My Oracle Support Banner

Default CPU_COUNT Value In ASM Instance (Doc ID 2623626.1)

Last updated on JANUARY 27, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 19.3.0.0.0 and later
Oracle Database - Standard Edition - Version 19.3.0.0.0 and later
Information in this document applies to any platform.

Symptoms

This document describes the default value of CPU_COUNT in an ASM instance, when a value is not explicitly set.

Oracle Database Reference document describes the following:



https://docs.oracle.com/en/database/oracle/oracle-database/19/refrn/CPU_COUNT.html

CPU_COUNT

:
When a value is not explicitly set for CPU_COUNT,
the maximum default value for CPU_COUNT is 2 for an Oracle ASM Proxy instance,
4 for an Oracle ASM instance, and 8 for an Oracle IOServer instance.

However, on 19c, it is possible for CPU_COUNT to go over 4 when there are more cpu cores.

 

Cause

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

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


In this Document
Symptoms
Cause
Solution
References


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