Erasure codes have been widely considered as a promising solution to enhance data reliability at low storage costs. However, in modern geo-distributed systems, erasure may incur high access latency they require retrieval from multiple remote nodes. This hinders the extensive application of data-intensive applications. paper proposes novel caching schemes achieve distributed coded systems. Assum...

Conventional studies in communication networks mostly focus on securely and reliably transmitting data from a source node (or multiple source nodes) to multiple destinations. A more general problem appears when the destination nodes are interested in obtaining functions of the data available in distributed source nodes. For obtaining a function, transmitting all the data to a destination node a...

Distributed file systems provide a fundamental abstraction to location-transparent, permanent storage. They allow distributed processes to co-operate on hierarchically organized data beyond the life-time of each individual process. The great power of the file system interface lies in the fact that applications do not need to be modified in order to use distributed storage. On the other hand, th...

Revision : 1.148 This paper presents a taxonomy of key topi s e e ting resear h and development of distributed storage systems. The taxonomy nds distributed storage systems to o er a wide array of fun tionality, employ ar hite tures with varying degrees of entralisation and operate a ross environments with varying trust and s alability. Furthermore, taxonomies on autonomi management, federation...

We analyze how modern distributed storage systems behave in the presence of file-system faults such as data corruption and read and write errors. We characterize eight popular distributed storage systems and uncover numerous bugs related to file-system fault tolerance. We find that modern distributed systems do not consistently use redundancy to recover from file-system faults: a single file-sy...

Highly available cloud storage is often implemented with complex, multi-tiered distributed systems built on top of clusters of commodity servers and disk drives. Sophisticated management, load balancing and recovery techniques are needed to achieve high performance and availability amidst an abundance of failure sources that include software, hardware, network connectivity, and power issues. Wh...

This paper discusses some fundamental aspects of Distributed File Systems (DFS) for Storage Area Networks (SANs). Many desirable features make a SAN DFS attractive to a production environment that processes huge volumes of bulk data and requires high bandwidth. Throughout the discussion, the traditional server-attached storage model is compared against the distributed network-attached storage m...