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:
Apr. 07, 2015
Filed:
Jun. 30, 2007
Jedidiah Yueh, Irvine, CA (US);
Jedidiah Yueh, Irvine, CA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A data storage and protection system includes secondary storage and at least one instance of a high efficiency storage application ('HESA'). The HESA backs up and archives client data stored in primary storage of a client computer system or client node to secondary storage. Archive files generated by the HESA re-use previously backed up client data stored in the secondary storage. In one embodiment, previously backed up client data is re-used for an archive file by organizing the archive file as a hash tree having hash values pointing to the previously backed up client data. In addition, the HESA can maximize available space in the primary storage by replacing previously backed up and/or archived client data in the primary storage with pointers that point to the previously backed up and/or archived client data in secondary storage.