Abstract: A system and method for applying a file system security model to a query system. In one embodiment, the system may include a storage device configured to store data and a file system configured to manage access to the storage device, to store file system content, and to implement a first security model, where the first security model is configured to control access to the file system content. The system may further include a query system configured to query the file system content, and security mapping functionality configured to apply the first security model to the query system.

Abstract: A system and method for determining file system data integrity. In one embodiment, the system includes a storage device configured to store data and a file system configured to manage access to the storage device, to store plurality of files, to store a respective signature of each of the plurality of files, and to compare a respective signature of a given file against a corresponding validation signature. In one specific implementation, the system further includes a validation signature inventory including a plurality of validation signatures, and the file system is further configured to validate a particular file by retrieving a corresponding particular validation signature from the validation signature inventory and comparing the corresponding particular validation signature against the respective signature of the particular file. In another specific implementation, the file system is further configured to store the corresponding validation signature of the given file in a write-once storage attribute.

Abstract: A system and method for detecting file content similarity within a file system. The system may include a storage device configured to store a plurality of files and a file system configured to manage access to the storage device. The file system may be configured to compute a compressed size of at least a portion of a given file, and to store an indication of the compressed size in a named stream corresponding to the given file. In one specific implementation of the system, the file system may be further configured to determine a value of a file harmony metric from the compressed size of the concatenation of a first and second file and the compressed sizes of the first and second files, where the compressed sizes of the first and second files may be stored in a corresponding one of a plurality of respective named streams.

Abstract: A system and method for detecting and storing file content access information within a file system. In one embodiment, the system may include a storage device configured to store a plurality of files and a file system configured to manage access to the storage device. The file system may be configured to detect an operation to access content of a first file stored on the storage device and, subsequent to detecting the operation, store a record of the operation associated with the first file, where the record includes a signature corresponding to the first file.

Abstract: Computer-implemented methods and apparatus for tagging data assets are disclosed. The disclosed methods include a method of responding to a user request that a computer program application open a data asset. The method of opening a data asset includes presenting to the user a location interface to receive data asset location information from the user to locate a desired data asset. The location interface is linked to a searchable tag database that includes concept data elements, asset references, and associations. Concept data elements each representing a concept and have a hierarchy specified by concept hierarchy information. Asset references each comprise a storage location identifier for a corresponding data asset. Each association represents a relation between a data asset and a concept. The method also includes receiving from the user a query identifying a concept and a relation.

Abstract: Computer-implemented methods and apparatus for tagging data assets are disclosed. The disclosed methods include a method of responding to a user request that a computer program application open a data asset. The method of opening a data asset includes presenting to the user a location interface to receive data asset location information from the user to locate a desired data asset. The location interface is linked to a searchable tag database that includes concept data elements, asset references, and associations. Concept data elements each representing a concept and have a hierarchy specified by concept hierarchy information. Asset references each comprise a storage location identifier for a corresponding data asset. Each association represents a relation between a data asset and a concept. The method also includes receiving from the user a query identifying a concept and a relation.