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:
Feb. 16, 2021
Filed:
Mar. 08, 2013
Drobo, Inc., San Jose, CA (US);
Rodney George Harrison, London, GB;
Jason Paul O'Broin, San Jose, CA (US);
Drobo, Inc., Sunnyvale, CA (US);
Abstract
Embodiments of the present invention allow for fast cache reheat by periodically storing a snapshot of information identifying the contents of the cache at the time of the snapshot, and then using the information from the last snapshot to restore the contents of the cache following an event that causes loss or corruption of cache contents such as a loss of power or system reset. Since there can be a time gap between the taking of a snapshot and such an event, the actual contents of the cache, and hence the corresponding data stored in a data store, may have changed since the last snapshot was taken. Thus, the information stored at the last snapshot is used to retrieve current data from the data store for use in restoring the contents of the cache.