International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
The basic function of file system is to provide a long time reliable storage. Similar to a local based file system, Distributed File System (DFS) stores files on one or more computers called servers DFS often provide file replication as a service to their clients. This paper focuses on replication in distributed file systems. Replication is a key strategy for improving reliability, availability and performance in distributed systems. This paper gives a brief introduction to replication and various algorithms have been discussed and a detailed study has been performed. The comparison table shows it clearly that an algorithm satisfies the replication requirement.