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:
May. 20, 2003
Filed:
Sep. 17, 2002
Ishay Kedem, Brookline, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
In one embodiment of the invention, during a single I/O operation, data is destaged from a cache to at least two non-contiguous storage locations of a data storage device without overwriting at least one storage location disposed between the at least two non-contiguous storage locations. In another embodiment, a communication link is established between a controller that controls data flow between a cache and a data storage device, and this communication link is used to destage data from the cache to at least two non-contiguous storage locations of the data storage device without overwriting at least one storage location between the at least two non-contiguous storage locations and without breaking the communication link. In another embodiment of the invention, data is destaged from a cache to a data storage device by transmitting the data to the data storage device, and also transmitting information to the data storage device identifying at least two storage locations to which the data is to be written, and further identifying at least one storage location, disposed between the at least two storage locations, to which the data is not to be written.