Distributed/parallel file systems commonly suffer from load imbalance and resource contention due to the bursty characteristic exhibited in scientific applications. This article presents an adaptive scheme supporting dynamic block data replication and ...

Distributed storage systems like the Hadoop distributed file system (HDFS) constitute the core infrastructure of cloud platforms which are well poised to deal with big-data. An optimised HDFS is critical for effective data management in terms of reduced ...

Due to several demands on very high computing power and storage capacity, data grids seem to be a good solution to meet these growing demands. However, the design of distributed applications for data grids remains complex, and it is necessary to take into ...

In this paper, we propose a simulation model to study real-world replication workflows for cloud storage systems. With this model, we present three new methods to maximize the storage space usage during replica creation, and two novel QoS aware greedy ...

Cloud computing is becoming a very popular word in industry and is receiving a large amount of attention from the research community. Replica management is one of the most important issues in the cloud, which can offer fast data access time, high data ...

Replication technology can efficiently enhance data availability and thereby increase system reliability in cloud storage system. However, one urgent challenge is how to select the correct replica hosting sites, as different data center configurations ...

The configuration of a distributed storage system with multiple data replicas typically includes the set of servers and their roles in the replication protocol. The configuration can usually be changed manually, but in most cases, system administrators ...

Data replication enhances data availability and thereby improves the system reliability and efficiency while reduces access latency and communication cost. A critical issue in data replication is to wisely place data replicas which involves identifying ...

Content replication has gained much popularity in recent years both in the wired and wireless infrastructures. A key challenge faced by Wireless Mesh Networks (WMNs) is to determine the number and locations of content replicas (e.g. video clip) such ...

In this paper, we investigate a dynamic replica placement strategy to achieve minimum repair time during a complete loss of data center in large-scale distributed object storage systems while keeping the high availability and durability of the system as ...

Cloud-oriented content delivery networks (CCDNs) constitute a promising alternative to traditional content delivery networks. Exploiting the advantages and principles of the cloud, such as the pay as you go business model and geographical dispersion of ...

Many applications do not constrain the destinations of their network transfers. New opportunities emerge when such transfers contribute a large amount of network bytes. By choosing the endpoints to avoid congested links, completion times of these ...

Large-scale identification system is a distributed data processing system that requires both high throughput and high reliability. In large-scale identification systems, not only the volume of computing is extremely high but also the I/O volume per CPU ...

Cross datacenter data replication has been widely used in geo-cloud environment due to its ability to increase application's availability and improve the performance. However, with the large scale of cloud, it is difficult to determine the location of ...

Peer-to-Peer (P2P) network provides decentralized, self organized, scalable objects in distributed computing system. However such networks suffer from high latency, network traffic and cache update problems. The existing caching and replica placement ...

With the popularity of cloud computing, high volume data needs to be processed in real-time. Therefore, many distributed stream processing systems have risen to deal with this requirement. One kind of distributed stream processing applications contains ...

Wireless Mesh Networks (WMNs) extend Internet access in areas where the wired infrastructure is not available. A problem that arises is the congestion around gateways, delayed access latency and low throughput. Therefore, object replication and ...

The placement of replicas across storage nodes in a replication-based storage system is known to affect rebuild times and therefore system reliability. Earlier work has shown that, for a replication factor of two, the reliability is essentially ...

Recent years have seen rapid growth of online data storage and computing services at various locations around the world. In wide area applications, data can be replicated at multiple locations to serve users with lower latency and higher availability. ...

Distributed hash tables (DHTs) share storage and routing responsibility among all nodes in a peer-to-peer network. These networks have bounded path length unlike unstructured networks. Unfortunately, nodes can deny access to keys or misroute lookups. We ...