基于4KB数据块映射的固态硬盘算法

发布时间：2018-06-15 19:32

  本文选题：闪存(Flash + Memory)　； 参考：《电子技术应用》2017年04期

【摘要】：固态硬盘(Solid-State Drive,SSD)采用NAND型闪存(Flash Memory)为主要存储介质,闪存的读写不同于其他介质,需要闪存转换层(Flash Translation Layer,FTL)对闪存的存储空间进行管理。传统方式的映射算法随着页面(Pagesize)的逐渐扩大,在随机数据块写入的速度方面难以提升。针对这个问题,提出一种基于4KB数据块映射的闪存转换层算法,固态硬盘控制器芯片采用110nm工艺实现,集成了SATA-Ⅱ接口(3Gb/s数据传输速率),最大可以并行驱动5通道的闪存芯片。该算法结合芯片的内部资源,经过了可靠性检测,达到了预期的可靠性和读写速度。
[Abstract]:Solid-State Drive (SSD) uses NAND flash memory as the main storage medium. Flash memory is different from other media in reading and writing. Flash Translation layer (FTL) is required to manage the storage space of flash memory. With the expansion of page size, the traditional mapping algorithm is difficult to improve the speed of random data block writing. In order to solve this problem, a flash memory conversion layer algorithm based on 4KB data block mapping is proposed. The solid-state hard disk controller chip is implemented by 110nm technology, and the SATA- 鈪，

本文编号：2023297