants to use public cloud platform for sharing resources. Hybrid Cloud matching private and public clouds, both to ensure the safety also reached cost savings, improve efficiency, has been used in the medical field.
Advantages of cloud computing
A more secure
- *** server to avoid the virus caused paralysis and loss of data.
- Avoid being DDOS ***, the server was forced to close.
- Avoid the explosive increase in traffic, host traffic exceeded, the server can not access.
- Avoid the surrounding natural environment, the server there is risk of damage.
- Avoid blackouts stop network software affect normal use.
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To avoid damage to the server hardware, resulting in data loss.
Second, more money - Eliminating the need for local servers consume electricity, about 3,000 yuan / year.
- Eliminating the need for server hardware procurement costs, annual savings ranging from a few thousand to several million.
- Eliminating the need for broadband fees, custodian fees, domain name resolution (IP wizard) and other expenses.
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Eliminating the need for special labor costs are the maintenance people.
Third, easier way - Eliminating the need for local server installation, the deployment of a series of work.
- Eliminating the need for professional server operation and maintenance work.
- Eliminating the need for software version upgrade, data migration, cross-version upgrades and other issues.
- Eliminating the need for technicians do not understand because of server software. The cause can not be plagued by software problems resolved.
- Eliminating due to traffic, time and efficiency as a result of poor software service experience, time and effort is not timely issues.
- Eliminating the need for customers because he could not solve the problems for customers of negative emotions
in general cloud computing has a high safety, high reliability, high performance and peace of mind as well as time-saving features, operation and maintenance of professional services 7 * 24 as well as its own strong technological advantages brought about by good customer experience is a lot of customers to use their own software to change from traditional software causes cloud computing software.