Geodatabase replication
In simplest terms, geodatabase replication is the process of duplicating spatial data stored in a database management system (DBMS).[1]
In ArcGIS, a method of distributing data across two or more geodatabases in order to synchronize data changes. An entire geodatabase or a subset of a geodatabase can be replicated. There are three types of geodatabase replication: two-way replication, one-way replication, and checkout/check-in replication.[2]
Geodatabase replication is not the same as DBMS replication; it is implemented using the versioning environment created by ArcSDE technology, and does not depend on any replication capabilities of the underlying DBMS.[3]
The reasons for geodatabase replication are manifold, and are analogous to database replication in general. These include:[1]
- Database performance and load balancing
- Network load reduction
- Systems and data security
- Spatial data partitioning
- Disconnected computing
- Enterprise use of GIS data
- Server consolidation and reorganization
- High-availability architectures
- Disaster recovery
References
- ↑ 1.0 1.1 ArcSDE Geodatabase Replication Overview. ESRI Systems Integration Technical Brief. May 2005.
- ↑ Wade, Tasha; Sommer, Shelly, eds. A to Z GIS: An illustrated dictionary of geographic information systems, ESRI Press, 2006
- ↑ Geodatabase Replication: An Overview. ESRI Instructional Series Podcast (transcription). 13 February 2007.
