PIFCard: A High Performance Flash Card Matching the Parallelism and Latency of NAND Flash with Those of PCI-E Interface
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 features.First, it adopts the PCI-E 2.0 x8 interface to achieve high concurrency.Second, it employs a novel Page to Block mapping Flash Translation Layer (PBFTL) to reduce response time.Third, the card leverages the out-of-order flash controller to exploit the die-level interleaving.We implement the PIFCard (PCI-E Interface Flash Card) on FPGA.Experimental results demonstrate that, the PIFCard achieves 3GB/s and 2GB/s in term of bandwidth for reading and writing, respectively.
big data flash memory FTL the die-level interleaving
Yang Ou Nong Xiao Fang Liu
State Key Laboratory of High Performance Computing, National University of Defense Technology Changsha, China
国际会议
昆明
英文
265-274
2014-05-01（万方平台首次上网日期，不代表论文的发表时间）