In the pervious article we have explained the Upgrade Grid Infrastructure 12c To 19c Oracle Now We will explain the steps for downgrade oracle 19c 2 node GRID to oracle 12.1.0.2 GRID.
ENVIRONMENT DETAILS:
2 NODES – localhost1 and localhost2
Grid owner – oracle
19C ORACLE_HOME(current) – > /sharearea/crs/grid19c
12C ORACLE_HOME (old) -> /crs/app/oracle/product/grid12c
1. Check the current grid version:( check on both the nodes)
oracle@localhost1:/$ crsctl query crs softwareversion Oracle Clusterware version on node [dbhost1] is [19.0.0.0.0] oracle@localhost1:$ crsctl… Read more