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:
Aug. 19, 2014
Filed:
Sep. 15, 2011
Alexandre Van Kempen, Cesson Sevigne, FR;
Erwan Le Merrer, Cesson Sevigne Cedex, FR;
Nicolas Le Scouarnec, Cesson Sevigne, FR;
Alexandre Van Kempen, Cesson Sevigne, FR;
Erwan Le Merrer, Cesson Sevigne Cedex, FR;
Nicolas Le Scouarnec, Cesson Sevigne, FR;
Thomson Licensing, , FR;
Abstract
A replication set of k storage devices is defined, that stores a particular data item. Each device in the replication set has an associated timer for which a timeout value for disconnection is determined based on individual downtime data distribution of the device. A new device for storing the data item is added to the replication set when the timer expires for a device in the replication set, and if the number of devices in the replication set that are still connected is below a predetermined threshold. Timeout values are adapted according to a factor of criticalness determined for the replication set, resulting in a more reactive, or on the contrary, a less reactive replacement of devices in the replication set. The factor of criticalness is determined according to a difference between the connected devices in the replication set and the predetermined number k.