Data Storage And Management Based On Cloud Computing Environment

The paper is on the hot-point Cloud Computing, first based on the development of the Cloud Computing nowdays, illustrated the weakness of the cloud storage, then based on the HDFS, distributed file system of open source Cloud Computing software Hadoop, analysesed clearly the advantages and disadvantages of HDFS, and gave the influence of safety and convenience of cloud storage for future application, and illustrated the import meaning of the paper.In the part of description of important Internet skills used in the paper, illustrated the skills such as cloud computing, operation system, WEB and encryption and decryption on file(s) for safety, skills about API of HDFS.In the chapter of the system designing, illustrated the architecture of the system based on functions. It consists of two main parts, one is about common user, the other is administrator. As a common user, you can upload and download file(s) to(from) personal cloud storage, and delete the file(s) that you don’t need any more. Besides, your storage can increase under the control of the administrator. Administrator is the master of all HDFS, you can monitor all datanodes and all user’s storage, and you can delete illegal user(s),and get storage back to HDFS from user.And as a administrator, you can also check the actual position of the part(s) of the file(s),on which physical machine. And there are count information line-plot for both common user and administrator range from day on sizes of file(s) uploaded to storage. Common’s is the count of its own, and administrator’s is for all users, that is for HDFS. At last gives the result analysis about the rate of encryption and decryption for different sizes files, and the rate for uploading to different position, disk and HDFS.In the part of development, gave the details about the cloud storage system. Finally, described the furture of the cloud storage.