Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 52 for “"distributed storage"”.
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Latency Tradeoffs in Distributed Storage Access
The performance of storage systems is central to handling the huge amount of data being generated from a variety of sources including scientific experiments, social media, crowdsourcing, and from an increasing variety of cyber-physical systems. The emerging high-speed storage technologies enable …
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On error correcting codes for distributed storage
… popular directions of error correcting codes for distributed storage are codes with additional recovery or regenerating properties. First we have codes for additional recovery properties. Codewords in array format find applications in disk storage where columns are stored on different disks in …
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NOHOST : a new storage architecture for distributed storage systems
This thesis introduces a new NAND flash-based storage architecture, NOHOST, for distributed storage systems. A conventional flash-based storage system is composed of a number of high-performance x86 Xeon servers, and each server hosts 10 to 30 solid state drives (SSDs) that use NAND flash memory. …
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Harnessing metadata characteristics for efficient deduplication in distributed storage Systems
As storage capacity requirements grow, storage systems are becoming distributed, and that distribution poses a challenge for space savings processes. In this thesis, I design and implement a mechanism for storing only a single instance of duplicated data within a distributed storage system which …
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Linear Exact Repair Schemes for Distributed Storage and Secure Distributed Matrix Multiplication
… or circumventing unavailable servers of a distributed network in the context of distributed storage and secure distributed matrix multiplication. We develop the (Λ, Γ, W, ⊙)-exact repair scheme framework for discussing both of these contexts and develop a multitude of explicit exact repair …
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MODBASE : a SciDB-powered system for large-scale distributed storage and analysis of MODIS earth remote sensing data
MODBASE, a collection of tools and practices built around the open source SciDB multidimensional data management and analytics software system, provides the Earth Science community with a powerful foundation for direct, ad-hoc analysis of large volumes of Level-1B data produced by the NASA Moderate …
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Iterative Algebraic Decoding of Codes Defined on Graphs
… suit the error statistics of the channel or storage device. Sparsely Integrated Interleaving groups data nodes in a distributed storage system into subgroups. A data node can belong to several subgroups. A localized algebraic iterative decoding algorithm is used to decode across subgroups to …
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Making medical records more resilient
… RHIOs create sustainable business models. 3) Storage companies should consider developing distributed storage solutions based on Distributed Hash Table (DHT) technology for medical record storage. Distributed storage would alleviate public concerns over privacy with centralized storage of …
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New directions for remote data integrity checking of cloud storage
Cloud storage services allow data owners to outsource their data, and thus reduce their workload and cost in data storage and management. However, most data owners today are still reluctant to outsource their data to the cloud storage providers (CSP), simply because they do not trust the CSPs, and …
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Methods to Improve Applicability and Efficiency of Distributed Data-Centric Compute Frameworks
… phones, sensors and other connected devices. Distributed storage and data-centric compute frameworks have been invented to store and analyze these large datasets. This dissertation focuses on extending the applicability and improving the efficiency of distributed data-centric compute …
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Hyfs: design and implementation of a reliable file system
<p>Building reliable data storage systems is crucial to any commercial or scientific applications. Modern storage systems are complicated, and they are comprised of many components, from hardware to software. Problems may occur to any component of storage systems and cause data loss. When this kind …
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Repairing Cartesian Codes with Linear Exact Repair Schemes
… when using a Cartesian code,in the context of a distributed storage system. Particularly, we develop a scheme withconsiderations to minimize the associated bandwidth and maximize the associateddimension. The problem of recovering a missing node's data exactly in a distributedstorage system is …
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What broke where for distributed and parallel applications — a whodunit story
… of performance problems in today's large-scale distributed and parallel systems is a difficult task. These large distributed and parallel systems are composed of various complex software and hardware components. When the system experiences some performance or correctness problem, developers …
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Linear algebraic approaches to coding for multiple unicast networks
… especially with the occurrences in models of distributed storage and content delivery systems. In this thesis, we explore the ideas of linear algebraic techniques and algorithms in the multiple unicast scenarios. In particular, we are interested in wireline networks that are representable as …
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Personal Internetworked Notary and Guardian supported by distributed data storage
… a single server. The problem with centralized storage is that it creates a single point of failure which has the potential for problems. I propose a distributed storage system that is similar to RAID 5 system. This Distributed RAID System provides reads at approximately 1MB/sec. Writes however …
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Parallel and Distributed Just-in-Time Shell Script Compilation
… half, I explore the design and implementation of Distributed-PaSh, a shell that can utilize distributed computing resources and easily interface with distributed storage systems to efficiently execute data-processing pipelines. Distributed-PaSh analyzes the dataflow graph of a given script to …
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On the use of locality aware distributed hash tables for homology searches over voluminous biological sequence data
… thesis proposes a scalable and similarity-aware distributed storage framework, Mendel, that enables retrieval of biologically significant DNA and protein alignments against a voluminous genomic sequence database. Mendel fragments the sequence data and generates an inverted-index, which is then …
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Low-overhead distributed transaction coordination
… infrastructure for building reliable distributed storage applications. Granola provides a strong consistency model, while significantly reducing transaction coordination overhead. Granola supports general atomic operations, enabling it to be used as a platform on which to build various …
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