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2011
Tsinghua U.

Hystor: making the best use of solid state drives in high performance storage systems

10 years 3 months ago
Hystor: making the best use of solid state drives in high performance storage systems
With the fast technical improvement, flash memory based Solid State Drives (SSDs) are becoming an important part of the computer storage hierarchy to significantly improve performance and energy efficiency. However, due to its relatively high price and low capacity, a major system research issue to address is on how to make SSDs play their most effective roles in a high-performance storage system in cost- and performance-effective ways. In this paper, we will answer several related questions with insights based on the design and implementation of a high performance hybrid storage system, called Hystor. We make the best use of SSDs in storage systems by achieving a set of optimization objectives from both system deployment and algorithm design perspectives. Hystor manages both SSDs and hard disk drives (HDDs) as one single block device with minimal changes to existing OS kernels. By monitoring I/O access patterns at runtime, Hystor can effectively identify blocks that (1) can result...
Feng Chen, David A. Koufaty, Xiaodong Zhang
Added 29 Aug 2011
Updated 29 Aug 2011
Type Journal
Year 2011
Where ICS
Authors Feng Chen, David A. Koufaty, Xiaodong Zhang
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