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Relationship between Allocation units and oracle blocks

edited Mar 6, 2014 9:10AM in Database - RAC/Scalability (MOSC) 9 commentsAnswered ✓

Hi,

In ASM, we see that extents are allocated with AU's and extent maps are stored in SGA. Since, last level of storage is in allocation units, what happens to oracle blocks in ASM. We create tablespaces with pct free and pct used values and we change the values of pct free in tables.

1)What happens to these values(Block related parameters like pct used, pct free etc..) in ASM when allocation units come in to the picture.

2)How allocation units are read in to database buffer cache? As AU's or DB blocks?

Gautham

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