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The era of big data requires a high-bandwidth, high-concurrency architecture of storage systems. NAND flash memory acting as a replacement candidate of hard disk drives is popularly used in enterprise class storage systems due to its lower power consumption, faster random access, and higher shock resistance. To this end, we propose a high performance NAND flash-based card. The card presents three...
NAND flash has some inherent peculiarities which increase the access delay seriously. We propose the Page to Block mapping Flash Translation Layer (PBFTL). Solid State Drives (SSDs) adopting PBFTL have lower response time. To achieve low response time for read requests, PBFTL adopts hybrid-level mapping scheme. But, hybrid-level FTL behaves awkwardly for write due to the high overhead of garbage collection...
Driven by data-intensive applications, flash-based solid state drives (SSDs) have become increasingly popular in enterprise-scale storage systems. Flash memory exhibits inherent parallelism. However, existing solid state drives have not fully exploited this superiority. We propose P3Stor, a parallel solid state storage architecture that makes full use of flash memory by utilizing module- and bus-level...
The development of flash memory drives flash based SSDs to enter into enterprise-scale storage systems. As the kernel of SSD, flash translation layer (FTL) attracts many attentions. Generally, there are two types of FTLs according to the granularity of address mapping: block-level and page-level mapping FTLs. We focus on the latter one. Typically, page-level mapping scheme must employ a cache to alleviate...
The development of flash memory drives flash based SSD to enter into large-scale storage systems. The performance of SSD is highly dependent on the design of FTL. For the last few years, several FTL schemes have been proposed. Such as FAST, BAST, SAST etc. we design a novel FTL based on page-level mapping scheme. Since one of the major troubles of page-level mapping FTL is the unendurable memory consuming...
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