Oracle Real Application Clusters (RAC) 19c Upgrade Paths, Best Practices, Tips & Tricks

Today's post is a shout out to a very beneficial presentation by Anil Nair Oracle Senior Principal Product Manager on Oracle Real Application Clusters (RAC) 19c Upgrade Paths, Best Practices, Tips & Tricks.

Here is a brief summary of the presentation by Anil:

• Lifetime Support Policy Schedule.
• Oracle 12.2 Release Family & 19c.
• Future Projections for Upgrades.
• Oracle 19c requires Linux 7.
• How to upgrade to Linux 7 with least downtime.
• Alternative Paths to OS Upgrades.
• Latest ORAChk = ORAChk + CLUVFY + Autoupgrade.jar + Application Continuity & Security Related Checks.
• orachk -preupgrade = One Command for all Autoupgrade Checks.
• State of Grid Infrastructure Management Repository (GIMR).
• gridSetup can now be used with -dryRunForUpgrade option.
• Real Only Oracle Home (ROOH).
• Faster Patching with -SwitchHome.
• Upgrade Best Practices Summary.
• Whats New for Oracle 19c Grid Infrastructure (GI)?
• New GI Resource Modeling for PDBs (New).
• Oracle Clusterware Start Diagnostics (New).
• Auto-Diagnosis of unsuccessful startup issues (New).
• New Clusterware Monitor Thread & Processes (New).
• Private Network Interface Check (New).
• Oracle Clusterware Ciphers (New).
• Human Readable Messages in Trace Files for faster issue resolution (New).
• Whats New with Oracle Cache Fusion?
• Optimized Resource Master Placement (New).
• Zero Downtime for Planned Outages (New).
• Smart DRM (New).
• Rolling Windows to reduce reconfiguration impact (New).
• RAC Performance Automation.
• Exadata RAC Optimizations.
• Cache Fusion Optimizations on Exadata.

To summarize, upgrading to Oracle RAC 19c comes with lots of improvements, automations and optimizations to make the DBA's life easier than before. Check out Anil's presentation here.

Enjoy the new features by upgrading to Oracle RAC 19c.

Cheers.