Services are offered with different architectures, depending on the feature a service is capable of.
Cloud service instances are offered by a Cloud Service Provider and are resold in the VSHN Application Catalog marketplace. Features and service levels of these instances adhere to what the service offering of the cloud provider provides.
These services are running inside the same Kubernetes Cluster as the service was ordered in, this is also called a Converged service.
A single node instance which is neither replicated nor clustered. It’s the most straightforward and easy architecture of a service.
The service offers data replication to one or more other replicas. It heavily depends on what the service itself is able to offer in terms of data replication.
A fully clustered version of the service, usually offering active / active replication with fully automated cluster handling. This can have implication on the client application on how the connection to a service happens. It heavily depends on what the service itself is able to offer in terms of clustering.