Petabyte and Exabyte storage systems are a reality. These systems introduce unique challenges to the systems architect because of their size and unique requirements. In this thesis, I suggest that access patterns to very large storage systems are long-tailed distributions. I explore three live systems and show that each of them has a very strong long-tailed access distribution. Based on this fi...

More and more mobile equipment use independent filesystem to expand their capacity, however the mobile storage systems often perform undesirable when plenty of users participate in these systems. In this paper, we present a novel mobile storage framework, which is aiming to provide convenient mechanism for mobile equipments. In the proposed storage framework, several optimization mechanisms are...

Despite their limited put/get interface, simple hosted storage services are becoming very popular. Many companies and individuals are using them to store and backup data. Recent work has demonstrated that it is even possible to build file systems on top of such abstractions. However, the available API lacks some features that could prove beneficiary in building distributed storage systems on to...

This paper describes service portability for a private cloud deployment, including a detailed case study about Cloud Storage and bioinformatics services developed as part of the Cloud Computing Adoption Framework (CCAF). Our Cloud Storage design and deployment is based on Storage Area Network (SAN) technologies, details of which include functionalities, technical implementation, architecture an...

Evaluation of the reliability parameters in micro-grids based on renewable energy sources is one of the main problems that are investigated in this paper. Renewable energy sources such as solar and wind energy, battery as an energy storage system and fuel cell as a backup system are used to provide power to the electrical loads of the micro-grid. Loads in the micro-grid consist of interruptible...

Data reliability is critical to many data sensitive applications, especially to the emerging storage over the network. In this paper, we have proposed a method to perform remote online data backup to improve reliability for iSCSI based networked storage systems. The basic idea is to apply the traditional RAID technology to iSCSI environment. Our first technique is to improve the reliability by ...

<span>This work introduces a power management scheme based on the fuzzy logic controller (FLC) to manage flows in small and local distributed generation system. The stand-alone microgrid (MG) includes wind PV generators as main sources. backup system battery storage (BSS) diesel generator (DG) combined with supercapacitor (SC). different energy sources are interconnected through DC bus. M...

The chunks of data that are generated after the backup are physically distributed after deduplication in backup system, which creates a problem know as fragmentation. Basically fragmentation basically comes into sparse and outof-order containers. The sparse container adversely affect the performance while restoring the database and garbage collection effectively , while the out-of-order contain...

In recent years, cloud storage systems have become very popular due to their good scalability and high availability. However, these storage systems provide limited transactional capabilities, which makes developing applications that use these systems substantially more difficult than developing applications that use a traditional SQL-based relational database management systems (DBMS). There ha...

With the rapidly increasing amounts of data produced worldwide, networked and multi-user storage systems are becoming very popular. However, concerns over data security still prevent many users from migrating data to remote storage. The conventional solution is to encrypt the data before it leaves the owner’s premises. While sound from a security perspective, this approach prevents the storage ...