Dsitributed File Systems. Prepared By:- Monika Patel. Outline:-. What is Distributed File System? (DFS) Characteristics of DFS Transparency Concurrent File Updates File Replication Fault Tolerance Security IBM’s DCE Distributed File Service . Why we need File System ?.
Access Transparency:-A user can login in at any host in the system with uniform login procedure, independent of the host.
In other word program designed to work on a local file can work on a remote file without modification
Location Independency:-files or groups of files can be
relocated without changing their actual path (or file) names.
Mobility transparency:- A file may be moved, either by systems administrators or automatically.
Performance transparency:- programs should continue to perform satisfactorily, even under heavy load.
Scaling transparency:- file systems can be expanded by incremental growth to deal with a wide range of loads and network sizes.
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