Title:
STORAGE DEVICE, RECORDING MEDIUM, AND STORAGE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2017/081811
Kind Code:
A1
Abstract:
The purpose of the present invention is to prevent excess accumulation of dirty data volumes in a cache memory. A processor acquires storage device information from each storage device. Upon receiving a write request to a first storage device group from a higher-order device, the processor determines whether a write destination cache region has been established which corresponds to the write destination address which has been indicated in the write request. If it is determined that the write destination cache region has not been established, the processor carries out an establishment determination which determines, on the basis of the storage device information and cache information, whether to establish the write destination cache region. If the determination is made to establish the write destination cache region, the processor establishes the write destination cache region. If the determination is made not to establish the write destination cache region, the processor postpones establishing the write destination cache region.
Inventors:
KUSUNO NATSUKI (JP)
SEKI TOSHIYA (JP)
NISHIMOTO TOMOHIRO (JP)
MATSUSHITA TAKAKI (JP)
SEKI TOSHIYA (JP)
NISHIMOTO TOMOHIRO (JP)
MATSUSHITA TAKAKI (JP)
Application Number:
PCT/JP2015/081968
Publication Date:
May 18, 2017
Filing Date:
November 13, 2015
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G06F3/06
Domestic Patent References:
| WO2014184941A1 | 2014-11-20 | |||
| WO2015008375A1 | 2015-01-22 | |||
| WO2015052798A1 | 2015-04-16 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
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