Zhuji City, Zhejiang has an area of ​​2311 square kilometers, governs 24 towns and 3 streets, and has a resident population of about 1.5 million. There are more than 200 schools in Zhuji City, including 158 ordinary primary and secondary schools with 159,652 students; 112 primary schools with 75915 students; 33 junior high schools with 40708 students; 13 high schools with 43029 students people. There are 3443 teachers and staff in primary schools, 2641 teachers in junior middle schools and 1729 teachers in high schools. Preschool education is basically popularized, and the enrollment rate in the first three years of the school has reached 96.04%; 135 schools have passed various types of provincial standard chemistry check and acceptance; general high education has maintained a leading position, and 9 of 11 ordinary high schools have been established as provincial key middle schools.
Zhuji regional education cloud storage pool architecture diagram
Project background and needs
In order to improve the ability of teachers and students of elementary and middle schools to apply information technology, narrow the digital divide between urban and rural areas, and promote the balanced development of basic education, Zhuji Municipal Education Bureau decided to adopt new cloud computing technology to speed up the construction of basic education information facilities in primary and secondary schools in the city Improve the vitality ratio of primary and secondary schools. At the same time, it will promote actions such as the construction and sharing of high-quality digital educational resources, the implementation of teachers' educational technology capabilities, and the comprehensive implementation of digital campus construction in primary and secondary schools, and continue to improve the popularity and application of education informatization. Education cloud infrastructure services are flexible. When a school increases or decreases resources, the system will automatically allocate enough resources from the public resource buffer pool to ensure the supply, so that the school can share advanced software and hardware resources on the cloud platform and enjoy high-quality information services. Avoiding repeated investment in schools can also reduce the pressure on software and hardware maintenance.
The core requirements of Zhuji regional education cloud are the construction of cloud platform, the deployment of desktop cloud and the promotion of teaching applications. Zhuji Education Cloud is a pilot project of Zhejiang Education Cloud. It needs to build a leading regional education cloud in China, implement centralized maintenance and management of regional resources, and implement a centralized application model of regional education informatization to promote the leap-forward development of education informatization.
Zhuji Regional Education Cloud needs to connect to more than 200 schools. The new desktop cloud terminal will replace some of the old teacher office computers and student computers. 5000 desktop cloud terminals are deployed this time, of which 1,000 are teacher terminals and 4000 are student terminals. , The student terminal part will cover 125,000 students' courses on-board requirements. In 2014, the number of desktop cloud terminals will exceed 30,000, which will eventually achieve the goal of 1: 1 virtual machine vitality ratio and 1: 1 teacher-to-machine ratio.
The biggest challenge for the regional education cloud cloud storage pool is to solve the storage I / O bottleneck, storage system stability, and heterogeneous storage management problems brought about by the deployment of large-scale virtual machines. Challenge one: In terms of storage IO bottlenecks, with the rapid increase in the number of virtual machines, a sudden increase in random read and write I / O is inevitable, thereby increasing the overall system requirements for storage I / O performance. Need to fully consider storage planning to improve system data access speed, achieve rapid delivery of educational resources and 5000 virtual desktops smooth user experience, build regional education cloud storage pool; Challenge two, storage system stability, due to the convergence of regional education clouds All the resources of Zhuji City Education have also brought risks. The failure of the storage system will lead to the unavailability of the entire education cloud service. It must require the reliability of more than 99.999% of the storage infrastructure; Challenge three, Zhuji Education Information Center Maintenance personnel came to maintain the 5,000 cloud terminals and related data center equipment of this project, and the management of the entire cloud storage pool with a single interface is the basic condition for scientific operation and maintenance to reduce the daily operation and maintenance workload.
HDS cloud storage pool solution
Cloud storage pool is one of the most important components of Zhuji regional education cloud project. HDS strictly follows the industry's advanced storage integration concept and builds a perfect storage resource pool for the long-term sustainable development of Zhuji Regional Education Cloud.
Solution point 1: In the desktop cloud platform system, the performance of the data center storage system has the greatest impact on the overall virtual desktop customer experience. The industry ’s most powerful storage system is selected to provide the best user experience for teachers and students ’virtual desktops;
Solution Point 2: The project design considers the Zhuji Education Regional Education Cloud Project to cover the large-scale deployment of approximately 30,000 virtual terminals and more education applications in the next three years, and the HDS cloud storage pool can be smoothly expanded in 3D to sufficient storage performance and storage capacity ;
Key point of the scheme 3: The storage system is the basic structure supporting the regional education cloud project and an important part of the cloud. The cloud storage pool solution provided by HDS can manage all heterogeneous storage in the data center through a single interface and manage the two maintenance teachers. The workload of storage and operation and maintenance is minimized;
Solution Point 4: HDS provides 100% data availability guarantee for Zhuji Regional Education Cloud and provides the industry's most stable storage system to build Zhuji Regional Education Cloud. Manufacturers, not customers, bear the risks of cloud storage aggregation data.
Future construction plan of Zhuji cloud storage pool
According to the current 5,000 terminal concurrent scale in the first phase, the number of concurrent desktop cloud terminals in Zhuji will reach at least 30,000 in 2014. The cloud storage pool design fully takes into account the smooth expansion of Zhuji Education Cloud in the future. Through VSP 3D expansion, realize the most optimized SAN infrastructure. Vertical expansion, by dynamically adding processors, cache modules, interface module directors, and disk capacity to a storage unit, can meet the growing business storage needs and enable users' IT systems to obtain the best performance. Horizontal expansion, using shared resources to dynamically integrate multiple storage units into a logical system to meet business needs. By splitting cache and ports, it meets the growing demand in a virtualized server environment, and guarantees multi-tenant security and quality of service. In-depth expansion, through the virtualization to extend the advanced functions of HDS VSP to multi-vendor storage environment, for example, can connect and virtualize the storage devices of other manufacturers such as HP, HDS, EMC, DELL, IBM and other nearly all international mainstream brands化 管ç†ã€‚ Management. HDS VSP can virtualize and manage up to 247PB of external storage capacity, and provide multi-tenant support through virtual ports, cache partitions, resource group access control, and volume ownership management. In addition, the user data space is expanded by adding NAS storage space. The first-phase configuration of HNAS supports the available space up to 1PB; the expansion of NAS performance by adding a new HNAS controller. When the first-phase cloud storage pool has been built, the increase in the second-phase storage resources will expand within the architecture by smoothly increasing capacity and performance on the basis of the first-phase architecture. The entire expansion process will be smooth, flexible, and "zero" impact on the original desktop cloud business.
Zhuji Education Cloud Scene
Teacher office scene
There is a brand-new computer on the teacher's desk, a 19-inch widescreen, where there should be a host, but there is only a set-top box-like device, connected to the monitor, keyboard and mouse, network and printer. The teacher selects "working machine", enters the user name and password ..., and clicks "OK". The familiar desktop immediately appears. There are various teaching resources of the teaching department in the document directory, and the program is also installed for this semester. To the software. Click "Disk D:", there is actually 500G capacity.
Student on-board scene
After the class bell rang, the students stepped into the student's computer room in an orderly manner. The students entered their student numbers on the computers one after another. The familiar system started the welcome interface. Before officially starting the new course, the teacher first reviewed the knowledge in the previous section, and also commented on the homework that everyone left in the data disk. Xiaoming ’s homework was displayed on the classmates ’computers and got Focus on praise. Today's course is: "Wonderful Screensaver Design". The students sometimes watched the teacher's demonstration on their own screens, sometimes operated the practice, and raised their hands electronically to ask questions from time to time. With the help of the teacher's manipulation, the teacher also played teaching videos for the students to watch. The bell of the class rang, and the students stood up and said goodbye to the teacher. Although some students did not do their homework, they were all on the computer. You can log in and continue to do your homework when you go home. The computer class is getting more and more interesting!
Customer testimony:
"Zhuji Education Cloud brings together all the data of the municipal schools and the potential risks. We need the most reliable storage pool. Thousands of teachers and students issue virtual desktops through the city education cloud. We need high-performance IO storage. Pool. Zhuji's high-quality digital education resource sharing is also inseparable from the education storage pool. HDS provides us with the most stable, highest performance and most flexible cloud storage pool. "Said Zhang Zhenchao, deputy director of the Information Center of Zhuji Education Bureau.
3 Folds and 5 Folds Hand Towel Paper
Multi Fold Tissue,Multifold Hand Towel,Multifold Towel Tissue,Disposable Paper Hand Towels
Yafeng Paper Industry Co., Ltd , https://www.tenoutissue.com