Geometries Analyzing Algorithms of Solid-State Drives in FreeBSD

• Main Authors: BING-SIN JHUANG, 莊秉鑫
• Other Authors: Chin-Hsien Wu
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/55mwwq

碩士 === 國立臺灣科技大學 === 電子工程系 === 107 === Nowadays, Solid-state disk (SSD) has become the best choice of storage in smart phones, Desktop Computers, Notebooks, and various embedded systems because of its brilliant advantages compared with Hard Disk Drive (HDD) such as small size, low-power consumption, high resistance of physical shock, silence, quicker access time, lower latency and non-volatile feature. Furthermore, cost per capacity of SSD are highly reduced by advanced manufacturing process technology. Therefore, more and more storage requirements of data center, applications of Network Attached Storage(NAS) and high-performing computing(HPC) systems begin to choose SSD as their best storage to achieve high-speed network performance and high I/O performance. For the applications as mentioned above, algorithm to optimize I/O schedule in system with various SSD becomes an important issue. Before we scheduling the I/O, we must know Geometries of each SSD in system. In this thesis, we propose a Geometries Analyzing Algorithms of Solid-State Drives in FreeBSD to analyze the geometries of different SSD in FreeBSD. Afterward, we can use these geometries to optimize the I/O scheduler in data center, NAS applications and HPC systems. Also, we can provide consumers an information for choosing SSD in market.