e-journal

DRACO: A Deduplicating FTL for Tangible Extra Capacity

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The rapid random access of SSDs enables efficient searching of redundant data and their deduplication. However, the space earned from deduplication cannot be used as permanent storage because it must be reclaimed when deduplication is cancelled as a result of an update to the deduplicated data. To overcome this limitation, we propose a novel FTL scheme that enables the
gained capacity to be used as permanent storage space for the file system layer. The proposed approach determines the safe amount of gained capacity that can be provided to the upper layer based on the compression rate prediction scheme. It then secures the required space by compressing cold data when capacity overflow occurs from cancelled deduplication. Our evaluation with a kernel source repository showed that the file system obtained approximately 79 percent additional capacity by the proposed scheme.

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Informasi Detail

Judul Seri

COMPUTER ARCHITECTURE

No. Panggil

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Penerbit

Sweden : Graduate School of Economics, Waseda University., 2015

Deskripsi Fisik

IEEE COMPUTER ARCHITECTURE LETTERS, VOL. 14, NO. 2, JULY-DECEMBER 2015

Bahasa

English

ISBN/ISSN

Digital Object Ident

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

VOL. 14, NO. 2, JULY-DECEMBER 2015

Subjek

ARSITEKTUR KOMPUTER

Info Detail Spesifik

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Pernyataan Tanggungjawab

deliza

Versi lain/terkait

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