Reliable Hydra SSD Architecture for General Purpose Controllers

Abstract

The Solid State Disks (SSDs) had almost replaced the traditional Hard Disk Drives (HDDs) in modern computing systems. SSDs possess advanced features such as low power consumption, faster random access and greater shock resistance. In general, NAND Flash memories are used for bulk storage applications. This project focus on an advanced SSD architecture, called Reliable Hydra to enhance the SSD performance. Hydra SSDs overcomes the discrepancy between slow flash memory bus and fast host interfaces like SATA, SCSI, USB etc. It uses multiple high level memory controllers to execute flash memory operation without the intervention of FTL (Flash Translation Layer). It accelerates the processing of host write requests by aggressive write buffering. Memories are subjected to bit flipping errors, so this project also considers the incorporation of matrix code for increasing the reliability and hence yield of the system. The highly sophisticated controllers for real time systems in the industrial, robotics, medical and scientific applications require high performance and reliable memories. The aim of this project is to design Reliable Hydra SSD architecture for controller applications to enhance the performance. The design architecture is to be coded in VHDL using Xilinx ISE tools.