Deleting a Node from 3 Node RAC
Note
:-- command are marked as orange
Enviornment
1)
RHEL 5.8
2)
Database/Cluster Version 11.2.0.3
3)
GRID_HOME and ORACLE_HOME not shared across
node
Steps
1)
login to node 1
rac1 and run the below command
2)
olsnodes –s –t
[oracle@rac1 ~]$
/u02/app/11.2.0.3/grid/bin/olsnodes -s -t
rac1
Active Unpinned
rac2
Active Unpinned
rac3
Active Unpinned
If the node is pinned, then run the crsctl
unpin css command.
Otherwise, proceed to the next step.
3)
Login to the node which needs to be deleted
stop emagent
4)
/u01/app/oracle/product/11.2.0.3/db_1/bin/emctl stop dbconsole
5)
login to node 3 which needs to be deleted .
Run below command for stopping the cluster running on node3
login as root user
#
/u02/app/11.2.0.3/grid/crs/install/rootcrs.pl –deconfig –force
6)
login to node 1 and run the following command
as root user
# /u02/app/11.2.0.3/grid/bin/crsctl delete node –n rac3
7)
login to node 3 as grid user say oracle run
the below command
$/u02/app/11.2.0.3/grid/oui/bin/runInstaller -updateNodeList
ORACLE_HOME=Grid_home "CLUSTER_NODES={rac3}" CRS=TRUE -silent –local
8)
login to node 3run the command
as grid user say “oracle”
$/u02/app/11.2.0.3/grid/deinstall/deinstall –local
9)
login to node 1 and run the below command as
grid user say “oracle”
$/u02/app/11.2.0.3/grid/oui/bin/runInstaller -updateNodeList
ORACLE_HOME=Grid_home "CLUSTER_NODES={rac1,rac2}" CRS=TRUE –silent
10)
Run the command from node 1 as grid user say
“oracle”
$ /u02/app/11.2.0.3/grid//bin/cluvfy stage -post nodedel -n rac3
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