Sinsing Notebook Cloud Fourth four modes of cloud

Although cloud computing is relatively single from a technical or architectural point of view, in practice it can evolve into different patterns in order to accommodate the different needs of the user. At NIST (National Institue of Standards and Technology, American Institute of Standards and Technology), "The NIST Definition of Cloud Computing" The four modes of cloud are defined in the document: Public, private, hybrid, and industry clouds.

Public Cloud:

(1) Public cloud is now the most mainstream and most popular cloud computing model. It is a public-open cloud service that can support a large number of requests, and because of the advantages of scale, the cost is low.

(2) In the construction, there are three ways: ① alone, it can do their own needs to maximize the optimization, but the need for a very professional team of engineers, currently only Google a home. ② is a joint build that avoids its own team's involvement in unfamiliar areas and makes bold innovations in the areas they specialize in. ③ Buy Business Solutions. Although it is difficult to have core competitiveness, it is more secure in terms of risk.

(3) The main advantages of public cloud are: large scale, low price, flexible, comprehensive function

(4) The main drawbacks of public cloud are: lack of trust (enterprises worry about data security), not supporting legacy environment

Private Cloud:

(1) The private cloud primarily provides cloud services to the enterprise, is not open to the public, works within the enterprise's firewall, and enterprise IT personnel can effectively control their data, security and quality of service. Compared to traditional data centers, private clouds can support dynamic and flexible infrastructures, reducing the complexity of it architectures, and the integration and standardization of various IT resources.

(2) There are two main ways to create a private cloud: ① is built independently. ② Buy Business Solutions

(3) The advantages of private cloud include: ① data security. For enterprises, especially for large enterprises, business-related data is its lifeline, is not subject to any form of threat and violation, and to strictly control and monitor the storage and location of such data. These deployments are risky in the public cloud, but the private cloud has an advantage in this respect, as it is generally built into the firewall and the enterprise is more at ease. ② Quality of Service (SLA). Because private clouds are typically internal to the enterprise, not in a remote data center, when company employees access the private cloud-based applications, the quality of their services is very stable and unaffected by accidental anomalies in the remote network. ③ make full use of existing hardware resources. For large companies, there are a lot of low-utilization hardware resources that can be re-emerging through some private cloud solutions or related software. ④ supports custom and legacy applications. Now the scope of the public cloud support applications are biased, biased toward x86, for some of the most customized applications and legacy applications are likely to be helpless, but these are often belong to an enterprise's most core applications, such as mainframe, UNIX and other platform applications. ⑤ does not affect the existing IT management processes. For large enterprises, the process is the core of its management, if there is no perfect process, the enterprise will become disunity. Not only is there a lot of internal and business-related processes, but it also has a lot of processes, and most of it is indispensable. In this regard, private clouds are much better than public clouds because IT departments have full control over the private cloud, so they have the ability to better integrate the private cloud with the existing processes than the public cloud.

(4) The main disadvantage of private cloud is its high cost. Because it takes a high initial cost to build a private cloud, especially if you need to buy a solution for a large manufacturer, second, if you need to maintain a professional cloud computing team within the Enterprise, its continued operating costs are equally high.

Hybrid Cloud:

(1) Hybrid cloud is the way to combine public and private clouds, which is a trade-off between the privacy of the private cloud and the low-cost flexibility of the public cloud. For example, organizations can deploy non-critical applications to public clouds to reduce costs and deploy high-security, critical core applications to a fully private private cloud.

(2) There are few examples of hybrid clouds.

(3) Hybrid cloud is built in two ways: the data center of ① Outsourcing enterprise. The enterprise has set up a data center, but the specific maintenance and management work is outsourced to the professional cloud provider, or invite the professional cloud provider to build the cloud computing Center for the enterprise directly in the factory, and after the completion, responsible for the future maintenance work. ② Buy Private cloud services. By purchasing private cloud services from cloud providers such as Amazon, you can incorporate some public clouds into your enterprise's firewalls and isolate them between these compute resources and other shared cloud resources, while gaining significant control and loss of maintenance.

(4) The advantage of hybrid cloud is that it can enjoy the privacy of close to private cloud and the cost of approaching public cloud.

(5) The disadvantage of hybrid cloud is that the hybrid cloud products are less, and in the privacy of the private cloud is not good, in terms of cost than the public cloud low, operation is more complex.

Industry Cloud:

(1) The industry cloud refers to a cloud that is designed specifically for the business of an industry and is open to multiple businesses that belong to the same industry.

(2) Industry cloud does not have very mature example, in the construction aspect, the industry cloud mainly has two kinds of ways: ① is created alone, the leader of an industry creates an industry cloud independently, and shares with other companies in the same industry. ② is built together, and multiple companies of the same type can jointly build and share a cloud computing hub, or invite external suppliers to participate.

(3) The advantage is to be able to do special optimization for the business of the industry, to further facilitate users, but also to reduce costs.

(4) The disadvantage is that the scope of support is small, can only support an industry, and the construction cost is high.

(5) The industry cloud is ideal for industries where business needs are similar, but costs are very much in focus.

Sinsing Notebook Cloud Fourth four modes of cloud