PURPOSE

-------

The purpose of this document is to help DBA's and support analysts understand how

to clean up a failed CRS (Cluster Ready Services) install for 10g RAC.

SCOPE & APPLICATION

-------------------

DBA's and Support Analysts

10g RAC: How to Clean Up After a Failed CRS Install

---------------------------------------------------

Not cleaning up a failed CRS install can cause problems like node reboots.

Follow these steps to clean up a failed CRS install:

1. Run the rootdelete.sh script. then the rootdeinstall.sh script. from the

$ORA_CRS_HOME/install directory on any nodes you are removing CRS from. Running

these scripts should be sufficent to clean up your CRS install. Rootdelete.sh

accepts options like nosharedvar/sharedvar, and nosharedhome/sharedhome. Make

yourself familiar with these options by reading the Oracle Clusterware and

Oracle Real Application Clusters Administration and Deployment Guide.

If you have any problems with these scripts please open a service request.

If for some reason you have to manually remove the install due to problems

with the scripts, continue to step 2:

2. Stop the Nodeapps on all nodes:

srvctl stop nodeapps -n

3. Prevent CRS from starting when the node boots. To do this issue the following

as root:

Sun:

rm /etc/init.d/init.cssd

rm /etc/init.d/init.crs

rm /etc/init.d/init.crsd

rm /etc/init.d/init.evmd

rm /etc/rc3.d/K96init.crs

rm /etc/rc3.d/S96init.crs

rm -Rf /var/opt/oracle/scls_scr

rm -Rf /var/opt/oracle/oprocd

rm /etc/inittab.crs

cp /etc/inittab.orig /etc/inittab

Linux:

rm /etc/oracle/*

rm -f /etc/init.d/init.cssd

rm -f /etc/init.d/init.crs

rm -f /etc/init.d/init.crsd

rm -f /etc/init.d/init.evmd

rm -f /etc/rc2.d/K96init.crs

rm -f /etc/rc2.d/S96init.crs

rm -f /etc/rc3.d/K96init.crs

rm -f /etc/rc3.d/S96init.crs

rm -f /etc/rc5.d/K96init.crs

rm -f /etc/rc5.d/S96init.crs

rm -Rf /etc/oracle/scls_scr

rm -f /etc/inittab.crs

cp /etc/inittab.orig /etc/inittab

HP-UX:

rm /sbin/init.d/init.cssd

rm /sbin/init.d/init.crs

rm /sbin/init.d/init.crsd

rm /sbin/init.d/init.evmd

rm /sbin/rc2.d/K960init.crs

rm /sbin/rc2.d/K001init.crs

rm /sbin/rc3.d/K960init.crs

rm /sbin/rc3.d/S960init.crs

rm -Rf /var/opt/oracle/scls_scr

rm -Rf /var/opt/oracle/oprocd

rm /etc/inittab.crs

cp /etc/inittab.orig /etc/inittab

HP Tru64:

rm /sbin/init.d/init.cssd

rm /sbin/init.d/init.crs

rm /sbin/init.d/init.crsd

rm /sbin/init.d/init.evmd

rm /sbin/rc3.d/K96init.crs

rm /sbin/rc3.d/S96init.crs

rm -Rf /var/opt/oracle/scls_scr

rm -Rf /var/opt/oracle/oprocd

rm /etc/inittab.crs

cp /etc/inittab.orig /etc/inittab

IBM AIX:

rm /etc/init.cssd

rm /etc/init.crs

rm /etc/init.crsd

rm /etc/init.evmd

rm /etc/rc.d/rc2.d/K96init.crs

rm /etc/rc.d/rc2.d/S96init.crs

rm -Rf /etc/oracle/scls_scr

rm -Rf /etc/oracle/oprocd

rm /etc/inittab.crs

cp /etc/inittab.orig /etc/inittab

4. If they are not already down, kill off EVM, CRS, and CSS processes or reboot

the node:

ps -ef | grep crs

kill

ps -ef | grep evm

kill

ps -ef | grep css

kill

Do not kill any OS processes, for example icssvr_daemon process !

5. If there is no other Oracle software running (like listeners, DB's, etc...),

you can remove the files in /var/tmp/.oracle or /tmp/.oracle. Example:

rm -f /var/tmp/.oracle/*

or

rm -f /tmp/.oracle/*

6. Remove the ocr.loc

Usually the ocr.loc can be found at /etc/oracle

7. De-install the CRS home in the Oracle Universal Installer

8. Remove the CRS install location:

rm -Rf /*

9. Clean out the OCR and Voting Files with dd commands. Example:

dd if=/dev/zero f=/dev/rdsk/V1064_vote_01_20m.dbf bs=1M count=256

dd if=/dev/zero f=/dev/rdsk/ocrV1064_100m.ora bs=1M count=256

See the Clusterware Installation Guide for sizing requirements...

If you placed the OCR and voting disk on a shared filesystem, remove them.

If you are removing the RDBMS installation, also clean out any ASM disks if

they have already been used.

10. It is good practice to reboot the node before starting the next install.

11.If you would like to re-install CRS, follow the steps in the RAC Installation

manual.