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:
Oct. 09, 2018
Filed:
Jan. 18, 2017
Hgst, Inc., San Jose, CA (US);
Senthilkumar Narayanasamy, San Jose, CA (US);
Koushik Rajagopal, Milpitas, CA (US);
Praveen Kumar Loganathan, Milpitas, CA (US);
HGST, Inc., San Jose, CA (US);
Abstract
A method for managing persistent file handles includes starting an expiry timer and creating a Persistent File Handle (PHDL) container for storing extended file attributes including, a generation number (GN), a share GN (SGN), a previous SGN, and a timeout max value for an expiry timer, where a SGN is a timestamp of a volume migration or an online creation in relation to the expiry timer. The method additionally includes creating a PHDL iterator to update the SGNs for every volume exported to clients, volumes created online or for a restarting of a network-share service on a server. The method further includes triggering a clean-up of stale PHDL containers from a server memory based on a difference of the new SGN and the previous SGN being greater than the timeout maximum number else preserving the PHDL object container and updating the well-known key value.