Grid Infrastructure: Switch from PSU to PBP

The recommendation from Oracle is to switch from Patch Set Update (PSU) to Proactive Bundle Patch (PBP) only by installing a new patchset or release. i.e 12.1.0.1 to 12.1.0.2 or 12.1.0.X to 12.2.0.1. But it’s possible at any time even rolling.

The idea is quite simple:

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