HPDA: A Hybrid Parity-Based Disk Array for Enhanced Performance and Reliability

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Provided by: Institute of Electrical & Electronic Engineers
Topic: Storage
Format: PDF
Single flash-based Solid State Drive (SSD) can not satisfy the capacity, performance and reliability requirements of a modern storage system supporting increasingly demanding data-intensive computing applications. Applying RAID schemes to SSDs to meet these requirements, while a logical and viable solution faces many challenges. In this paper, the authors propose a Hybrid Parity-based Disk Array (HPDA) architecture, HPDA, which combines a group of SSDs and two Hard Disk Drives (HDDs) to improve the performance and reliability of SSD-based storage systems.
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