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:
Jul. 12, 2011
Filed:
Sep. 22, 2009
Douglas J. Santry, San Francisco, CA (US);
Raymond C. Chen, Campbell, CA (US);
Douglas J. Santry, San Francisco, CA (US);
Raymond C. Chen, Campbell, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
A data storage system is disclosed. A flag is maintained in metadata pointing to a block of data. A first value of the flag indicates that the block of data is stored in a user accessible file. A second value of the flag indicates that the block of data is stored in a protected file. The flag pointing to the requested data block is checked upon receipt of a data access request. When the flag has the first value the data access request is permitted. When the flag has the second value, an access control list is checked, and if the requesting client is listed in the access control list permitting the data access request, and if the requesting client is not listed in the access control list denying the data access request.