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2010 International Workshop on Storage Network Architecture and Parallel I/Os

3-3 May 2010

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  • [Front cover]

    Publication Year: 2010, Page(s): C1
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  • [Title page i]

    Publication Year: 2010, Page(s): i
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  • [Title page iii]

    Publication Year: 2010, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2010, Page(s): iv
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  • Table of contents

    Publication Year: 2010, Page(s):v - vi
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  • Message from the Conference Chair

    Publication Year: 2010, Page(s): vii
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  • Program Committee

    Publication Year: 2010, Page(s): viii
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  • Steering Committee

    Publication Year: 2010, Page(s): ix
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  • External reviewers

    Publication Year: 2010, Page(s): x
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  • FASTer FTL for Enterprise-Class Flash Memory SSDs

    Publication Year: 2010, Page(s):3 - 12
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1264 KB) | HTML iconHTML

    For the past decade, numerous methods have been proposed for the design of a flash translation layer (FTL), which is the core engine of flash memory drives that critically determines the performance of the drives. In this paper, we revisit one of the popular FTL schemes called FAST, and augment it with new optimization techniques aiming particularly at online transaction processing (OLTP) workload... View full abstract»

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  • Enhancing Checkpoint Performance with Staging IO and SSD

    Publication Year: 2010, Page(s):13 - 20
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (335 KB) | HTML iconHTML

    With the ever-growing size of computer clusters and applications, system failures are becoming inevitable. Checkpointing, a strategy to ensure fault tolerance, has become imperative in such an environment. However existing mechanism of checkpoint writing to parallel systems doesn't perform well with increasing job size. Solid State Disk(SSD) is attracting more and more attention due to its technic... View full abstract»

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  • NAND Flash-Based Disk Cache Using SLC/MLC Combined Flash Memory

    Publication Year: 2010, Page(s):21 - 30
    Cited by:  Papers (12)  |  Patents (82)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (285 KB) | HTML iconHTML

    Flash memory-based non-volatile cache (NVC) is emerging as an effective solution for enhancing both the performances and the energy consumptions of storage systems. In order to attain significant performance and energy gains from NVC, it would be better to use multi-level-cell (MLC) flash memories since they can provide a large NVC capacity at low cost. However, the number of available program/era... View full abstract»

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  • hashFS: Applying Hashing to Optimize File Systems for Small File Reads

    Publication Year: 2010, Page(s):33 - 42
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (218 KB) | HTML iconHTML

    Today's file systems typically need multiple disk accesses for a single read operation of a file. In the worst case, when none of the needed data is already in the cache, the metadata for each component of the file path has to be read in. Once the metadata of the file has been obtained, an additional disk access is needed to read the actual file data. For a target scenario consisting almost exclus... View full abstract»

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  • Wofs: A Distributed Network File System Supporting Fast Data Insertion and Truncation

    Publication Year: 2010, Page(s):43 - 50
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (722 KB) | HTML iconHTML

    Distributed file systems have become popular in recent years. However, they still lack functions for doing fast arbitrary data insertion and truncation. To solve the problem, we present Wofs, an object-based distributed network file system which supports fast arbitrary data insertion and truncation. Wofs splits a file into many small objects, stores these objects in remote file servers, and uses a... View full abstract»

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  • BabuDB: Fast and Efficient File System Metadata Storage

    Publication Year: 2010, Page(s):51 - 58
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (341 KB) | HTML iconHTML

    Today's distributed file system architectures scale well to large amounts of data. Their performance, however, is often limited by their metadata server. In this paper, we reconsider the database backend of the metadata server and propose a design that simplifies implementation and enhances performance.In particular, we argue that the concept of log-structured merge (LSM) trees is a better foundat... View full abstract»

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  • ZBD: Using Transparent Compression at the Block Level to Increase Storage Space Efficiency

    Publication Year: 2010, Page(s):61 - 70
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB) | HTML iconHTML

    In this work we examine how transparent compression in the I/O path can improve space efficiency for online storage. We extend the block layer with the ability to compress and decompress data as they flow between the file-system and the disk. Achieving transparent compression requires extensive metadata management for dealing with variable block sizes, dynamic block mapping, block allocation, expl... View full abstract»

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  • Parallel Reed/Solomon Coding on Multicore Processors

    Publication Year: 2010, Page(s):71 - 80
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (270 KB) | HTML iconHTML

    Cauchy Reed/Solomon is an XOR-based erasure-tolerant coding scheme, applied for reliable distributed storage, fault-tolerant memory and reconstruction of content from widely distributed data. The encoding and decoding is based on XOR operations and already well supported by microprocessors.On multicore processors, the coding procedures should also exploit parallelism to speed up coding. In this pa... View full abstract»

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  • XCo: Explicit Coordination for Preventing Congestion in Data Center Ethernet

    Publication Year: 2010, Page(s):81 - 89
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB) | HTML iconHTML

    Cluster-based storage systems increasingly use commodity communication technologies, such as Fibre Channel over Ethernet (FCoE), for accessing stored data over the network. Data is striped over multiple storage nodes, and storage traffic often shares the network with non-storage traffic. In such conditions, storage clients can experience severely degraded performance, such as TCP throughput collap... View full abstract»

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  • Author index

    Publication Year: 2010, Page(s): 91
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  • [Publisher's information]

    Publication Year: 2010, Page(s): 92
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