PPT-Implementation of Simple Cloud-based Distributed File System

Group ID 4 Baolin Wu Liushan Yang Pengyu Ji Motivation amp Goals Distributed File System provides more reliable service Cloud Storage Service is very popular Google Cloud Storage Dropbox Amazon SC3 have many users. Priya Bhat, Yonggang Liu, Jing Qin. Content. 1. . Ceph. Architecture. 2. . Ceph. Components. 3. . Performance Evaluation. 4. . Ceph. Demo. 5. Conclusion. Ceph Architecture. What is Ceph?. Ceph is a distributed file system that provides excellent performance, scalability and reliability.. eOffice. in. Collectorate, North 24 . Parganas. . West Bengal. Presented by: Randhir Kumar, IAS. on 4/4/2014. . in collaboration with. . National Informatics Centre. . from . Leslie . Lamport. Who is he?. Leslie . Lamport. (born February 7, 1941 in New York City) is an American computer scientist. . Lamport. is best known for his seminal work in distributed systems and as the initial developer of the document preparation system . Advanced Operating System. Zhuoli. Lin. Professor Zhang. Outline. Semantics of File Sharing. File Locking. Sharing File in Coda. Future Work. Semantics of File Sharing. When two or more users share the same file at the same time, it is necessary to define the semantics of reading and writing precisely to avoid problems.. Abstract. Remote data integrity checking is of crucial . impor¬tance. in cloud storage. It can make the clients verify whether their outsourced data is kept intact without downloading the whole data. In some application scenarios, the clients have to store their data on multi-cloud servers. At the same time, the integrity checking protocol must be efficient in order to save the verifier’s cost.. P. rogramming . F. rameworks for Scientific Applications. Thilina. . Gunarathne. Indiana University. Trends. Massive data. Thousands to millions of cores. Consolidated data centers. Shift from clock rate battle to multicore to many core…. P. rogramming . F. rameworks for Scientific Applications. Thilina. . Gunarathne. Indiana University. Trends. Massive data. Thousands to millions of cores. Consolidated data centers. Shift from clock rate battle to multicore to many core…. Clocks. External clock synchronization (. Cristian. ). Internal clock synchronization (. Gusella. & . Zatti. ). Network Time Protocol (Mills). Decisions. Agreement protocols (Fischer). Data. Distributed file . Set up a large number of machines all identically configured. Connect them to a high speed LAN. And to the Internet. Accept arbitrary jobs from remote users. Run each job on one or more nodes. Entire facility probably running mix of single machine and distributed jobs, simultaneously. Cristian . Borcea . Department of Computer Science. New Jersey Institute of Technology. Mobile Distributed Apps Assisted by Cloud. Enable direct collaboration among mobile users. Novel apps based on huge amounts of data generated every day by . sees VLeZBo[: ,nteJratLnJ LocaO FLOe S\stems Yupu =KanJ CKrLs DraJJa Andrea ArpacL-Dusseau RemzL ArpacL-D Incredibly popular: Dropbox has 100 million+ usersBack up files to th IMGD M.S. Thesis Presentation. Meng. Luo. Advisor: Professor Mark Claypool. Committee: Professor David . Finkel. . Professor Robert W. Lindeman. 1. Background (1/2). What is Cloud Gaming?. Outline . File-System Structure. File-System Operations. Directory Implementation. Allocation Methods. Free-Space Management . Efficiency and Performance. Recovery. Example: WAFL File System. Objectives. Maintenance. 3IT. Distributed System maintenance. The benefit of a distributed system such as client/server is the adaptability and scalability of these architectures to meet rapidly changing business information technology needs .