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:
Mar. 08, 2011
Filed:
Feb. 04, 2005
Roger Keith Stager, Livermore, CA (US);
Donald Alvin Trimmer, Livermore, CA (US);
Pawan Saxena, Pleasanton, CA (US);
Craig Anthony Johnston, Livermore, CA (US);
Yafen Peggy Chang, Fremont, CA (US);
Rico Blaser, San Franciso, CA (US);
Roger Keith Stager, Livermore, CA (US);
Donald Alvin Trimmer, Livermore, CA (US);
Pawan Saxena, Pleasanton, CA (US);
Craig Anthony Johnston, Livermore, CA (US);
Yafen Peggy Chang, Fremont, CA (US);
Rico Blaser, San Franciso, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A method and apparatus for managing backup data is disclosed. A data backup system defines a plurality of time windows for creating and maintaining backup data in accordance with a data backup policy. Each of the time windows is assigned a predetermined amount of storage space. When the data backup system creates backup data, the system determines whether a storage space assigned to a time window is large enough to accommodate new backup data. If the storage space is large enough, the new backup data is stored. However, if the storage space is not large enough, the system deletes the oldest backup data until enough storage space is obtained.