Under the Hoods of Cache Fusion, GES, GRD and GCS

•If I have a 100MB database, I can have a 100 MB buffer cache and I never have to go to the disk, right?
•How does Cache Fusion know where to get the block from?
•I’m confused about Global Cache Service (GCS), Global Resource Directory (GRD) and Global Enqueue Service (GES)
•We will understand how all these actually work

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