Note – Database zones can only be created on Database Domains that are dedicated domains. The information in this section applies to database zones and Database Domains that are dedicated domains.
The amount of memory resources available for database zones depends on the amount of memory resources that you have assigned to the Database Domain, and then how you want to divide those memory resources up for the database zones within that Database Domain.
For example, assume you have a Database Domain that has two CMIOUs. By default, 960 GB of memory is available to that Database Domain. You can therefore have four equal-sized database zones within that Database Domain, where each database zone has 200 GB of memory assigned to it, for a total of 800 GB of memory for all database zones. The remaining 160 GB of memory in this Database Domain can be saved for future database zones that you might want to create on this Database Domain.