Deployment Guide

Deployment Guide 49
Removing a Node From the Clusterware Layer
1 Disable CRS on the node that you are deleting by typing the following as the user root :
/opt/oracle/product/10.1.0/crs_1/install/rootdelete.sh remote
nosharedvar
2
On one of the remaining nodes, as the user root , type the following:
/opt/oracle/product/10.1.0/crs_1/install/rootdeletenode.sh
<public nodename>, <node-number>
To determine the node number of any node, type the following:
/opt/oracle/product/10.1.0/crs_1/bin/olsnodes -n
3
On the node that you are deleting, if you wish to remove the Oracle CRS software, type the following:
rm -rf /opt/oracle/product/10.1.0/crs_1/*
Removing a Node From the OCFS2 Cluster
1 Perform the following steps on the node to be deleted:
a Log in as root .
b Unmount the mounted OCFS2 volumes by typing:
umount –a –t ocfs2
c Stop the O2CB service by typing:
/etc/init.d/o2cb stop
d Disable the O2CB service by typing:
/etc/init.d/o2cb disable
e Remove the OCFS2 entry from the /etc/fstab file.
f Remove the OCFS2 configuration file by typing:
rm –f /etc/ocfs2/cluster.conf
2
Stop the database instances on all the nodes by typing the following command on any one
of the existing nodes
as the user oracle :
srvctl stop database –d <database name>
3
Stop the CRS service and unmount the OCFS2 volumes by typing the following commands
on
all the nodes :
/etc/init.d/init.crs stop
umount –a –t ocfs2