Structure System division of Cloud Data Center

By the year 2008, Ianfoster, the father of the grid, hosted the first cloud computing conference. This "cloud" as the core of the architecture will drive the traditional data center, so that the way the IT service radically changes, it brings not only the network "speed up", the original backbone and metropolitan area Network architecture will also change.


　　


Cloud Architecture Division


　　


we can look at cloud computing as a new computer paradigm that allows users to temporarily use grid computing facilities. These computing facilities are packaged by the cloud's provider as a service provider to the user. We look at cloud computing as a combination of services. We are using the cloud hierarchy stack to Paas,iaas the cloud's three models: the Cloud and SaaS three services to the different software architecture layers of the cloud-based system. ：


　　


The Web portal Access service provided by the user through the application tier. Generally speaking, the service is a charging item. But this business model is favored by most users because it reduces the cost of maintaining the software and operating support. In addition, users from the user terminal into the data center, greatly reducing user demand for hardware. The Cloud Software environment layer is the software platform (PaaS). Users of this layer are cloud platform developers who deploy applications on the cloud platform.


　　


Cloud Software Infrastructure Layer (IaaS) This layer provides the senior level with the basic resources, can compose the new cloud software environment or the application. The provision of cloud services is divided into three categories: computing resources, data storage and communication facilities. Compute resources: Provide virtual machines to cloud users. Data storage: Allows users to store data on a remote hard disk and access data at any time, effectively expanding the cloud user base. Data storage systems generally meet many requirements for maintaining user data, including availability, security, backup and data consistency, and so on


　　


Communication facilities: cloud services for the quality of the network has a high demand, is that network communications into a cloud system is a vital infrastructure components. Cloud systems provide communication capabilities: service-oriented, structured, predictable, and reliable. Software kernel: This level is responsible for managing the physical server infrastructure software management of the cloud. The software kernel can be viewed as the operating system kernel. Grid computing is deployed and running on this layer cluster, but there is a lack of virtualization abstraction in the grid, and the task is closely related to the real hardware infrastructure. Firmware and hardware: a cloud-forming hardware skeleton and switch.


　　


Cloud computing, compared with IDC, has a big difference in resource utilization. IDC generally uses the server hosting and the virtual host way to provide the service to the website. The network bandwidth, processing power and storage space obtained by each IDC group are fixed. However, the resources between most sites are actually uneven. Therefore, the IDC can not face the impact of sudden flow, will cause the resource paralysis and waste. While cloud computing provides resilient services, it dynamically allocates and frees resources within a large pool of resources based on the needs of each tenant, and does not need to provide peak resources for each tenant. And a large number of cloud computing, resources, utilization can be as high as 80%, the advantages of the traditional IDC 5~7 times. Therefore, the cloud computing is the future development trend of IDC.


　　　　


1, energy saving and consumption reduction


　　


in terms of energy costs, each thin client is about 6.25 times times more expensive per PC per year than a thin client.


　　


2, maintenance costs can be negligible, the virtual platform of the thin terminal is decentralized installation, centralized management, exclusive service. This not only solves the customer service telephone seat marketing problem, and 99% of the fault can be in the service end of the centralized solution, the annual maintenance fee equally after the basic negligible; The original PC is decentralized installation, decentralized maintenance, equipment damage replacement costs are even greater, and, more important, due to the spread of business outlets, Maintenance of a large amount of time spent on the remote road, maintenance efficiency is very low.


　　


3, the system is stable and reliable, and can run for a long time through the data focus to improve desktop management, improve data and system security, effectively improve the stability and reliability of the system. In addition, data center servers and thin clients deployed on the desktop are designed to be more reliable, long life of the whole machine, support long time connection work; In the virtualization technology, it also has a DRS, HA, FT and other advanced features, which effectively guarantee the stability and reliability of the system continuous operation.


　　


4, to achieve management concentration, improve manageability and maintainability through the application, desktop, user data concentration, real it centralized management, without the administrator to the table for each PC for a single point of maintenance, greatly improve manageability and maintainability.


　　


5, energy saving and environmental protection, no noise, to create a more quiet and comfortable working environment thin clients using high-speed ultra-low power consumption CPU and advanced cooling technology design, no fan, low power consumption, energy saving and environmental protection without noise, easier to create a quiet and comfortable call center work environment.


　　


6, Manageability


　　

The
modular ("Divide-and-conquer") concept will make it easier to view and compute the number of accesses in the console.


　　


7, High safety


　　


thin clients are tightly integrated with existing terminal security mechanisms to achieve the same stringent access and permissions control as when using physical PCs. Security that is used to enhance the visibility of user profiles. Modifications at any site must be remotely managed and videotaped for this operation, and therefore highly secure.