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1. (WO2014203316) INFORMATION PROCESSING DEVICE, CONTROL CIRCUIT, CONTROL PROGRAM, AND CONTROL METHOD

Pub. No.:    WO/2014/203316    International Application No.:    PCT/JP2013/066625
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Tue Jun 18 01:59:59 CEST 2013
IPC: G06F 12/02
G06F 12/00
Applicants: FUJITSU LIMITED
富士通株式会社
Inventors: HAYASAKA, Kazumi
早坂 和美
HIGETA, Masanori
日下田 雅紀
Title: INFORMATION PROCESSING DEVICE, CONTROL CIRCUIT, CONTROL PROGRAM, AND CONTROL METHOD
Abstract:
The present invention comprises a logical address selection unit (161) which: identifies, from among logical address groups, a group including logical addresses that represents a NAND device (7a) in which valid data included in a block is stored; and selects, in order, a logical address included in the group. A physical address acquisition unit (162) acquires, from an address conversion table (18), a physical address corresponding to the selected logical address. A determination unit (163) uses a prescribed condition to determine whether to move data stored in a storage region that represents the acquired physical address. If it is determined that the data is to be moved, a data movement control unit (17) moves the data stored in the storage region that represents the acquired physical address to another NAND device (8a). A table control unit (14) updates the physical address associated with the selected logical address in the address conversion table (18) to a physical address that represents the other NAND device (8a).