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Multicore SSD Architecture

[ F2FS based Multicore SSD ]

     - Meta, directory, node, cold

     - GC core, FTL core

     - Self-regulating GC

       (foreground, background)

     - Log file structure

I/O Parallelism Optimization (Chip-level parallelism)

[ I/O Parallelism ]

     - Idle/busy status

     - Channel/chip/die/plane parallelism

     - Performance optimization

     - Durability enhancement

DRAM+NVRAM SSD

[ New Computer Architecture ]

     - L1/L2/L3 cache: L3 PRAM/MRAM/FeRAM

     - Hybird main memory: DRAM+NVRAM

     - PCIe SSD: PCIe slot 

     - Secondary memory: NAND/3D Xpoint/PCM

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