Does SAP support Microsoft Geo Clusters?
first of all, Geo-Clustering (Microsofts name for it is geographically dispersed Clusters) is no special product from Microsoft, it’s just a special setup of the normal MSCS (or to be more correct, Microsoft Server Cluster 2003) configuration of Windows Server 2003. Geospan Clusters are not supported by SAP – in terms of configuration and installation. The standard configuration of a two node MSCS cluster consists of two cluster nodes and a shared storage. All technical components are located in the same data center. In a geographical dispersed cluster the cluster nodes are distributed accross at least two data centers and you need a more complex storage architecture, because a shared storage can only be located in one data center and would become a single point of failure. In order to eliminate the potential storage SPOF you have to configure one storage box in each data center and you need storage replication between those boxes. Replication can be synchronous or assynchronious, depe
