Design of a High-speed and large-capacity NAND Flash storage system based on Fiber Acquisition

Now, the quality of higher speed and larger capacity are required to the real-time data acquisition and playback storage system. This paper designs a large-scale storage system which uses the optical interface board, synchronous board, and multi storage boards. This system puts forward an advanced storage structure which has several NAND Flashes with multi-buses, forming a parallel pipeline design. By using the key technologies of bad block management and the ECC algorithm, which greatly avoids the influence of the invalid block to the storage system and reduces the probability of error data as well. It cannot only improve the storage bandwidth and capacity substantially, but also ensure the reliability of the storage system effectively. As a result, the storage system achieves the capacity of 30TB and the bandwidth of 25GBps. Also, this system uses fiber interfaces to link to the external network. The number and rate of the fiber channel can be dynamically changed in real time based on the dynamic reconfiguration technology by MIF files, which makes the storage system standard, universal, and scalable. Keywords—nand flash; high speed; large capacity; ecc; dynamic reconfiguration