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. 05, 2013
Filed:
Aug. 17, 2011
Jinyuan LI, Sunnyvale, CA (US);
Murali Vilayannur, San Jose, CA (US);
Mayank Rawat, Sunnyvale, CA (US);
Satyam B. Vaghani, San Jose, CA (US);
Jinyuan Li, Sunnyvale, CA (US);
Murali Vilayannur, San Jose, CA (US);
Mayank Rawat, Sunnyvale, CA (US);
Satyam B. Vaghani, San Jose, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
A shared file system for a group of host computer systems is upgraded in-place in a manner that the shared file system can remain online and accessible to the host computer systems. Each host computer system first loads a new file system driver that is backward compatible with a driver that is currently used by them to interact with the file system. Second, one of the host computer systems acquires locks to file system management data structures of the file system, upgrades the file system management data structures, and upon completion thereof, notifies the other host computer system that the upgrade to the file system management data structures is complete.