Storage device and control method thereof

Details Storage device and control method thereof Storage device and control method thereof

2011-03-15

2011-03-15

Lee, Chun-Kuan (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C710S008000, C710S014000, C710S018000

Reexamination Certificate

active

07908408

ABSTRACT:
The present invention provides a storage device and a control method thereof which can enhance general-use property and availability of a storage system while enhancing I/O performance of the storage system as a whole. The storage device is provided with an external connection function in which a command is generated in response to a read request or a write request given by a host computer, and the generated command is issued to an external storage device via any of a plurality of ports. In such a storage device, a channel processor, for every kind of the command, issues a test command to the external storage device in a plurality of issuing methods, measures an I/O performance for every issuing method, displays a result of measurement of the I/O performance for every method, and/or sets the issuing method in issuing the command to the external storage device based on the result of measurement of the I/O performance for every issuing method.

REFERENCES:
patent: 2003/0204597 (2003-10-01), Arakawa et al.
patent: 2004/0153863 (2004-08-01), Klotz et al.
patent: 2005/0193167 (2005-09-01), Eguchi et al.
patent: 2006-331458 (2006-12-01), None
Intel IOmeter screenshot1, Dec. 23 2006, http://web.archive.org/web/20061221143054/www.iometer.org/graphics/screen1.jpg9/22/2010.
Intel IOmeter project, Dec. 23, 2006, http://web.archive.org/web/20061223093406/www.iometer.org/9/22/2010.
Intel IOmeter screenshot2, Decmber 23, 2006, http://web.archive.org/web/20061221143701/www.iometer.org/graphics/screen2.jpg9/22/2010.

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