Title:
LOAD DISTRIBUTION STORAGE SYSTEM AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/164625
Kind Code:
A1
Abstract:
Even if abnormality occurs in part of a plurality of data processing resources, data processing is executed by using a normal resource(s). Each of a plurality of storage apparatuses includes a host communication control unit, a controller, and a storage device communication control unit. If abnormality occurs in the host communication control unit of a local system or the storage device communication control unit of the local system, the controller of each system selects a normal resource, as a resource to be used for processing after the occurrence of the abnormality, from the host communication control unit of the local system or the storage device communication control unit of the local system, executes processing of a command for the local system, which is issued from a host computer after the occurrence of the abnormality, by using the selected resource, and requests the storage apparatus of the other system via a data transfer path to execute part of the processing of the command for the local system.
Inventors:
MURAMATSU KOTARO (JP)
NISHIMOTO AKIRA (JP)
NISHIMOTO AKIRA (JP)
Application Number:
PCT/JP2011/003096
Publication Date:
December 06, 2012
Filing Date:
June 01, 2011
Export Citation:
Assignee:
HITACHI LTD (JP)
MURAMATSU KOTARO (JP)
NISHIMOTO AKIRA (JP)
MURAMATSU KOTARO (JP)
NISHIMOTO AKIRA (JP)
International Classes:
G06F11/20
Domestic Patent References:
| WO2010041481A1 | 2010-04-15 |
Foreign References:
| EP1936487A2 | 2008-06-25 | |||
| US6356978B1 | 2002-03-12 | |||
| EP0747822A2 | 1996-12-11 | |||
| JP2008134775A | 2008-06-12 |
Attorney, Agent or Firm:
OHGA, Shinji et al. (3rd Floor Shiodome Building, 1-2-20, Kaigan, Minato-k, Tokyo 22, JP)
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Claims: