Title:
STORAGE APPARATUS AND METHOD FOR CONTROLLING THE SAME
Document Type and Number:
WIPO Patent Application WO/2011/141961
Kind Code:
A1
Abstract:
An objective is to allow a storage apparatus to accurately locate a failure site upon occurrence of a failure. Provided is a storage apparatus 10 including: a controller 11 that performs data input and data output into and from a storage drive 171 in response to a data input/output request sent from an external device 2; and expanders 112, 121 each having a switch circuit 1122 provided with a physical port (Phy 1121). In this storage apparatus 10, the controller 11 performs a loopback diagnosis on the expanders 112, 121, and performs a connection-based diagnosis on a target device by sending a connection frame thereto, the target device being a device detected as having a failure. When a response to the connection frame includes information indicating a failure, the controller 11 disables the physical port to which the target device is coupled, or the physical port of the switch circuit 1121 existing on a path from the controller 11 to the target device.
Inventors:
KONISHI YUSUKE (JP)
IZUTA HIROSHI (JP)
SUZUKI HIROYOSHI (JP)
IZUTA HIROSHI (JP)
SUZUKI HIROYOSHI (JP)
Application Number:
PCT/JP2010/003215
Publication Date:
November 17, 2011
Filing Date:
May 12, 2010
Export Citation:
Assignee:
HITACHI LTD (JP)
KONISHI YUSUKE (JP)
IZUTA HIROSHI (JP)
SUZUKI HIROYOSHI (JP)
KONISHI YUSUKE (JP)
IZUTA HIROSHI (JP)
SUZUKI HIROYOSHI (JP)
International Classes:
G06F3/06; G06F11/07; G06F13/40; G06F13/42; H04L12/24
Foreign References:
| US7360119B1 | 2008-04-15 | |||
| US20070076321A1 | 2007-04-05 |
Other References:
"AMERICAN NATIONAL STANDARD FOR INFORMATION TECHNOLOGY - SERIAL ATTACHED SCSI (SAS)", AMERICAN NATIONAL STANDARD, XX, XX, vol. 376-2003, 11 November 2003 (2003-11-11), XP009049765
Attorney, Agent or Firm:
ISSHIKI & CO. (12-7 Shinbashi 2-chome, Minato-k, Tokyo 04, JP)
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Claims: