1. Grid Infrastructure Installation and Upgrade Guide
  2. Upgrading Oracle Grid Infrastructure
  3. Downgrading Oracle Clusterware to an Earlier Release
  4. Restrictions for Oracle Grid Infrastructure Downgrades

Restrictions for Oracle Grid Infrastructure Downgrades

Review the following information for restrictions and changes for downgrading Oracle Grid Infrastructure installations.

  • When downgrading Oracle Member Cluster to 12c Release 2 (12.2), you must start Oracle Clusterware on last downgraded node first and then on other nodes.

  • When you downgrade from an Oracle Grid Infrastructure 12c Release 2 (12.2) or later releases to Oracle Grid Infrastructure 11g Release 2 (11.2), you downgrade from an Oracle Flex cluster configuration to a Standard cluster configuration since all cluster configurations in releases earlier than Oracle Grid Infrastructure 12c are Standard cluster configurations.

  • You can only downgrade to the Oracle Grid Infrastructure release you upgraded from. For example, if you upgraded from Oracle Grid Infrastructure 11g Release 2 (11.2) to Oracle Grid Infrastructure 19c, you can only downgrade to Oracle Grid Infrastructure 11g Release 2 (11.2).

Parent topic: Downgrading Oracle Clusterware to an Earlier Release