Patent ID: 7421555
Filing Date: 2008-09-02
Classification: G06F

Abstract:
1. A method for managing file security attributes by a file server in a computer file storage system, the computer file storage system including a file secured using a first file security model, the method comprising: receiving a first request from a client relating to the file stored in the computer file storage system, the client utilizing a second file security model; retrieving a first set of file security attributes, in accordance with the first file security model, associated with the file, the first set of file security attributes including at least an owner identifier and a group identifier; and generating a second set of file security attributes, in accordance with the second file security model, from the first set of file security attributes, the second set of file security attributes including a plurality of security identifiers (SID) including at least an owner SID derived from the owner identifier and a group SID derived from the group identifier, wherein at least one of the owner SID and the group SID includes at least one map failure indicator and the corresponding identifier from the first set of file security attributes, wherein the map failure indicator indicates that said identifier relates to the first file security model.