1
Donavon W Johnson, Todd A Smith: Remote authentication and authorization in a distributed data processing system. International Business Machines Corporation, Marilyn D Smith, Diana L Roberts, September 24, 1996: US05560008 (355 worldwide citation)

The system and method of this invention authorizes a process running at a client data processing system to have access to a service at a server data processing system. The data processing systems are connected by a communication link in a distributed processing environment. A set of credentials for ...


2
Donavon W Johnson, Grover H Neuman, Charles H Sauer, Amal A Shaheen Gouda, Todd A Smith: System and method for accessing remote files in a distributed networking environment. International Business Machines Corporation, Marilyn D Smith, December 12, 1989: US04887204 (275 worldwide citation)

A distrbuted services program installed on each of a plurality of data processing systems in a network allows the processors to access data files distrbuted across the various nodes of the network.


3
Donavon W Johnson, Amal A Shaheen Gouda, Todd A Smith: Distributed file access structure lock. International Business Machines Corporation, Whitham & Marhoefer, December 29, 1992: US05175852 (226 worldwide citation)

A distributed file management system (DFS) with a plurality of nodes and a plurality of files is disclosed. The DFS uses the UNIX operating system tree structure employing inodes (data structures containing the administrative information of each file) to manage the local files and surrogate inodes ( ...


4
Donavon W Johnson, Stephen P Morgan, Todd A Smith: Maintenance of file attributes in a distributed data processing system. International Business Machines Corporation, Wayne P Bailey, Marilyn D Smith, May 12, 1992: US05113519 (202 worldwide citation)

The system and method of this invention maintains the latest file attributes such as file size, modify time, and access time, at the server data processing system in a distributed data processing system. The server data processing system combines information requested from the client data processing ...


5
Donavon W Johnson, Larry K Loucks, Charles H Sauer, Todd A Smith: Single system image uniquely defining an environment for each user in a data processing system. International Business Machines Corporation, Whitham & Marhoefer, March 19, 1991: US05001628 (142 worldwide citation)

These master system files define the system characteristics that a user at any node in the system can expect to have. The master system files are mounted remotely from each of the nodes of the system and a local copy of the master system files is kept locally reflecting the current contents of the m ...


6
Donavon W Johnson, Amal A Shaheen Gouda, Todd A Smith: Directory cache management in a distributed data processing system. International Business Machines Corporation, Douglas H Lefeve, September 29, 1992: US05151989 (126 worldwide citation)

An improved directory caching technique is provided for a plurality of data processing systems which are connected together in a network. In the system, when a local, or client, data processing system interrogates a remote, or server, data processing system for a unit of directory information, the s ...


7
Larry W Henson, Donavon W Johnson, Stephen P Morgan, Todd A Smith: File lock management in a distributed data processing system. International Business Machines Corporation, Douglas H Lefeve, July 6, 1993: US05226159 (80 worldwide citation)

A distributed data processing system and method in which locks on a file are supported by a data structure that resides on either a client machine or on the file's server. When only a single client's processes are locking a file, the data structure can reside on that client. Whenever a plurality of ...


8
Donavon W Johnson, Larry K Loucks, Amal A Shaheen Gouda: Interprocess communication queue location transparency. International Business Machines Corporation, Andrea P Bryant, July 21, 1992: US05133053 (70 worldwide citation)

A system for an efficient message handling technique implemented in AIX, an operating system derived from UNIX System V, is described for use in a distributed services network include a plurality of multi-processing, multi-tasking nodes among which interprocess communication occurs via queues, the a ...


9
Donavon W Johnson, Stephen P Morgan, Todd A Smith: System and method for controlling client machine access to a portion of a file with a variable length. International Business Machines Corporation, Douglas H Lefeve, December 29, 1992: US05175851 (58 worldwide citation)

A system and method in which client access to data at a server is synchronized to keep the data consistent by ensuring that each portion of the data accessible for modification at a node is not accessible for reading or modification by any other node, while allowing portions of the data accessible o ...


10
Larry W Henson, Donavon W Johnson, Stephen P Morgan, Todd A Smith: File lock management in a distributed data processing system. International Business Machines Corporation, Douglas H Lefeve, July 16, 1996: US05537645 (34 worldwide citation)

A distributed data processing system and method in which locks on a file are supported by a data structure that resides on either a client machine or on the file's server. When only a single client's processes are locking a file, the data structure can reside on that client. Whenever a plurality of ...