Both MIMIX user journal and system journal replication processes allow data to flow bi-directionally, but their implementations and configuration requirements are distinct.
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In user journal replication processing, bi-directional data flow is a data sharing technique in which the same named database file can be replicated between databases on two systems in two directions at the same time. When MIMIX user journal replication processes are configured for bi-directional data flow, each system is both a source system and a target system.
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System journal replication processing supports the bi-directional flow of objects between a pair of systems, however when objects on each system have updates made in the same time frame, a loss of data will most likely result. In this case, the object data on each system is from the last update replicated to that system.
MIMIX also supports bi-directional replication within the context of an environment configured with IBM Db2 Mirror for i. Replication in this environment requires the This environment has Assure MIMIX for IBM Db2 Mirror licensed feature and has specific configuration requirements.
File sharing is a scenario in which a file can be shared among a group of systems and can be updated from any of the systems in the group. MIMIX implements file sharing among systems defined to the same MIMIX installation. To enable file sharing, MIMIX must be configured to allow bi-directional data flow. An example of file sharing is when an enterprise maintains a single database file that must be updated from any of several systems.