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 430 for “"Storage Systems"”.
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Accelerated Storage Systems
… of a large number of high-performance storage systems, arguably the most important of which are Key-Value (KV) stores. An emerging trend for achieving low latency and high throughput in this space is a solution, which utilizes both DRAM and flash by storing an efficient index for the …
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Workload-aware Efficient Storage Systems
The growing disparity in data storage and retrieval needs of modern applications is driving the proliferation of a wide variety of storage systems (e.g., key-value stores, cloud storage services, distributed filesystems, and flash cache, etc.). While extant storage systems are designed and tuned …
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Leveraging metadata in NoSQL storage systems
We present Wasef, a metadata system for NoSQL data stores. Wasef allows us to support important features such as data provenance, flexible data operations, and new administration tools. Our system has a general design that can be made compatible with most NoSQL data stores without imposing heavy …
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Modelling aquifer thermal energy storage systems
Aquifer thermal energy storage systems can decarbonise space heating and cooling, provide large-scale long-term storage and buffer the seasonal mismatch in supply and demand. In the winter, the system provides a heat source by extracting warm water from a subsurface reservoir. The extracted fluid …
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Design of Latent Thermal Energy Storage Systems
… and numerical study of time dependent storage of energy by melting a phase change material. The heating is provided along invading lines, which change from single-line invasion to tree-shaped invasion. Chapter 2 identifies the special design feature of distributing energy storage in …
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Simulating raid storage systems for performance analysis
… (RAID) provides an inexpensive, fault-tolerant storage solution using commodity hard-drives. RAID storage systems have recently surged in popularity amongst enterprise clients, as they provide economical, scalable, high-performance solutions for their storage requirements. The performance of …
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Verifying Confidentiality Under Nondeterminism for Storage Systems
Storage systems must often store confidential data for their users. It is important to ensure that confidentiality of the stored data is maintained in the presence of bugs and malicious adversaries. This thesis tackles this problem using formal verification, a technique that involves proving a …
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Fast in-memory storage systems : two aspects
… addresses two challenges relating to in-memory storage systems. The first challenge is storing and retrieving data at a rate close to the capabilities of the underlying memory system, particularly in the face of parallel accesses from multiple cores. We present Masstree, a high performance …
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Load Balancing in NetApp’s Clustered Storage Systems
… the problem of load balancing in NetApp’s storage system, this thesis aims to design and implement an algorithm that results in more evenly distributed cluster reconfigurations with minimal disturbance to clients’ workloads. I implement three different greedy algorithms to find a more …
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Thermochemical energy storage systems: modelling, analysis and design
Thermal energy storage (TES) is an advanced technology for storing thermal energy that can mitigate environmental impacts and facilitate more efficient and clean energy systems. Thermochemical TES is an emerging method with the potential for high energy density storage. Where space is limited, …
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Onshore wind farm battery energy storage systems optimisation
… study enhances the integration of Battery Energy Storage Systems (BESS) into onshore wind farms by improving efficiency, reliability, stability, and sustainability, thereby addressing significant challenges in renewable energy systems. Utilising advanced methodologies such as intelligent …
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Benefits of battery-uItracapacitor hybrid energy storage systems
… battery and battery-ultracapacitor hybrid energy storage systems (ESSs) in pulsed-load applications. It investigates and quantifies the benefits of the hybrid ESS over its battery-only counterparts. The metric for quantifying the benefits is charge efficiency - the amount of energy delivered to …
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Scalable Data Management for Object-based Storage Systems
… on large-scale High-Performance Computing (HPC) systems. Large scale distributed storage systems, in particular the object-based storage systems, face severe challenges for managing the data efficiently. Inefficient data management leads to poor I/O and storage performance in HPC applications and …
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Energy storage systems for wave energy converters and microgrids
… the leading technologies as well as the energy storage systems that are inherently part of the power take-off mechanism. The benefits of electrical energy storage systems for wave energy converters are then outlined as well as the key parameters required from them. The options for storage …
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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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The assessment of battery-ultracapacitor hybrid energy storage systems
Battery-ultracapacitors hybrid energy storage systems (ESS) could combine the high power density and high life cycle of ultracapacitors with the high energy density of batteries, which forms a promising energy storage system. In this thesis, an assessment of the benefits of the hybrid ESS relative …
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An Application-Attuned Framework for Optimizing HPC Storage Systems
… manage the increased pressure on the underlying storage systems from big data processing. Extant HPC storage systems are designed and tuned for a specific set of applications targeting a range of workload characteristics, but they lack the flexibility in adapting to the ever-changing application …
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Probabilistic Approach to Avoid Uncorrectable Bit Errors in Storage Systems
Silent data corruption in storage system poses a significant risk to the integrity ofdata. While error correction codes (ECC) can recover the majority of the errors, a non-negligible portion of them escape ECC, referred to as uncorrectable errors. As the scale of storage systems increases, the mean …
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Integrated Energy Harvesting and Storage Systems for a Sustainable Future
L'abstract è presente nell'allegato / the abstract is in the attachment
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