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. 25, 2011
Filed:
Jan. 11, 2008
Paresh Chatterjee, Fremont, CA (US);
Srikumar Subramanian, Fremont, CA (US);
Suresh Grandhi, Fremont, CA (US);
Narayanaswami Ganapathy, Fremont, CA (US);
Paresh Chatterjee, Fremont, CA (US);
Srikumar Subramanian, Fremont, CA (US);
Suresh Grandhi, Fremont, CA (US);
Narayanaswami Ganapathy, Fremont, CA (US);
American Megatrends, Inc., Norcross, GA (US);
Abstract
Techniques for continuous data protection can include creating snapshots of one or more underlying storage volumes upon specific file system events. Generating snapshots upon every file close event can protect the files in a storage system by keeping a snapshot of every version or modification of each file. Removal of redundant snapshots can mitigate the impact on storage capacity associated with creating these large numbers of volume snapshots upon each file close event. Additionally, file closure lists can be employed to allow generating snapshots only when a previously closed file is reopened. Such an approach can protect the previous version of a file prior to the opening of a new version of the file. Such an approach can also mitigate storage capacity impact without the creation of redundant snapshots.