Title:
STORAGE SYSTEM WITH MULTIPLE CONTROLLERS
Document Type and Number:
WIPO Patent Application WO/2011/058598
Kind Code:
A1
Abstract:
A first controller, and a second controller coupled to the first controller via a first path are provided. The first controller includes a first relay circuit which is a circuit that controls data transfer, and a first processor coupled to the first relay circuit via a first second path. The second controller includes a second relay circuit which is a circuit that controls data transfer, and is coupled to the first relay circuit via the first path, and a second processor coupled to the second relay circuit via a second second path. The first processor is coupled to the second relay circuit not via the first relay circuit but via a first third path, and accesses the second relay circuit via the first third path during an I/O process. The second processor is coupled to the first relay circuit not via the second relay circuit but via a second third path, and accesses the first relay circuit via the second third path during an I/O process.
Inventors:
ARAI MASAHIRO (JP)
FUKUDA HIDEAKI (JP)
MINOWA NOBUYUKI (JP)
NAKAMURA SHUJI
FUKUDA HIDEAKI (JP)
MINOWA NOBUYUKI (JP)
NAKAMURA SHUJI
Application Number:
PCT/JP2009/005995
Publication Date:
May 19, 2011
Filing Date:
November 10, 2009
Export Citation:
Assignee:
HITACHI LTD (JP)
NAKAMURA EMI (JP)
ARAI MASAHIRO (JP)
FUKUDA HIDEAKI (JP)
MINOWA NOBUYUKI (JP)
NAKAMURA EMI (JP)
ARAI MASAHIRO (JP)
FUKUDA HIDEAKI (JP)
MINOWA NOBUYUKI (JP)
International Classes:
G06F12/08
Foreign References:
| US20020152355A1 | 2002-10-17 | |||
| EP1372076A2 | 2003-12-17 | |||
| US6842829B1 | 2005-01-11 | |||
| EP1818794A2 | 2007-08-15 | |||
| US6944684B1 | 2005-09-13 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL (3-2 Kajicho 2-chome, Chiyoda-k, Tokyo 44, JP)
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