In this paper we have proposed a new distributed data management system (DDMS) called
DOT which provides high performance in an environment of high data mobility and …

The need for data storage is related to the very beginning of digital data processing. Data
were first stored on floppy disks, magnetic tape and at the end on hard diskc. Today, in order …

This paper presents a distributed storage system which is built by lots of low-cost nodes.
Low-cost node is divided into two parts: metadata nodes and storage nodes. The storage …

Need of storing huge amounts of data has grown over the past years. The data should be
stored for future reuse or for sharing among users. Data files can be stored on a local file …

The distributed environments vary largely in their architectures, from tightly coupled cluster
environment to loosely coupled Grid environment and completely uncoupled peer-to-peer …

Peer-to-peer networks provide a framework appropriate for building various distributed
applications. One of such applications is a distributed file replication system. File replication …

Data replication is a central technique to increase availability and performance of distributed
systems. While offering many advantages it also requires more effort for ensuring data …

As computing becomes increasingly distributed, the need for accessing and manipulating
distributed data becomes prominent. The focus so far has been on developing fault-tolerant …

According to those features proposed in this paper we let the normal user's computers get
involved in the data grid system easily, and share their powerful resources with the system …

Distributed Systems allow a number of nodes to collaborate on a problem. They can be of
help when a single server can no longer fulfill the requirements or when a larger number of …