Quick steps to remove nodes from cluster
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Summary
This passage will leads you to remove nodes in cluster.
This passage is specified to remove admin managed RAC DB node.
Remove RAC nodes
- Delete instance on nodes to be deleted using DBCA.
- Update inventory on nodes to be deleted using
$DB_HOME/runInstaller -updateNodeList ORACLE_HOME=$DB_HOME "CLUSTER_NODES={<name_of_node_to_delete>}" -local
. - Remove RAC software using
$DB_HOME/deinstall/deinstall –local
. - Update inventory on remaining nodes using
$DB_HOME/runInstaller -updateNodeList ORACLE_HOME=Oracle_home_location "CLUSTER_NODES={<remaining_node_list>}"
.
Remove GI nodes
- De-config GI on nodes to be deleted using
$GI_HOME/crs/install/rootcrs.pl -deconfig –force
. - Delete nodes on remaining nodes using
crsctl delete node –n nodes_to_be_deleted
. - Update inventory on nodes to be deleted using
$GI_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME=$GI_HOME "CLUSTER_NODES={<name_of_node_to_delete>}" CRS=TRUE -silent –local
. - Remove GI software using
$GI_HOME/deinstall/deinstall –local
. - Update inventory on remaining nodes using
$GI_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME=Grid_home "CLUSTER_NODES={<remaining_node_list>}" CRS=TRUE –silent
. - Use CVU to check if deletion if completed successfully
cluvfy stage -post nodedel -n node_list
.
Document reference
- Adding and Deleting Oracle RAC from Nodes on Linux and UNIX Systems
- Adding and Deleting Cluster Nodes
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