PPT-Distributed File Systems

CS60002 Distributed Systems INDIAN INSTITUTE OF TECHNOLOGY KHARAGPUR 1 Antonio Bruto da Costa PhD Student Formal Methods Lab Dept of Computer Sc amp Engg Indian Institute of Technology . Access to resources of various machines is done explicitly by Remote logging into the appropriate remote machine Transferring data from remote machines to local machines via the File Transfer Protocol FTP mechanism Tightly Coupled Distributed System Data consistency Asynchronous writeback for user data Write back forced after fixed time intervals e g 30 sec Write back forced after fixed time intervals eg 30 sec Can lose data written within time interval Maintain new version of data in temporar 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.. Sig Freund. CSC 8320 Fall . 2008. rfreund1@student.gsu.edu. Transparency in Distributed Operating Systems. Evolution of Modern Operating Systems. Centralized operating system. +network access and resource sharing. H-FILE P-FILE H-FILE P-FILE H-FILE P-FILE TECHNICAL VARIABLES SOCIO-DEMOGRAPHIC VARIABLES irregular/casual/odd jobs for payODDJOB_CIdentifiersLiving arrangementsunofficial/non-registered/untaxed workN 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.. Prepared . by. Asma. . AlOtaibi. 200800689. Author & Published date. Jussipekka. . Leiwo. , . Monash. University, PSCIT, McMahons Road, Frankston, Vic 3199, Australia. . Seppo. . Heikkuri. , . . Hoang Huu Hanh, Hue University. hanh-at-hueuni.edu.vn. Architectural Design - . Establishing the overall structure of a software system. Topics covered:. System structuring. Control models. Modular decomposition. Sig Freund. CSC 8320 Fall . 2008. rfreund1@student.gsu.edu. Transparency in Distributed Operating Systems. Evolution of Modern Operating Systems. Centralized operating system. network access and resource sharing. Prof. Nalini Venkatasubramanian. Distributed Systems Middleware - Lecture 2. Global Time & Global States of Distributed Systems. Asynchronous distributed systems consist of several . processes. without common memory which communicate (solely) via . What is a hard disk partition?. File Systems - Partitions. What is a hard disk partition?. Physical (or logical) storage space division on disk. Typically, so can put a file system inside the partition. October 11, 2018. A.F. Cooper. Context and Motivation. How can we synchronize an asynchronous distributed system?. How do we make global state consistent? . Snapshots / checkpoints. Example: Buying a ticket on Ticketmaster. Prof. Nalini . Venkatasubramanian. . &. Prof. Yusuf . Sarwar. Dept. of Information & Computer Science. University of California, Irvine. Intro to Distributed Systems Middleware. 2. CS 237/. NetSys. Metdata. Management for Distributed File Systems. Thomas Kao. 1. Background. Scalable solutions provided for data storage, why not file systems?. 2. Motivation. O. ften . bottlenecked by the metadata management .