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Database Cloud Storage: The Essential Guide to Oracle Automatic Storage Management by Prasad Bagal, Nitin Vengurlekar

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CHAPTER
9
ASM Operations
This chapter describes the flow of the critical operations for ASM disk groups and files. It also describes the key interactions between the ASM and relational database management system (RDBMS) instances.
Note that many of these ASM operations have been optimized in Engineered Systems (Exadata and ODA) and thus have significantly different behavior. Chapter 12 covers these optimizations. This chapter describes ASM operations in non–Engineered Systems.
ASM Instance Discovery
The first time an RDBMS instance tries to access an ASM file, it needs to establish its connection to the local ASM instance. Rather than requiring ...

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