Deinstall Oracle RAC 11.2 Environment
1. Check Oracle Home location
more /etc/oratab ( in linux,aix,hpux)
more /var/opt/oracle/oratab ( in solaris)
2. Go to home location and deinstall
$ cd $ORACLE_HOME/deinstall
$ ./deinstall
3. Run on all nodes of rac expect last node for execute 4 step command.
$ORA_CRS_HOME/crs/install/rootcrs.pl -verbose -deconfig -force
4. Run on Last Node execute the following command:
$ORA_CRS_HOME/crs/install/rootcrs.pl -verbose -deconfig -force -lastnode
5. Go to grid/cluster home:
$ORA_CRS_HOME/deinstall/deinstall
./deinstall
6. Execute the command mention in above command generate log on each node
Run the following command as the root user or the administrator on node "vrh3".
/tmp/deinstall2011-08-31_11-59-55PM/perl/bin/perl -I/tmp/deinstall2011-08-31_11-59-55PM/perl/lib
-I/tmp/deinstall2011-08-31_11-59-55PM/crs/install /tmp/deinstall2011-08-31_11-59-55PM/crs/install/rootcrs.pl
-force -deconfig -paramfile "/tmp/deinstall2011-08-31_11-59-55PM/response/deinstall_Ora11g_gridinfrahome1.rsp"
7. Remove from temp directories
rm -f /var/tmp/.oracle
or
rm -f /tmp/.oracle
