Efficient Metadata Management Scheme in NAND Flash based Storage Device
نویسندگان
چکیده
منابع مشابه
Sampling-based Metadata Management for Flash Storage
Existing garbage collection algorithms for the flashbased storage use score-based heuristics to select victim blocks for reclaiming free space and wear leveling. The score for a block is estimated using metadata information such as age, utilization, and erase count. To quickly find a victim block, these algorithms need to maintain a priority queue in the SRAM of a flashbased storage controller....
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Recently, NAND flash memory-based storage systems (NFMS) are widely used in various applications. These systems are composed with many NAND Flash Memories (NFMs) and use multi-level parallelism in a concurrent or interleaving manner between NFMs to improve a performance. The multi-level parallelism is divided into three parts such as channel-level, way-level and plane-level. However, most of th...
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NAND-flash storage is a preferred method to accelerate I/O intensive applications because of its high throughput and fast random-read performance. However, the high cost per GB of flash, relative to magnetic disks, prevents large datacenters from moving their data entirely onto the flash media. Normally, limited amounts of flash is used “in front of” magnetic storage to speed up accesses to the...
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ژورنال
عنوان ژورنال: Journal of Digital Contents Society
سال: 2015
ISSN: 1598-2009
DOI: 10.9728/dcs.2015.16.4.535