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:
Nov. 10, 2009
Filed:
Sep. 07, 2005
Stephen A. Fridella, Belmont, MA (US);
Xiaoye Jiang, Shrewsbury, MA (US);
Sorin Faibish, Newton, MA (US);
John Forecast, Newton, MA (US);
Stephen A. Fridella, Belmont, MA (US);
Xiaoye Jiang, Shrewsbury, MA (US);
Sorin Faibish, Newton, MA (US);
John Forecast, Newton, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A file server system has a cluster of server computers that share access to a file system in shared storage. One of the server computers has primary responsibility for management of access to the file system. In order to reduce the possibility of primary server overload when a large number of the clients happen to concurrently access the same file system, most metadata processing operations are offloaded to secondary server computers. This also facilitates recovery from failure of a primary server computer since only a fraction of the ongoing metadata operations of a primary server computer is interrupted by a failure of the primary server computer. For example, a secondary data mover may truncate, delete, create, or rename a file in response to a client request.