Options for Oracle Grid Infrastructure Upgrades

When you upgrade to Oracle Grid Infrastructure 18c, you upgrade to an Oracle Flex Cluster configuration.

Supported upgrade paths for Oracle Grid Infrastructure for this release are:

• Oracle Grid Infrastructure upgrade from releases 11.2.0.3 and 11.2.0.4 to Oracle Grid Infrastructure 18c.

• Oracle Grid Infrastructure upgrade from Oracle Grid Infrastructure 12c Release 1 (12.1.0.2) to Oracle Grid Infrastructure 18c.

• Oracle Grid Infrastructure upgrade from Oracle Grid Infrastructure 12c Release 2 (12.2) to Oracle Grid Infrastructure 18c.

Upgrade options from Oracle Grid Infrastructure 11g, Oracle Grid Infrastructure 12c Release 1 (12.1.0.2), and Oracle Grid Infrastructure 12c Release 2 (12.2) to Oracle Grid Infrastructure 18c include the following:

• Oracle Grid Infrastructure rolling upgrade which involves upgrading individual nodes without stopping Oracle Grid Infrastructure on other nodes in the cluster

• Oracle Grid Infrastructure non-rolling upgrade by bringing the cluster down and upgrading the complete cluster

Note:

• When you upgrade to Oracle Grid Infrastructure 18c, you upgrade to an Oracle Standalone Cluster configuration.

• If storage for OCR and voting files is other than Oracle ASM, you need to migrate OCR and voting files to Oracle ASM before upgrading to Oracle Grid Infrastructure 18c.