On the management of multichannel architectures of solid-state disks

Li-Pin Chang*, Yi Hsun Huang, Chen Yi Wen

*此作品的通信作者

研究成果: Conference contribution同行評審

5 引文 斯高帕斯(Scopus)

摘要

Solid-state disks use arrays of flash-memory chips for data storage. They adopt multichannel architectures to exploit parallelism among flash operations. Under real disk workloads, a channel spends nearly the same amount of time on writing host data and collecting garbage. Thus, the key to the success of multichannel architectures is to achieve high parallelism among channel operations under these two kinds of activities. This study presents a channel management scheme that comprises a write-buffer design and two channel management policies. The proposed scheme is designed to be generic, and it is applicable to both hybrid mapping and page-level mapping. Our experimental results show that the proposed management scheme doubles the average number of write requests completed per second (e.g., write IOPS) of a baseline multichannel architecture. We also successfully implemented the proposed scheme in a real solid-state disk and demonstrated the feasibility of our approach.

原文English
主出版物標題2011 9th IEEE Symposium on Embedded Systems for Real-Time Multimedia, ESTIMedia 2011
頁面37-45
頁數9
DOIs
出版狀態Published - 22 十二月 2011
事件2011 9th IEEE Symposium on Embedded Systems for Real-Time Multimedia, ESTIMedia 2011 - Taipei, Taiwan
持續時間: 13 十月 201114 十月 2011

出版系列

名字2011 9th IEEE Symposium on Embedded Systems for Real-Time Multimedia, ESTIMedia 2011

Conference

Conference2011 9th IEEE Symposium on Embedded Systems for Real-Time Multimedia, ESTIMedia 2011
國家/地區Taiwan
城市Taipei
期間13/10/1114/10/11

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