The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 2007
Filed:
Jan. 12, 2005
Thomas R. Forrer, Jr., Round Rock, TX (US);
Jason Eric Moore, Austin, TX (US);
Asghar Tavasoli, Austin, TX (US);
Abel Enrique Zuzuarregui, Paige, TX (US);
Thomas R. Forrer, Jr., Round Rock, TX (US);
Jason Eric Moore, Austin, TX (US);
Asghar Tavasoli, Austin, TX (US);
Abel Enrique Zuzuarregui, Paige, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus, and computer program product are disclosed for controlling accesses of drives in a storage subsystem. A first array of a first type of drive is provided. The first type of drive is a server class of drive. A second array of a second type of drive is provided. The second type of drive is a PC class drive. The first and second arrays are bound together to form a single array of drives. The single array of drives is presented to a host that is coupled to the storage subsystem as a single array. The host is unaware that the single array includes two different types of drives. Data is stored in the second array of drives. Data is migrated from the second array of drives to the first array of drives when an access rate of the second array of drives exceeds a threshold access rate for the second type of drive.