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:
Mar. 09, 2010
Filed:
Mar. 31, 2006
James T. Compton, Durham, NC (US);
Uday K. Gupta, Westford, MA (US);
Sorin Faibish, Newton, MA (US);
Roy E. Clark, Hopkinton, MA (US);
Stephen Fridella, Belmont, MA (US);
Xiaoye Jiang, Shrewsbury, MA (US);
James T. Compton, Durham, NC (US);
Uday K. Gupta, Westford, MA (US);
Sorin Faibish, Newton, MA (US);
Roy E. Clark, Hopkinton, MA (US);
Stephen Fridella, Belmont, MA (US);
Xiaoye Jiang, Shrewsbury, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Methods, systems, and computer program products for providing access to shared storage by a plurality of nodes are disclosed. According to one method, at a node of a plurality of nodes sharing access to a disk array, an application input/output (I/O) operation and whether sufficient space in the disk array has been mapped at the node for the I/O operation are detected. In response to detecting that sufficient space in the disk array has not been mapped at the node for the I/O operation, a map for the I/O operation including physical disk access information is requested and obtained from a server. The physical disk access information included within the map for the application I/O operation obtained from the server is used to perform the I/O operation by accessing the disk array without intervention by the server.