Oracle RAC 12C to 19C ASM Upgradation
PREREQUISITE FOR UPGRADE:
- Apply required patches on grid home and oracle home. To apply patch on RAC Database , refer this blog : https://learnomate.org/rac-19c-patching/
STEP:1 Create 19C Directory on Both Node
mkdir -p /u02/app/grid/product/19C/dbhome chown -R grid:oinstall /u02 chmod -R 775 /u02
STEP 2: Copy the 19c grid software to the first node of RAC and unzip it:
cd u02/app/grid/product/19C/dbhome Unzip LINUX.X64_193000_grid_home.zip-------------------------on Node 1
Step 3. Run cluvfy utility to pre-check any errors On 1st node only run the pre-upgrade script from the new home and generate a fix script if generated. as grid user.
su - grid cd /u02/app/grid/product/19C/dbhome -- 19c grid home ./runcluvfy.sh stage -pre crsinst -upgrade -rolling -src_crshome /u02/app/grid/product/12C/dbhome -dest_crshome p /u02/app/grid/product/19C/dbhome -dest_version 220.127.116.11.0 -fixup –verboseNote: Make sure the cluvfy is executed successfully. If any error occurs, take action before going to the GRID 12c upgrade.
Step 4. Using Dry-Run Upgrade Mode to Check System Upgrade Readiness
cd /u02/app/grid/product/19C/dbhome gridsetup.sh –dryRunForUpgrade