Your cluster was originally created with nodes RACNODE1 and RACNODE2 three years ago. Last year, nodes RACNODE3 and RACNODE4 were added. These nodes have faster processors and more local storage…

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• ARun /fs01/home/grid/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/fs01/home/grid
• BRun /fs01/home/grid/oui/bin/runInstaller -updateNodeList ORACLE_HOME=/fs01/home/grid "
• CRun /fs01/home/grid/oui/bin/runInstaller -detachHome ORACLE_HOME=/fs01/home/grid as the
• DRun the /fs01/home/grid/crs/install/rootcrs.pl script as root on each node to be deleted.
• ERun crsctl delete node -n RACNODE1 and crsctl delete node -n RACNODE2 as root from any

• A
  76% (44)
• B
  9% (5)
• C
  16% (9)

Explanation

Deleting a Cluster Node on Linux and UNIX Systems 1. Ensure that Grid_home correctly specifies the full directory path for the Oracle Clusterware home on each node, where Grid_home is the location of the installed Oracle Clusterware 2. Run the following command as either root or the user that installed Oracle Clusterware to determine whether the node you want to delete is active and whether it is pinned: $ olsnodes -s -t If the node is pinned, then run the crsctl unpin css command. Otherwise, proceed to the next 3. Disable the Oracle Clusterware applications and daemons running on the node. Run the rootcrs.pl script as root from the Grid_home/crs/install directory on the node to be deleted, as # ./rootcrs.pl -deconfig -deinstall -force If you are deleting multiple nodes, then run the rootcrs.pl script on each node that you are deleting. If you are deleting all nodes from a cluster, then append the -lastnode option to the preceding command to clear OCR and the voting disks, as follows: # ./rootcrs.pl -deconfig -deinstall -force -lastnode 4. From any node that you are not deleting, run the following command from the Grid_home/bin directory as root to delete the node from the cluster: # crsctl delete node -n node_to_be_deleted Then if you run a dynamic Grid Plug and Play cluster using DHCP and GNS, skip to step 7. 5. On the node you want to delete, run the following command as the user that installed Oracle Clusterware from the Grid_home/oui/bin directory where node_to_be_deleted is the name of the node that you are deleting: $ ./runInstaller -updateNodeList ORACLE_HOME=Grid_home "CLUSTER_NODES= {node_to_be_deleted}" CRS=TRUE -silent -local 6. On the node that you are deleting, depending on whether you have a shared or local Oracle home, complete one of the following procedures as the user that installed Oracle Clusterware: If you have a shared home, then run the following command from the Grid_home/oui/bin directory on the node you want to delete: $ ./runInstaller -detachHome ORACLE_HOME=Grid_home -silent -local For a local home, deinstall the Oracle Clusterware home from the node that you want to delete, as follows, by running the following command, where Grid_home is the path defined for the Oracle Clusterware $ Grid_home/deinstall/deinstall -local 7. On any node other than the node you are deleting, run the following command from the Grid_home/oui/bin directory where remaining_nodes_list is a comma-delimited list of the nodes that are going to remain part of your cluster: $ ./runInstaller -updateNodeList ORACLE_HOME=Grid_home "CLUSTER_NODES= {remaining_nodes_list}" CRS=TRUE -silent 8. Run the following CVU command to verify that the specified nodes have been successfully deleted from the cluster: $ cluvfy stage -post nodedel -n node_list [-verbose] Oracle® Clusterware Administration and Deployment Guide 11g Release 2 (11.2)

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