Best Practices and Recommendations for RAC databases with SGA size over 100GB
(Doc ID 1619155.1)
Last updated on FEBRUARY 03, 2019
Applies to:Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
The goal of this note is to provide best practices and recommendations to users of Oracle Real Application Clusters (RAC) databases using very large SGA (e.g. 100GB) per instance (note that RAC assumes homogeneously sized SGAs across the cluster). This document is compiled and maintained based on Oracle's experience with its global RAC customer base.
This is not meant to replace or supplant the Oracle Documentation set, but rather, it is meant as a supplement to the same. It is imperative that the Oracle Documentation be read, understood, and referenced to provide answers to any questions that may not be clearly addressed by this note.
All recommendations should be carefully reviewed by your own operations group and should only be implemented if the potential gain as measured against the associated risk warrants implementation. Risk assessments can only be made with a detailed knowledge of the system, application, and business environment.
This article applies to all new and existing RAC implementations.
This is for RAC databases only as most of the parameters listed in here are for RAC Database only.
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