Title:
DATA STORAGE APPARATUS AND DATA STORAGE CONTROL METHOD FOR THE SAME
Document Type and Number:
WIPO Patent Application WO/2012/011153
Kind Code:
A1
Abstract:
A storage apparatus and its control method capable of implementing thin provisioning and reducing power consumption of storage devices are provided. A storage apparatus classifies a plurality of storage devices, which provide a pool with a storage resource, into a plurality of groups; performs thin provisioning operation by setting some of the plurality of groups to an active mode, in which the storage devices belonging to the groups are made to enter an activated state; sets other groups to a power-saving mode in which the storage devices are made to enter a power-saving state; and sequentially switches between the group(s) in the active mode and the group(s) in the power-saving mode among the plurality of groups.
Inventors:
SAITO, Kenichi (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
CHIKUSA, Takashi (C/O HITACHI COMPUTER PERIPHERALS CO. LTD, 781, Sakai, Nakaimachi, Ashigarakami-gu, Kanagawa 80, 25901, JP)
HIRANO, Kazuya (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
KUMASAWA, Hiroyuki (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
CHIKUSA, Takashi (C/O HITACHI COMPUTER PERIPHERALS CO. LTD, 781, Sakai, Nakaimachi, Ashigarakami-gu, Kanagawa 80, 25901, JP)
HIRANO, Kazuya (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
KUMASAWA, Hiroyuki (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
Application Number:
JP2010/004705
Publication Date:
January 26, 2012
Filing Date:
July 22, 2010
Export Citation:
Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 10082, JP)
SAITO, Kenichi (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
CHIKUSA, Takashi (C/O HITACHI COMPUTER PERIPHERALS CO. LTD, 781, Sakai, Nakaimachi, Ashigarakami-gu, Kanagawa 80, 25901, JP)
HIRANO, Kazuya (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
KUMASAWA, Hiroyuki (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
SAITO, Kenichi (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
CHIKUSA, Takashi (C/O HITACHI COMPUTER PERIPHERALS CO. LTD, 781, Sakai, Nakaimachi, Ashigarakami-gu, Kanagawa 80, 25901, JP)
HIRANO, Kazuya (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
KUMASAWA, Hiroyuki (C/O HITACHI LTD, Disk Array Systems Division, 322-2, Nakazato, Odawara-sh, Kanagawa 72, 25008, JP)
International Classes:
G06F3/06; G06F1/32
Attorney, Agent or Firm:
OHGA, Shinji et al. (SUNNEXT INTERNATIONAL PATENT OFFICE, 3rd FloorShiodome Building, 1-2-20, Kaigan, Minato-k, Tokyo 22, 10500, JP)
Claims: