TY - JOUR
T1 - A comprehensive study of energy efficiency and performance of flash-based SSD
AU - Park, Seonyeong
AU - Kim, Youngjae
AU - Urgaonkar, Bhuvan
AU - Lee, Joonwon
AU - Seo, Euiseong
N1 - Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0089491 and 2010-0003453).
PY - 2011/4
Y1 - 2011/4
N2 - Use of flash memory as a storage medium is becoming popular in diverse computing environments. However, because of differences in interface, flash memory requires a hard-disk-emulation layer, called FTL (flash translation layer). Although the FTL enables flash memory storages to replace conventional hard disks, it induces significant computational and space overhead. Despite the low power consumption of flash memory, this overhead leads to significant power consumption in an overall storage system. In this paper, we analyze the characteristics of flash-based storage devices from the viewpoint of power consumption and energy efficiency by using various methodologies. First, we utilize simulation to investigate the interior operation of flash-based storage of flash-based storages. Subsequently, we measure the performance and energy efficiency of commodity flash-based SSDs by using microbenchmarks to identify the block-device level characteristics and macrobenchmarks to reveal their filesystem level characteristics.
AB - Use of flash memory as a storage medium is becoming popular in diverse computing environments. However, because of differences in interface, flash memory requires a hard-disk-emulation layer, called FTL (flash translation layer). Although the FTL enables flash memory storages to replace conventional hard disks, it induces significant computational and space overhead. Despite the low power consumption of flash memory, this overhead leads to significant power consumption in an overall storage system. In this paper, we analyze the characteristics of flash-based storage devices from the viewpoint of power consumption and energy efficiency by using various methodologies. First, we utilize simulation to investigate the interior operation of flash-based storage of flash-based storages. Subsequently, we measure the performance and energy efficiency of commodity flash-based SSDs by using microbenchmarks to identify the block-device level characteristics and macrobenchmarks to reveal their filesystem level characteristics.
UR - http://www.scopus.com/inward/record.url?scp=79952475131&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952475131&partnerID=8YFLogxK
U2 - 10.1016/j.sysarc.2011.01.005
DO - 10.1016/j.sysarc.2011.01.005
M3 - Article
AN - SCOPUS:79952475131
SN - 1383-7621
VL - 57
SP - 354
EP - 365
JO - Journal of Systems Architecture
JF - Journal of Systems Architecture
IS - 4
ER -