Oracle SuperCluster NTP Configuration and Best Practices (Doc ID 2108061.1)

Last updated on APRIL 22, 2021

Applies to:

Oracle SuperCluster M8 Hardware - Version All Versions and later
Oracle SuperCluster M7 Hardware - Version All Versions and later
Oracle SuperCluster T5-8 Hardware - Version All Versions and later
Oracle SuperCluster M6-32 Hardware - Version All Versions and later
SPARC SuperCluster T4-4 - Version All Versions and later
Oracle Solaris on SPARC (64-bit)

Purpose

The goal of this document is to present the best practices for the deployment of NTP on Oracle SuperCluster.

Scope

General audience working on Oracle SuperCluster Systems

Details

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In this Document

/etc/inet/ntp.conf file must exist in each database zone; the file must be empty or contain only comments

A valid ntp.conf file must exist in the Global Zone of the Database Domain

Exactly one ntpd daemon must be active on the Database domain, and must run in the Global Zone.

Existing ntp.conf files in non-Database (Application) Zones must be empty

Verify the state of the ntp.conf file in all unbooted Application Zones in a Database Domain

Verify the state of the ntp.conf file in all unbooted Database Zones in a Database Domain

Starting with Solaris 11.3, all non-global zones (Database or Application) must be configured without "sys_time" and with global-time=true

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