SAP Instance Concept
* An SAP Instance is the basic building block of an SAP system & can comprise of one or more SAP instances * An SAP system comprises of 2 parts : Application Instance & Database Instance * When the application & database instance reside on the same hardware , it is then known as a [...]
AS ABAP Architecture
Architecture showing the interaction between ABAP processes in a SAP system with a Central Instance and 1 Dialog Instance. Note that there is no enqueue process within the dialog instance. * The AS ABAP Message Server process is for internal communication. For example initiating updates , requesting/removing locks , triggering background requests etc. * It [...]
