RAID: High-Performance, Reliable Secondary Storage

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RAID: High-Performance, Reliable Secondary Storage (1994)

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by Peter M. Chen , Edward K. Lee , Garth A. Gibson , Randy H. Katz , David A. Patterson

Venue:	ACM COMPUTING SURVEYS
Citations:	348 - 5 self

BibTeX

@ARTICLE{Chen94raid:high-performance,,
    author = {Peter M. Chen and Edward K. Lee and Garth A. Gibson and Randy H. Katz and David A. Patterson},
    title = {RAID: High-Performance, Reliable Secondary Storage},
    journal = {ACM COMPUTING SURVEYS},
    year = {1994},
    volume = {26},
    pages = {145--185}
}

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Abstract

Disk arrays were proposed in the 1980s as a way to use parallelism between multiple disks to improve aggregate I/O performance. Today they appear in the product lines of most major computer manufacturers. This paper gives a comprehensive overview of disk arrays and provides a framework in which to organize current and future work. The paper first introduces disk technology and reviews the driving forces that have popularized disk arrays: performance and reliability. It then discusses the two architectural techniques used in disk arrays: striping across multiple disks to improve performance and redundancy to improve reliability. Next, the paper describes seven disk array architectures, called RAID (Redundant Arrays of Inexpensive Disks) levels 0-6 and compares their performance, cost, and reliability. It goes on to discuss advanced research and implementation topics such as refining the basic RAID levels to improve performance and designing algorithms to maintain data consistency. Last, the paper describes six disk array prototypes or products and discusses future opportunities for research. The paper includes an annotated bibliography of disk array-related literature.

Keyphrases

disk array reliable secondary storage multiple disk disk array prototype future work future opportunity implementation topic redundant array annotated bibliography architectural technique inexpensive disk advanced research disk array architecture data consistency major computer manufacturer basic raid level product line disk array-related literature comprehensive overview paper first introduces disk technology driving force

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