GIS Environment in Azure - Database ( Oracle ) On-Prem - Performance

[MDPSAdmin]

How is the performance of a Feature Service published to our GIS Environment in Azure with the Data coming from a Registered Oracle DB which is On Prem.   ArcGIS Pro also On Prem, to publish.

[George_Thompson]

This is not a recommended pattern for deployment. It is recommended to have the Enterprise Geodatabase in the same location as the ArcGIS Enterprise deployment. This help says "AWS" but is still applicable to Azure; https://enterprise.arcgis.com/en/server/latest/cloud/amazon/geodatabases-and-arcgis-server-on-aws.ht....

Note:

When your client, data source, and ArcGIS Enterprise are not deployed in the same location, you will likely experience degraded performance when data is sent between an on-premises component and the cloud.

Azure link: https://enterprise.arcgis.com/en/server/latest/cloud/azure/add-registered-databases.htm 

• A registered database that contains a geodatabase—You can add an enterprise geodatabase to store source data on Azure. To create datasets in the geodatabase, connect to it from an ArcGIS Pro client running in the same region on Azure. Once the geodatabase contains data, you can connect to it from this client and publish services that reference this data.