This document provides the network requirements for Oracle RAC 19c installation on a two-nodecluster running Red Hat Enterprise Linux (RHEL) 9 OR Oracle Linux 9Prepared for Client Review and ImplementationsNote that all IPs and Hostnames in this document are just examples.Replace it with your environment’s specific IPs. Network Overview Oracle RAC 19c cluster environment requires at … Continue reading Oracle RAC 19c: Key Network Requirements Explained
Oracle Database Hang, no one was able to connect
What is the problem? I received an email from the client that no one was able to connect to the database this morning (after 8:20 am).This case is a good example to show you how it is important to collect information about the issue from the concerned people before diving into the log files and … Continue reading Oracle Database Hang, no one was able to connect
Oracle Cluster Node is Down, bad news
This is one of the difficult situations for any Oracle DBA, where you may receive wrong/conflicting messages from the end users, you may need to run many commands, examine many lengthy trace files, cooperate with other team members, contact vendor support teams. Yesterday, I got a complaint that the database/application is running very slow. I … Continue reading Oracle Cluster Node is Down, bad news
How to Create Autonomous Datawarehouse Database (Always Free Services)?
https://www.youtube.com/watch?v=nOJowoCyw7Y ThanksAhmed
Protected: Oracle RAC 12c Installation on Linux
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Oracle Database Guard 12c Implementation with RAC (Step-by-Step)
Introduction: This is a real data guard implementation case for one of my clients. Data Guard is implemented between two clusters that reside on two different supercluster machines. The below procedure applies between any two clusters, it doesn't matter if it is a supercluster or Exadata or normal servers. I tried to put as much … Continue reading Oracle Database Guard 12c Implementation with RAC (Step-by-Step)
Protected: Oracle Data Guard 12c Switchover Issues
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Oracle Database Services in (Oracle RAC + Oracle Data Guard) Environment
Introduction: We may classify the database services into two types of services : 1- Database Services 2- Cluster Managed Database Services Please note that: - The procedure dbms_service.start_service - used with the first type - is deprecated in databases managed by Oracle Clusterware and Oracle Restart with Release 11.2. While the procedure remains available in … Continue reading Oracle Database Services in (Oracle RAC + Oracle Data Guard) Environment
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