Storage architecture for Oracle 11g RAC

Oracle 11g RAC cluster nodes share the same storage array that contains the 11g RAC database. As such, the sizing and choice of the storage is of critical importance for design and implementation of your RAC configuration. By understanding disk I/O with respect to how RAC uses storage disks, you will be able to optimize your design so that performance is optimized from the ground up, rather than reacting to a poor design, which will be more difficult to resolve later.

RAID configurations for Oracle 11g RAC

Oracle RAC performance and availability is greatly affected by the storage subsystem layer of the entire system architecture. As such, your choice of RAID (Redundant Array of Inexpensive Disks) will determine a great deal of database and application performance, as well as how critical tasks such as backup, recovery, and disaster recovery processes are affected.

RAID combines multiple physical hard disks into a single logical unit by using vendor...