Oracle Database 23ai includes several new features for Oracle Real Application Clusters (RAC) that are not supported in Standard Edition 2 (SE2):

Cluster Domain consists of a single Domain Services Cluster (DSC) and one or more Member Clusters. DSC provides many services which can be utilized by Member Clusters.

How many ASM Failure Groups should I create?

What if I have two simultaneous failures of different ASM Failure Groups?

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How to generate AWR report in RAC

ASM Disk Header Status – Per-instance status of the disk as seen by discovery

ASM and Clusterware: Which One is Started First? – If you have used Oracle RAC 10g and 11gR1, you might remember that the Oracle Clusterware stack has to be up before the ASM instance starts …

How to Install asmlibs for Red Hat Enterprise Linux 5

The following are only a few of the most common symptoms/factors that lead to node evictions, cluster stack sudden
death, reboots, and status going unhealthy: