Service Availability In Cloud Computing

1. Cloud computing Information Resource Management Model 1.1 The origins, definitions, and characteristics of cloud computing "cloud computing" has a long history, as early as in 1961, McCarthy, a computer expert at MIT, predicted that computers would eventually become a global public resource. 2006, Google formally proposed the "Cloud computing" (Cloud Computing) terminology, and to the University of Washington to provide 40 PCs composed of a small cloud, open ...

I have experienced the myth world from microcomputers to supercomputers, from email to Internet, and from parallel computing (parallel comouting), to decentralized computing (decentralized computing), To the application of distributed Computing (distributed computing), by Telnet remote in the large computer with more than 3,000 CPUs (such as Japan's so-called fifth generation of computers) on the use of 1024 CPUs to verify their own ...

Recently, http://www.aliyun.com/zixun/aggregation/32714.html "> news media is more focused on cloud computing, so you will rarely hear about high availability." 5 years ago, the IT community was very focused on high availability and cluster development. But in the near term, things are different. In any case, high availability remains one of the key topics in the IT world, says Kai Dupke, senior product manager at SuSE. The IT industry is more focused on the flexibility of cloud computing and the advantages of low cost ...

"China Cloud net Exclusive" Chen Whilin, China Cloud Network chief Consultant 4 case study-Amazon AWS 4.1 Amazon AWS System Architecture Amazon AWS was launched in 2006 and belongs to the IaaS (infrastructure as a service) in cloud computing services. Amazon AWS provides data center clusters in various regions of the world (Region). It is divided into 4 major areas. Including: North Amerian Re ...

As a new computing model, cloud computing is still in its early stage of development. Many different sizes and types of providers provide their own cloud-based application services. This paper introduces three typical cloud computing implementations, such as Amazon, Google and IBM, to analyze the specific technology behind "cloud computing", to analyze the current cloud computing platform construction method and the application construction way. Chen Zheng People's Republic of Tsinghua University 1:google cloud computing platform and application Google's cloud computing technology is actually for go ...

Through the introduction and analysis of the cloud computing application cases of the U.S. federal, local government and some global famous enterprises in the financial and pharmaceutical industries, this paper summarizes the common characteristics of the cloud computing services adopted by the Government and the global famous enterprises to abandon the traditional IT system infrastructure. 　　Finally, some ideas about the development strategy of cloud computing in our country are put forward. The subprime crisis, which originated in America in the 2008, gradually turned into a financial tsunami, triggering a global financial crisis. Economists have likened the financial crisis to the Great Depression of the United States in the late 30, which shows the extent and severity of its impact. ...

Cloud computing is a hot-fired term this year, major IT giants: Amazon, Google, Microsoft, Yahoo, IBM and so on to test the water, the introduction of cloud computing platform and a variety of cloud computing service model to attract the public eye, not only large companies, small and medium-sized enterprises are swarming, and tasted the many benefits of cloud computing. 　　So what is cloud computing? In layman's terms. Cloud computing is a huge server cluster, according to user needs dynamic mobilization of resources, ...

Cloud computing is a new computing model. One of its notable advantages is that cloud computing users can use services from the Internet anytime, anywhere, and pay by usage. When you need to increase (or reduce) computing power, you can get (or release) resources immediately, whereas in traditional data centers (not private cloud environments) users need to purchase hardware, install configuration operating systems and middleware software, and deploy applications. The difference between the two approaches in operation and maintenance is clear, which is one of the main reasons why cloud computing can be hot-won and chased by the industry. So is cloud computing perfect? In the clouds ...

This article aims at the risk type of cloud computing using classic "CIA three", namely confidentiality, integrity and usability to define, and put forward relevant defense, detection, blocking measures. 　　This section describes availability. 　　"A": Availability (availability) risks are closely related to the vulnerabilities and threats of service reliability when taking into account services that require reliable use of low risk and low failure rates. 1 Service Denial of service (DoS) or Distributed denial of service (DDoS) attacks are attempts to make ...

"China Cloud Net Exclusive" Author: Chen Whilin Chief Advisor Summary: Cloud computing is being used by more and more individuals and businesses, but there is growing concern about cloud computing services in terms of security, reliability, and certainty of service response. While cloud service providers (Clouds Service Provider) generally commit to the availability (availability) scope of SLAs (service level agreement), many cloud tenants do not understand the inherent complexity of usability ...