About Oracle Data Hub Cloud Service Clusters in Oracle Cloud Infrastructure

You can create Oracle Data Hub Cloud Service clusters in Oracle Cloud Infrastructure and in Oracle Cloud Infrastructure Classic.

The platform that your cluster provides in either type of infrastructure is substantially the same. A few differences exist in the underlying infrastructure components and in the supported capabilities. Awareness of these differences will help you choose an appropriate infrastructure when creating a cluster.

  • Prerequisite steps before creating your first cluster: Oracle Data Hub Cloud Service clusters in Oracle Cloud Infrastructure require certain networking and storage resources that you must create in Oracle Cloud Infrastructure before you create your first cluster.

    To learn about these resources, see Prerequisites for Oracle Platform Services in the Oracle Cloud Infrastructure documentation.

    For step-by-step instructions to create these resources, see Tutorial Icon Creating the Infrastructure Resources Required for Oracle Platform Services.

  • Regions and availability domains: While creating a cluster, you select a region in Oracle Cloud Infrastructure Classic or Oracle Cloud Infrastructure. If you select a region in Oracle Cloud Infrastructure, then you also select an Availability Domain. A region in Oracle Cloud Infrastructure has multiple isolated availability domains, each with separate power and cooling. The availability domains within a region are interconnected using a low-latency network.

  • Compute shapes: The range of compute shapes that you can select from when creating a cluster is different for Oracle Cloud Infrastructure and Oracle Cloud Infrastructure Classic.

  • Subnets and IP networks: In Oracle Cloud Infrastructure, you must attach each cluster to a subnet, which is a part of a virtual cloud network that you create in Oracle Cloud Infrastructure. In Oracle Cloud Infrastructure Classic, you can optionally attach a cluster to an IP network that you define beforehand.

  • IP address reservation: For clusters that you create in Oracle Cloud Infrastructure Classic, you can assign pre-reserved public IP addresses to the cluster nodes. IP reservations aren’t supported for clusters created in Oracle Cloud Infrastructure.

  • Backups to cloud storage: In Oracle Cloud Infrastructure, an Oracle Cloud Infrastructure Object Storage bucket is used to store backups to cloud storage. You must create a storage bucket before you create the cluster configured to back up to cloud storage. In Oracle Cloud Infrastructure Classic, an Oracle Cloud Infrastructure Object Storage Classic container is used to store backups to cloud storage. You can create a storage container before you create the cluster configured to back up to cloud storage, or you can have a storage container created at the same time as the cluster.

  • Network access to clusters: Regardless of the infrastructure that you create your cluster in, the rules to provide network access to the clusters are preconfigured for you. The interfaces that you use to manage these rules depend on the infrastructure that the cluster is created in:

    • For clusters in Oracle Cloud Infrastructure, you configure the rules, called security rules, in the Oracle Cloud Infrastructure interfaces.

    • For clusters in Oracle Cloud Infrastructure Classic, you configure the rules, called access rules, in the Oracle Data Hub Cloud Service interfaces. Note that these access rules prohibit access by default (with the exception of SSH access on port 22), and you must enable them to provide access to other ports.

  • Scaling nodes: In Oracle Cloud Infrastructure, you cannot scale the shape of the nodes in the cluster; you can scale only the storage. The minimum size of a new storage volume in Oracle Cloud Infrastructure is 50 GB.

  • QuickStart template: You can create a cluster by using a QuickStart template in Oracle Cloud Infrastructure Classic. QuickStart templates cannot be used to create clusters in Oracle Cloud Infrastructure.