Compound Mapping and Filter Algorithm for Hybrid SSD Structure

Abstract

With the recent development of byte-unit non-volatile random access memory (RAM), various methods utilizing quad level cell (QLC) not-AND (NAND) flash memory with non-volatile RAM have been proposed. However, tests have shown that these hybrid structures lead to a reduction in the performance of a hybrid solid state disk (SSD) owing to issues regarding space efficiency. This study proposes a compound address method and filter algorithm suitable for the next generation of NAND flash, called hybrid storage media, where QLCs and phase-change memory (PCM) are used together. The filter-mapping algorithm includes a management method that stores data in phase-change memory or flash memory according to the next command, which is accessed when a write command that is half or less than half a page in length is received from the file system. Tests have shown that the compound mapping and filter algorithm reduces the wasted pages by more than half and the number of merge operations is also significantly decreased. This leads to a decrease in the number of delete operations and improves the overall processing speed of the hardware.

Authors and Affiliations

Jin-Young Kim, Se Jin Kwon

Keywords

Related Articles

Estimating Evapotranspiration using Machine Learning Techniques

The measurement of evapotranspiration is the most important factor in irrigation scheduling. Evapotranspiration means loss of water from the surface of plant and soil. Evaporation parameters are being used in studying wa...

Using FDD for Small Project: An Empirical Case Study

Empirical analysis evaluates the proposed system via practical experience and reveals its pros and cons. Such type of evaluation is one of the widely used validation approach in software engineering. Conventional softwar...

A Novel DDoS Floods Detection and Testing Approaches for Network Traffic based on Linux Techniques

In Today’s Digital World, the continuous interruption of users has affected Web Servers (WSVRs), through Distributed Denial-of-Service (DDoS) attacks. These attacks always remain a massive warning to the World Wide Web (...

Synthetic Loads Analysis of Directed Acyclic Graphs for Scheduling Tasks

Graphs are structures used in different areas of scientific research, for the ease they have to represent different models of real life. There is a great variety of algorithms that build graphs with very dissimilar chara...

A new optimization based image segmentation method by particle swarm optimization

 This paper proposes a new multilevel thresholding method segmenting images based on particle swarm optimization (PSO). In the proposed method, the thresholding problem is treated as an optimization problem, and sol...

Download PDF file
  • EP ID EP550266
  • DOI 10.14569/IJACSA.2019.0100414
  • Views 101
  • Downloads 0

How To Cite

Jin-Young Kim, Se Jin Kwon (2019). Compound Mapping and Filter Algorithm for Hybrid SSD Structure. International Journal of Advanced Computer Science & Applications, 10(4), 127-132. https://europub.co.uk/articles/-A-550266