Design Of A High Performance And High Availability Distributed Storage System
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Design Of A High Performance And High Availability Distributed Storage System
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Author : Li Ou
language : en
Publisher:
Release Date : 2006
Design Of A High Performance And High Availability Distributed Storage System written by Li Ou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Computer storage devices categories.
Cluster has become one of the most popular platforms for high-performance computing. As in traditional parallel computing systems, the I/O sub-system is a bottleneck to the overall system performance. One solution to alleviate the I/O bottleneck is to deploy a distributed storage system, which utilizes the aggregate bandwidth and capability of existing I/O resources on each cluster node, to provide high performance and scalable storage service for cluster computing platforms. The research of this dissertation concentrated on designing a high performance and high availability distributed storage system to improve I/O system performance. The system provided high performance by efficiently managing the aggregate cache space of a multi-level hierarchy, organizing file system data servers and iSCSI storage targets into a two level hierarchy with striping/parity techniques, and exploiting the potential of high speed network to reduce the RDMA registration cost. The system achieved high availability by overcoming single point of failure of metadata servers with a symmetric active/active metadata service. With a combination of various research approaches, including analysis using mathematical models, simulation using real world traces, prototype implementations of real systems running on Linux platforms, and experiments using real workloads, both high performance and high availability of a distributed storage system were achieved. The experimental results indicated that the average I/O response time was improved by up to 46% to 53% for various workloads, and the availability was increased to 99.98%; with less than 10% performance trade-off.
High Availability
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Author : Floyd Piedad
language : en
Publisher: Prentice Hall Professional
Release Date : 2001
High Availability written by Floyd Piedad and has been published by Prentice Hall Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Business & Economics categories.
A best practices guide tothe people and process issues associated with maximizing application availability. Focus is on how enterprises can design systems that are easier to maintain.
Designing High Performance Erasure Coding Schemes For Next Generation Storage Systems
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Author : Haiyang Shi (Ph. D. in computer science)
language : en
Publisher:
Release Date : 2020
Designing High Performance Erasure Coding Schemes For Next Generation Storage Systems written by Haiyang Shi (Ph. D. in computer science) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Computer science categories.
Replication has been a cornerstone of reliable distributed storage systems for years. Replicating data at multiple locations in the system maintains sufficient redundancy to tolerate individual failures. However, the exploding volume and speed of data growth let researchers and engineers think about using storage-efficient fault tolerance mechanisms to replace replication in designing or re-designing reliable distributed storage systems. One promising alternative of replication is Erasure Coding (EC), which trades off extra computation for high reliability and availability at a prominently low storage overhead. Therefore, many existing distributed storage systems (e.g., HDFS 3.x, Ceph, QFS, Google Colossus, Facebook f4, and Baidu Atlas) have started to adopt EC to achieve storage-efficient fault tolerance. However, as EC introduces extra calculations into systems, there are several crucial challenges to think through for exploiting EC. Such as how to leverage heterogeneous EC-capable hardware (e.g., CPUs, General-Purpose Graphics Processing Units (GPGPUs), Field-Programmable Gate Arrays (FPGAs), and Smart Network Interface Cards (SmartNICs)) to accelerate EC computation and bring emergent devices and technologies into the pictures for designing high-performance erasure-coded distributed storage systems. In this dissertation, we propose Mint-EC, a high-performance EC framework to address the aforementioned research challenges. Mint-EC includes three major pillars: 1) a multi-rail EC library that enables upper-layer applications to leverage heterogeneous EC-capable hardware devices to perform EC operations simultaneously and introduces unified APIs to facilitate overlapping opportunities between computation and communication, 2) a set of coherent in-network EC primitives that can be easily integrated into existing state-of-the-art EC schemes and utilized in designing advanced EC schemes to fully leverage the advantages of the coherent in-network EC capabilities on commodity SmartNICs, and, 3) a tripartite graph based EC paradigm that is able to tackle the limitations of current-generation EC offload schemes, bring more parallelism and overlapping, and fully utilize networked resources. To demonstrate the potential performance gains of the proposed designs, we co-design commonly-used distributed storage systems (i.e., HDFS and Memcached) with our proposed designs, and thoroughly evaluate the co-designed systems with Hadoop benchmarks and Yahoo! Cloud Serving Benchmark (YCSB) on in-house and production-scale HPC clusters. The evaluations illustrate that erasure-coded distributed storage systems enhanced with the proposed designs obtain significant performance improvement.
Blueprints For High Availability
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Author : Evan Marcus
language : en
Publisher:
Release Date : 2000-02-14
Blueprints For High Availability written by Evan Marcus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-02-14 with Business & Economics categories.
"Rely on this book for information on the technologies and methods you'll need to design and implement high-availability systems...It will help you transform the vision of always-on networks into a reality."-Dr. Eric Schmidt, Chairman and CEO, Novell Corporation Your system will crash! The reason could be something as complex as network congestion or something as mundane as an operating system fault. The good news is that there are steps you can take to maximize your system availability and prevent serious downtime. This authoritative book will provide you with the tools to deploy a system with confidence. The authors guide you through the building of a network that runs with high availability, resiliency, and predictability. They clearly show you how to assess the elements of a system that can fail, select the appropriate level of reliability, and provide steps for designing, implementing, and testing your solution to reduce downtime to a minimum. All the while, they help you determine how much you can afford to spend by balancing costs and benefits. This book of practical, hands-on blueprints: * Examines what can go wrong with the various components of your system * Provides twenty key system design principles for attaining resilience and high availability * Discusses how to arrange disks and disk arrays for protection against hardware failures * Looks at failovers, the software that manages them, and sorts through the myriad of different failover configurations * Provides techniques for improving network reliability and redundancy * Reviews techniques for replicating data and applications to other systems across a network * Offers guidance on application recovery * Examines Disaster Recovery
Designing A New Class Of Distributed Systems
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Author : Rao Mikkilineni
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-11-02
Designing A New Class Of Distributed Systems written by Rao Mikkilineni and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-02 with Computers categories.
Designing a New Class of Distributed Systems closely examines the Distributed Intelligent Managed Element (DIME) Computing Model, a new model for distributed systems, and provides a guide to implementing Distributed Managed Workflows with High Reliability, Availability, Performance and Security. The book also explores the viability of self-optimizing, self-monitoring autonomous DIME-based computing systems. Designing a New Class of Distributed Systems is designed for practitioners as a reference guide for innovative distributed systems design. Researchers working in a related field will also find this book valuable.
Protocol And Situation Aware Distributed Storage Systems
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Author : Ramnatthan Alagappan
language : en
Publisher:
Release Date : 2019
Protocol And Situation Aware Distributed Storage Systems written by Ramnatthan Alagappan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
We are dependent upon data in many aspects of our lives. Much of this data is stored and managed by distributed storage systems that run in data centers, powering many modern applications such as e-commerce, photo sharing, video streaming, search, social networking, messaging, collaborative editing, and even health-care and financial services. A distributed storage system stores copies of a piece of data on many nodes for fault-tolerance: even when a few nodes fail, the system can still provide access to data. Each of these nodes depends upon a local storage stack to safely store and manage user data. The local storage stack is complex, consisting of many hardware and software components. Due to this complexity, the storage layer is a place for many potential problems to arise. This dissertation examines the reliability and performance challenges that arise the interaction points between a distributed system and the local storage stack. In the first part of this thesis, we study how distributed storage systems react to storage faults: cases where the storage device may return corrupted data or errors. We focus on replicated state machine systems, an important class of distributed systems. We find that none of the existing approaches used in current systems can safely handle storage faults, leading to data loss and unavailability. Using the insights gained in our study, we design corruption-tolerant replication (CTRL), a protocol-aware recovery approach for RSM systems. CTRL exploits protocol-specific knowledge of how RSM systems operate, to ensure safety and high availability in the presence of storage faults without impacting performance. In the second part, we study the performance and reliability properties of replication protocols used by distributed systems. We find there exists a dichotomy with respect to how and where current approaches store system state. One approach writes data to the storage stack synchronously, whereas the other buffers the data in volatile memory. The choice of whether data is written synchronously to the storage device or not greatly influences the system's robustness to crash failures and its performance. We show that existing approaches either provide robustness to crashes or performance, but not both. Thus, we introduce situation-aware updates and crash recovery, a dynamic protocol that, depending upon the situation, writes either synchronously or asynchronously to the storage devices, achieving both strong reliability and high performance. In the final part of this thesis, we study the effects of file-system crash behaviors in distributed storage systems. We build protocol-aware crash explorer or PACE, a tool that can model and reason about file-system crash behaviors in distributed systems under a special correlated crash failure scenario. Our study reveals that the correctness of update and recovery protocols of many distributed systems hinges upon how the local file-system state is updated by each replica. We perform a detailed analysis of the vulnerabilities, showing their serious consequences and prevalence on commonly used file systems. We finally point to possible solutions to the problems discovered.
Storage Systems
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Author : Alexander Thomasian
language : en
Publisher: Academic Press
Release Date : 2021-10-13
Storage Systems written by Alexander Thomasian and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-13 with Science categories.
Storage Systems: Organization, Performance, Coding, Reliability and Their Data Processing was motivated by the 1988 Redundant Array of Inexpensive/Independent Disks proposal to replace large form factor mainframe disks with an array of commodity disks. Disk loads are balanced by striping data into strips—with one strip per disk— and storage reliability is enhanced via replication or erasure coding, which at best dedicates k strips per stripe to tolerate k disk failures. Flash memories have resulted in a paradigm shift with Solid State Drives (SSDs) replacing Hard Disk Drives (HDDs) for high performance applications. RAID and Flash have resulted in the emergence of new storage companies, namely EMC, NetApp, SanDisk, and Purestorage, and a multibillion-dollar storage market. Key new conferences and publications are reviewed in this book.The goal of the book is to expose students, researchers, and IT professionals to the more important developments in storage systems, while covering the evolution of storage technologies, traditional and novel databases, and novel sources of data. We describe several prototypes: FAWN at CMU, RAMCloud at Stanford, and Lightstore at MIT; Oracle's Exadata, AWS' Aurora, Alibaba's PolarDB, Fungible Data Center; and author's paper designs for cloud storage, namely heterogeneous disk arrays and hierarchical RAID. Surveys storage technologies and lists sources of data: measurements, text, audio, images, and video Familiarizes with paradigms to improve performance: caching, prefetching, log-structured file systems, and merge-trees (LSMs) Describes RAID organizations and analyzes their performance and reliability Conserves storage via data compression, deduplication, compaction, and secures data via encryption Specifies implications of storage technologies on performance and power consumption Exemplifies database parallelism for big data, analytics, deep learning via multicore CPUs, GPUs, FPGAs, and ASICs, e.g., Google's Tensor Processing Units
Data Storage Architectures And Technologies
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Author : Jiwu Shu
language : en
Publisher: Springer
Release Date : 2024-09-19
Data Storage Architectures And Technologies written by Jiwu Shu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-19 with Computers categories.
Data is a core asset in the current development of information technology and needs to be stored efficiently and reliably to serve many important real-world applications such as the Internet, big data, artificial intelligence, and high-performance computing. Generations of researchers and practitioners have continued to innovate the design of storage systems to achieve the goals of high performance, ease of use, and high reliability. This textbook provides a thorough and comprehensive introduction to the field of data storage. With 14 chapters, the book not only covers the basics of storage devices, storage arrays, storage protocols, key-value stores, file systems, network storage architecture, distributed storage systems, storage reliability, storage security, and data protection, but also provides in-depth discussions on advanced topics such as storage maintenance, storage solutions, and storage technology trends and developments (e.g., in-storage computing, persistent memory system, blockchain storage, and in-network storage system). For each section, the authors have attempted to provide the latest current academic and industry research progress that will help readers deepen their understanding and application of basic data storage concepts. This textbook is ideal for storage courses targeting upper-level undergraduate or graduate students in computer science and related disciplines. It also serves as a valuable reference for technical professionals.
Design Of A High Performance High Availability Distributed File System
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Author : Chetan Ahuja
language : en
Publisher:
Release Date : 2001
Design Of A High Performance High Availability Distributed File System written by Chetan Ahuja and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Distributed databases categories.
Building A Columnar Database On Ramcloud
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Author : Christian Tinnefeld
language : en
Publisher: Springer
Release Date : 2015-07-07
Building A Columnar Database On Ramcloud written by Christian Tinnefeld and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-07 with Computers categories.
This book examines the field of parallel database management systems and illustrates the great variety of solutions based on a shared-storage or a shared-nothing architecture. Constantly dropping memory prices and the desire to operate with low-latency responses on large sets of data paved the way for main memory-based parallel database management systems. However, this area is currently dominated by the shared-nothing approach in order to preserve the in-memory performance advantage by processing data locally on each server. The main argument this book makes is that such an unilateral development will cease due to the combination of the following three trends: a) Today’s network technology features remote direct memory access (RDMA) and narrows the performance gap between accessing main memory on a server and of a remote server to and even below a single order of magnitude. b) Modern storage systems scale gracefully, are elastic and provide high-availability. c) A modern storage system such as Stanford’s RAM Cloud even keeps all data resident in the main memory. Exploiting these characteristics in the context of a main memory-based parallel database management system is desirable. The book demonstrates that the advent of RDMA-enabled network technology makes the creation of a parallel main memory DBMS based on a shared-storage approach feasible.