My Oracle Support Banner

Tuning Inter-Instance Performance in RAC and OPS (Doc ID 181489.1)

Last updated on MARCH 08, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud 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
Generic UNIX


This note was written to help DBAs and Support Analysts understand Inter-Instance Performance and Tuning in RAC.


Real Application Clusters uses the interconnect to transfer blocks and messages between instances. If inter-instance performance is bad, almost all database
operations can be delayed. This note describes methods of identifying and resolving inter-instance performance issues.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.