Hi Mark,
Upside of combined engine:
- Singular maintenance, upgrades & support to both
- Default configurations work for provisioning masked VDBs.
Downside
- Sharing of resources may cause performance bottlenecks if not sized properly.
Pros of dedicated standalone ME
- Dedicated resources allows more /faster masking jobs.
- Ideal fit in many architectures ( like SDD)
Dedicated Standalone Masking engine alongside Delphix Virtualization Engine is recommended approach in most solution architectures.
--Hims