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. 09, 2010
Filed:
Oct. 08, 2004
Balemurughan Kumaresan, Palo Alto, CA (US);
Harold Bailey Prince, Jr., Palo Alto, CA (US);
Ramesh Balan, Cupertino, CA (US);
Balemurughan Kumaresan, Palo Alto, CA (US);
Harold Bailey Prince, Jr., Palo Alto, CA (US);
Ramesh Balan, Cupertino, CA (US);
Symantec Operating Corporation, Mountain View, CA (US);
Abstract
A method, system, computer system, and computer-readable medium to efficiently coordinate caching operations between nodes operating on the same file while allowing different regions of the file to be written concurrently. More than one program can concurrently read and write to the same file. Pages of data from the file are proactively and selectively cached and flushed on different nodes. In one embodiment, range locks are used to effectively flush and invalidate only those pages that are accessed on another node.