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. 06, 2012
Filed:
Mar. 19, 2008
Yuval Frandzel, Foster City, CA (US);
Andrew Narver, Menlo Park, CA (US);
Ajay Singh, San Francisco, CA (US);
Joseph White, Redwood City, CA (US);
Yuval Frandzel, Foster City, CA (US);
Andrew Narver, Menlo Park, CA (US);
Ajay Singh, San Francisco, CA (US);
Joseph White, Redwood City, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
Embodiments of the present invention provide mechanisms for improving storage consumption on a sequential access medium, such as a physical tape, by preferably storing one instance of a data block of a backup data set on the tape media. When another instance of a data block is received having the same pattern as the stored data block, rather than storing the data block itself, a reference to the data block is stored on the sequential access medium. When data are restored, data blocks are cached at a block store on a storage device(s) having a faster seek time than the tape. When a reference to a previously stored data block is read from the tape, rather than re-winding the tape to search for the data block on the tape (which might take a long time to locate), the referenced data block can be found on the storage device having a faster seek time than the tape media.