Metadirectory namespace and method for use of the same

Details Metadirectory namespace and method for use of the same Metadirectory namespace and method for use of the same

2011-07-12

2011-07-12

Al-Hashemi, Sana (Department: 2156)

Data processing: database and file management or data structures

Database and file access

Search engines

C707S711000, C707S716000, C707S726000, C707S741000

Reexamination Certificate

active

07979416

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.

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