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Efficient journaling writeback schemes for reliable and high-performance storage systems

Authors
Lim, Seung-HoChoi, Hyun JinPark, Doo-Soon
Issue Date
Dec-2013
Publisher
Springer Verlag
Keywords
Journaling file system; Fragmented data; Hard disk drive; Solid-state drive
Citation
Personal and Ubiquitous Computing, v.17, no.8, pp 1761 - 1774
Pages
14
Journal Title
Personal and Ubiquitous Computing
Volume
17
Number
8
Start Page
1761
End Page
1774
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/13174
DOI
10.1007/s00779-012-0603-5
ISSN
1617-4909
1617-4917
Abstract
We propose a efficient writeback scheme that enables guaranteeing throughput in high-performance storage systems. The proposed scheme, called de-fragmented writeback (DFW), reduces positioning time of storage devices in writing workloads, and thus enables fast writeback in storage systems. We consider both of storage media in designing DFW scheme; traditional rotating disk and emerging solid-state disks. First, sorting and filling holes methods are used for rotating disk media for the higher throughput. The scheme converts fragmented data blocks into sequential ones so that it reduces the number of write requests and unnecessary disk-head movements. Second, flash block aware clustering-based writeback scheme is used for solid-state disks considering the characteristics of flash memory. The experimental results show that our schemes guarantee system's high throughput while guaranteeing data reliability.
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