NAND闪存固态硬盘空间环境效应分析及测试系统设计  

Space environment analysis and testing system design for NAND-based solid state drives

作　　者：李鹏[1,2] 刘凯 辛敏成[1] 赵楠 邹田骥[1,2] 张海涛 LI Peng;LIU Kai;XIN Mincheng;ZHAO Nan;ZOU Tianji;ZHANG Haitao(Technology &Engineering Center for Space Utilization, Chinese Academy of Sciences, Beijing 100094, China;University of Chinese Academy of Sciences, Beijing 100049, China;Beijing UCAS Space Technology Co. Ltd , Beijing 100190, China)

机构地区：[1]中国科学院空间应用工程与技术中心,北京100094 [2]中国科学院大学,北京100049 [3]北京国科环宇空间技术有限公司,北京100190

出　　处：《航天器环境工程》2018年第6期581-587,共7页Spacecraft Environment Engineering

基　　金：国家自然科学基金项目(编号:61703391);中国科学院青年创新促进专项基金项目(编号:CASYI2014135);中国科学院空间应用工程与技术中心前瞻性课题(编号:CSU-QZKT-201714)

摘　　要：文章针对航天领域广泛应用的固态硬盘(SSD)性能变化规律未知、可靠性数据缺乏的问题,以高效费比地使用低等级货架固态硬盘执行空间应用任务为需求背景,分析了NAND闪存SSD的空间环境效应,设计了一套可覆盖热循环、热真空、空间辐射等典型空间环境应力的固态硬盘测试系统。基于开源Iometer和SSDTS测试软件,实现参数自动监测,数据采集、处理、图形化显示、存储、回放等功能,可监测批量固态硬盘SATA接口供电电压、电流、平均读/写速率、实时读/写速率、平均读/写响应时间、写入数据量等性能参数,并定期检查记录SSD的磁盘容量情况,还能调节测试策略(读写比例、数据包大小、访问模式),控制供电电压。In view of the lack of knowledge of the variation rules of the performance characteristics and the reliability information of the widely-used SSD,this paper analyzes the effects of the space environment on the commercial off-the-shelf(COTS)SSD,and develops an SSD testing apparatus,capable of providing typical space environments,such as the thermal cycling,the thermal vacuum,and the space radiation.An SSDTS software based on the open-source software Iometer is used to realize the function of the automatic parameter monitoring,and the data acquisition,the processing,the graphical display,the storage and the layback.The integrated test system can monitor the performance characteristics for a batch of SSDs,including the voltage and the current at the SATA interface,the average&real-time R/W speed and response time,as well as the amount of the written data.It can not only inspect and record the disk capacity periodically,but also adjust the test strategy(the R/W proportion,the data packet size,and the assessment patterns),and control the power supply voltage.

关 键 词：固态硬盘 空间环境效应 地面模拟试验 可靠性 

分 类 号：TP333.3[自动化与计算机技术—计算机系统结构] V416.8[自动化与计算机技术—计算机科学与技术]