9.3.5 Pinning Cluster Nodes for Oracle Database Release 11.x

When Oracle Clusterware 12c Release 2 (12.2) is installed on a cluster with no previous Oracle software version, it configures the cluster nodes dynamically, which is compatible with Oracle Database Release 11.2 and later, but Oracle Database 10g and 11.1 require a persistent configuration.

This process of association of a node name with a node number is called pinning.

Note:

During an upgrade, all cluster member nodes are pinned automatically, and no manual pinning is required for existing databases. This procedure is required only if you install earlier database releases after installing Oracle Grid Infrastructure 12c Release 2 (12.2) software.

To pin a node in preparation for installing or using an earlier Oracle Database release, use Grid_home/bin/crsctl with the following command syntax, where nodes is a space-delimited list of one or more nodes in the cluster whose configuration you want to pin:

crsctl pin css -n nodes

For example, to pin nodes node3 and node4, log in as root and enter the following command:

$ crsctl pin css -n node3 node4

To determine if a node is in a pinned or unpinned state, use Grid_home/bin/olsnodes with the following command syntax:

To list all pinned nodes:

olsnodes -t -n

For example:

# /u01/app/12.1.0/grid/bin/olsnodes -t -n
node1 1       Pinned
node2 2       Pinned
node3 3       Pinned
node4 4       Pinned

To list the state of a particular node:

olsnodes -t -n node3

For example:

# /u01/app/12.1.0/grid/bin/olsnodes -t -n node3
node3 3       Pinned