If you need to patch a DataGuard environment in exclusive non-rolling mode, you might use:

To resolve this issue, bypass the default automated orchestration by passing the explicit -nonrolling parameter to the execution engine. Follow these steps precisely: Step 1: Drain and Stop Cluster Services on Remote Nodes

: Tells the utility to patch all nodes at once rather than one-by-one.

The utility determined that executing the patch in a non-rolling fashion on the current node violates the cluster state topology. Step-by-Step Troubleshooting and Resolution

Common causes:

Patches are applied to one node while others remain active. This requires a non-shared (local) Grid Home.

To execute OPatchauto72030 in non-rolling mode exclusive, follow these steps:

Before overriding any patch states, check the actual condition of your Grid Infrastructure stack. Run the following as the root or grid user:

This is arguably the most critical keyword. It defines the patching .