Oracle ASM 21c uses disk groups to store data files; an Oracle ASM disk group is a collection of disks that Oracle ASM manages as a unit. Within a disk group, Oracle ASM exposes a file system interface for Oracle Database files. The content of files that are stored in a disk group is evenly distributed to eliminate hot spots and to provide uniform performance across the disks. The performance is comparable to the performance of raw devices.
Unlike a file system driver failure, an Oracle ASM 21c instance failure does not require restarting the operating system. In an Oracle RAC environment, the Oracle ASM and database instances on the surviving nodes automatically recover from an Oracle ASM instance failure on a node.
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Sachin Srivastava
Sachin Srivastava is a Business Analytics and Data Science consultant. He has over twenty two years of experience in the IT industry working on enterprise resource planning (ERP) systems, implementing predictive analytics solutions in business systems and IT Infrastructure (including DB, Cloud, Networking, DR, Applications). An enthusiastic and passionate professional about technology and innovation. He also enjoys reading, writing, and networking. Sachin holds a Masters in Computer.
