All-SSD storage system with indication of garbage collection and dynamic allocation of reserved SSD

Author

Kurotsuchi, Kenzo ; Miura, Shun

Author_Institution

Hitachi Central Res. Lab., Kokubunji, Japan

fYear

2014

fDate

18-21 May 2014

Firstpage

1

Lastpage

4

Abstract

A new all-solid-state-drive (all-SSD) storage system, which does not suffer performance degradation due to garbage collection, for high-performance enterprise storage is proposed. The storage system has two new functions, namely, an indication of garbage collection (“GC indication”) and a dynamic allocation of a reserved SSD (“DLS allocation”). Cooperation between these two functions can dramatically shorten maximum write and read response times of the system by 87% and 92%, respectively. These reductions were confirmed by an FPGA emulator simulating the system.

Keywords

NAND circuits; field programmable gate arrays; flash memories; DLS allocation; FPGA emulator; GC indication; NAND flash memory; all-SSD storage system; all-solid-state-drive storage system; garbage collection indication; high-performance enterprise storage; maximum write-read response time; performance degradation; reserved SSD dynamic allocation; Degradation; Dynamic scheduling; Field programmable gate arrays; Flash memories; Resource management; Servers; Time factors; All-SSD storage system; SSD; dynamic allocation; garbage collection; reserved SSD;

fLanguage

English

Publisher

ieee

Conference_Titel

Memory Workshop (IMW), 2014 IEEE 6th International

Conference_Location

Taipei

Print_ISBN

978-1-4799-3594-9

Type

conf

DOI

10.1109/IMW.2014.6849353

Filename

6849353