The Oracle RAC database enables multiple instances running on different servers to access the same physical database that is stored in shared storage and attain high performance and high availability (HA).
The following figure shows the logical architecture of a two-layer PowerFlex cluster running Oracle 21c RAC database on bare-metal servers:
The PowerFlex configuration that is described in this reference architecture guide includes a two-layer configuration with three CO nodes and four SO nodes. All the nodes are configured as bare-metal servers.
The three PowerFlex CO nodes are configured with Red Hat Enterprise Linux 8.4, and the PowerFlex 4.0 SDC component is installed in the operating system.
The four PowerFlex SO nodes are also configured with Red Hat Enterprise Linux 8.4, and the PowerFlex 4.0 SDS component is installed in the operating system.
The PowerFlex volumes are created in the PowerFlex Storage Pool and mapped to the PowerFlex CO nodes. The PowerFlex volumes act as ASM disks for the Oracle RAC. The Oracle RAC 21c database is created and installed using the ASM disks.