Owner's Manual

Deployment Guide 53
Removing a Node From the Oracle Clusterware Layer
1 On the node that you are deleting, as user root , disable CRS by typing the following command:
/crs/oracle/product/10.2.0/crs/install/rootdelete.sh remote nosharedvar
2
On one of the remaining nodes, as user root , type the following command:
/crs/oracle/product/10.2.0/crs/install/rootdeletenode.sh
<public nodename>, <node-number>
Where <public-nodename> is public name and <node-number> is the node number of the node
being deleted.
To determine the node number of any node, type the following command:
/crs/oracle/product/10.2.0/crs/bin/olsnodes -n
3
On the node that you are deleting, if you wish to remove the Oracle CRS software, type the
following command:
rm -rf /crs/oracle/product/10.2.0/crs/*
Reinstalling the Software
NOTICE: Reinstalling the software erases all information on the hard drives.
NOTICE: You must disconnect all external storage devices from the system before you reinstall the software.
NOTICE: Dell recommends that you perform regular backups of your database and individual nodes so that you do
not lose valuable data. Reinstall the node software only if you have no other options.
Installing the software using the Dell Deployment CD created a redeployment partition on your hard drive
that contains all of the software images that were installed on your system. The redeployment partition
allows for quick redeployment of the Oracle software.
Reinstalling the software by using this method requires that you boot the system to the redeployment
partition. When the system boots to this partition, it automatically reinstalls the Red Hat Linux
operating system.
To reinstall software using this method, perform the following steps:
1
Disconnect the external storage device.
2 Log in as root on the system on which you want to reinstall the software.
3 Edit the grub configuration file by typing:
vi /etc/grub.conf
and press <Enter>.
4 In the file, change the default to 3 .
5 Save the file and restart your system.