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首页> 外文会议>International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA'03) v.2; 20030623-20030626; Las Vegas,NV; US >A Stripped Mirroring RAID architecture with Distributed Sparing
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A Stripped Mirroring RAID architecture with Distributed Sparing

机译：具有分布式备用的条带化镜像RAID体系结构

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摘要

Redundant arrays of independent disks (RAID) have been widely used for providing a mass storage with high performance and reliability. Among RAID architectures, RAID-1 and RAID-5 are most popular. But RAID-1 means excessive redundancy, and RAID-5 shows poor write performance. Recently SMDA (Stripped Mirroring Disk Array) was proposed to overcome small-write problem of disk array. SMDA stores the original data in two ways, one on a single disk and the other on a plurality of disks in RAID-0 by stripping [2]. In this paper, we propose a new disk array architecture, called Distributed Sparing-Stripped Mirroring Disk Array (ds-SMDA), that adds distributed on-line spares to SMDA. With ds-SMDA, we can increase parallelism of small-size read and write operations in the normal state. And ds-SMDA enables us to reduce seek time during the recovery time. Moreover, we can recover from any double disk failures.
机译：独立磁盘冗余阵列（RAID）已被广泛用于提供具有高性能和可靠性的大容量存储。在RAID体系结构中，RAID-1和RAID-5最为流行。但是RAID-1意味着过多的冗余，而RAID-5显示的写入性能很差。最近，提出了SMDA（剥离镜像磁盘阵列）来克服磁盘阵列的小写问题。 SMDA通过剥离[2]，以两种方式存储原始数据，一种在RAID-0中存储在单个磁盘上，另一种在多个磁盘上。在本文中，我们提出了一种新的磁盘阵列体系结构，称为分布式稀疏剥离镜像磁盘阵列（ds-SMDA），该体系结构将分布式在线备用磁盘添加到SMDA。使用ds-SMDA，我们可以在正常状态下提高小型读写操作的并行性。 ds-SMDA使我们能够缩短恢复时间。此外，我们可以从任何双磁盘故障中恢复。

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