Oracle Exadata Database Machine features scale-out industry-standard database servers, scale-out intelligent storage servers, and high-speed internal RDMA Network Fabric that connects the database and storage servers.
In a single rack, you can start with a base configuration containing two database servers and three storage servers and expand to an elastic configuration with up to 19 database and storage servers in total.
Exadata Database Machine also includes network switches to connect the database servers to the storage servers, and you can add an optional spine switch to connect multiple racks.
Note: All specifications are for Exadata X11M racks. See the related resources for more details about Exadata X11M and information about prior models.