Title:
STORAGE SYSTEM AND DATA STORING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/021415
Kind Code:
A1
Abstract:
A storage system 3 has a plurality of flash memory packages (FMPKs) 20 and a CPU 11. The plurality of FMPKs 20 include an FMPK 20 having a flash memory with a short write endurance and an FMPK 20 having a flash memory with a long write endurance. The CPU 11 determines whether an interface for a protocol of a write request is an object ID interface used when storing data with a low update probability or an SCSI interface used when storing data with a high update probability. If the interface is the object ID interface, the CPU 11 allocates, as a storing area to which write data is to be written, a storing area of the FMPK 20 of the flash memory with the short write endurance. If the interface is the SCSI interface, the CPU 11 allocates a storing area of the FMPK 20 of the flash memory with the long write endurance.
Inventors:
TORIGOE SEIJI (JP)
HOMMA SHIGEO (JP)
MITOME HIROYUKI (JP)
HOMMA SHIGEO (JP)
MITOME HIROYUKI (JP)
Application Number:
PCT/JP2017/027193
Publication Date:
January 31, 2019
Filing Date:
July 27, 2017
Export Citation:
Assignee:
HITACHI LTD (JP)
HITACHI INFORMATION & TELECOMMUNICATION ENG LTD (JP)
HITACHI INFORMATION & TELECOMMUNICATION ENG LTD (JP)
International Classes:
G06F12/06; G06F12/00; G06F12/16
Domestic Patent References:
| WO2015114829A1 | 2015-08-06 |
Foreign References:
| JP2015204118A | 2015-11-16 | |||
| JP2003022246A | 2003-01-24 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
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