This KB is for a short comparison of Dynamic DB & Ephemeral DB

Below are the basic comparison of these DBs.

> Cross-referencing the ephemeral / dynamic db from the static config file

Dynamic-Yes, Ephemeral-No

> Behavior if policy is not defined

Dynamic - Fail Open, Ephemeral - User Defined

> Override possible

Dynamic-No, Ephemeral-"Overrides Static"

> Sharding Support

Dynamic-No, Ephemeral-Yes

Additionally, there is no persistency for both across reboot/upgrades.

And the fragmentation issue is seen for both, but ephemeral can have upto 8 instances.