A design of DDR-1 solid state drive using PCI-e interface

Abstract

In this paper, we designed and analyzed high-end DRAM-based SSD storage using DDR-1 memory and PCI-e interface. SSD is a storage device that uses DRAM or NAND Flash as primary storage media. Since the SSD stores and accesses data directly to memory chips, which results in storage speeds far greater than conventional magnetic storage devices(HDD). Proposed SSD architecture has performance of high speed data processing duo to use multiple RAM disks as primary storage and PCI-e interface bus as communication path of RAM disks. We constructed experimental system with UNIX, Windows/Linux server, SAN Switch, and Ethernet Switch and measured IOPS and bandwidth using IOmeter. In experimental results, it has been shown that IO performance and bandwidth of the DDR-1 SSD is better than those of the HDD and Flash-based SSD