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US 2003/0233603 A1Published application
Method for detecting fault between storage devices, and storage device used for the same
AssigneeHitachi, Ltd.
InventorKoji Nagata
Life of this patent
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Abstract
Processing of heavy load data transfer is executed among a plurality of storage devices interconnected through a communication line. Faults are detected in accordance with a result of the data transfer processing to enable detection of faults on a data path.
Claims18
A fault detecting method on a data path among a plurality of storage devices interconnected through a communication line, comprising:
- executing heavy load data transfer through said data path;
- detecting a fault in said data path in accordance with a result of said data transfer;
- fixing said detected fault in said data path;
- and
- resuming normal data transfer by using said fixed data path.
2 more elements
A storage device for detecting a fault on a data path communicating with another storage device, comprising:
- an interface circuit for transferring data to/from said another storage device;
- a disk device;
- a disk interface circuit for transferring data to/from said disk device;
- a data transfer circuit for transferring data between said interface circuit and said disk interface circuit;
- and
- a controller for executing heavy load data transfer through said data path by using said data transfer circuit.
3 more elements
Dependencies are inferred from the claim text.