International Business Machines Corporation

Syed Abdul Wadood

Scott Alan Lenharth

John Vincent Meegan

Richard Campbell Foltz

Thomas R Herrick

Sy Long Lin

A database synchronization system for synchronizing a plurality of local databases in a plurality of distributed computing systems is disclosed. The plurality of distributed computing systems form a distributed computing environment (DCE). The synchronization system includes a system server, a registry database, coupled to the system server, a local area network (LAN) synchronization server, coupled to the system server, a LAN server synchronization library, coupled to the system server, and a LAN server, coupled to the LAN synchronization server and selected ones of the plurality distributed computing systems forming a LAN. Synchronization between the LAN and the DCE registry occurs when registry modifications in the registry database affecting at least one of the plurality of local LAN databases invokes the LAN server synchronization library to synchronize the affected database. The synchronization system utilizes a registry database coupled to each of the local databases. A primary replica is coupled to the registry database that synchronizes each local database within the DCE with the registry database. A secondary replica is then coupled to the primary replica, that synchronizes at least one local area network (LAN) server that includes selected ones of the plurality of computing systems and their respective databases with the registry database.

System for providing synchronization between a local area network and a

A method and a system for managing access to a plurality of objects located on levels within a hierarchical structure in a data processing system. A first object within the plurality of objects is located. An operation is selected to after access to selected objects within the plurality of objects, wherein the selected operation excludes altering access to directories located in said hierarchical structure on levels below the first directory to match that of the first directory. Then, the selected operation is performed on objects located in on levels below the first object wherein access to the plurality of objects may be managed.

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Austin, TX, United States of America

Syed Abdul Wadood