Search International and National Patent Collections

1. (WO2018220714) STORAGE SYSTEM AND METHOD OF CONTROLLING MEMORY DEVICE

Pub. No.:    WO/2018/220714    International Application No.:    PCT/JP2017/020099
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Wed May 31 01:59:59 CEST 2017
IPC: G06F 12/16
G06F 11/00
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: MIZUSHIMA, Nagamasa
水島 永雅
SUZUKI, Akifumi
鈴木 彬史
KOSEKI, Hideyuki
小関 英通
Title: STORAGE SYSTEM AND METHOD OF CONTROLLING MEMORY DEVICE
Abstract:
At least one of a plurality of nonvolatile semiconductor memory devices is assumed to be a nonvolatile semiconductor memory device (hereafter, a first memory device) that is in a low power consumption state in which an error inspection process and a refresh process cannot be performed. A storage system deactivates the low power consumption state of the first memory device with timing that conforms to an elapsed time since the first memory device was placed into the low power consumption state and the estimated ambient temperature of the first memory device at the elapsed time. When the low power consumption state is deactivated, the first memory device executes an error inspection process and a refresh process.