How to shutdown / startup rac instances

How to shutdown / startup rac instances:-
1. Shutdown Oracle Home process accessing database.
2. Shutdown RAC Database Instances on all nodes.
3. Shutdown Node applications running on nodes.
4. Shut down the Oracle Cluster ware or CRS.

#Stopping enterprise manager:-
[oracle@rac1 ~]$ emctl stop dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.2.0
Copyright (c) 1996, 2010 Oracle Corporation.  All rights reserved.
https://rac1.soumya.com:1158/em/console/aboutApplication
Stopping Oracle Enterprise Manager 11g Database Control ...
 ...  Stopped.

#Stopping and checking status of listener:-
[oracle@rac1 ~]$ srvctl stop listener -n rac1

oracle@rac1 ~]$ srvctl status listener -n rac1
Listener LISTENER is enabled on node(s): rac1
Listener LISTENER is not running on node(s): rac1

[oracle@rac1 ~]$ srvctl status database -d rac
Instance rac1 is running on node rac1
Instance rac2 is running on node rac2

#Shutting down Rac database instance in all nodes:-
[oracle@rac1 ~]$ srvctl status database -d rac
Instance rac1 is  running on node rac1
Instance rac2 is  running on node rac2

[oracle@rac1 ~]$ srvctl stop database -d rac

[oracle@rac1 ~]$ srvctl status database -d rac
Instance rac1 is not running on node rac1
Instance rac2 is not running on node rac2


#Shutdown Node applications running on nodes:-
[oracle@rac1 ~]$ srvctl stop nodeapps -n rac1 -f
[oracle@rac1 ~]$ srvctl status nodeapps -n rac1
-n <node_name> option has been deprecated.
VIP rac1-vip is enabled
VIP rac1-vip is not running
Network is enabled
Network is not running on node: rac1
GSD is disabled
GSD is not running on node: rac1
ONS is enabled
ONS daemon is not running on node: rac1
eONS is enabled
eONS daemon is not running on node: rac1

#Shut down the Oracle Clusterware or CRS:-
This command would work from root user.
[root@rac1 ]# cd /u01/app/11.2.0/grid/bin
[root@rac1 bin]# ./crsctl check cluster -all
**************************************************************
rac1:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
rac2:
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online

To stop the CRS:-
[root@rac1 ]# cd /u01/app/11.2.0/grid/bin
[root@rac1 bin]# ./crsctl stop crs
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.crsd' on 'rac1'
CRS-2677: Stop of 'ora.crsd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssdmonitor' on 'rac1'
CRS-2673: Attempting to stop 'ora.ctssd' on 'rac1'
CRS-2673: Attempting to stop 'ora.evmd' on 'rac1'
CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac1'
CRS-2677: Stop of 'ora.cssdmonitor' on 'rac1' succeeded
CRS-2677: Stop of 'ora.evmd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.mdnsd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.ctssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'rac1'
CRS-2677: Stop of 'ora.cssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac1'
CRS-2673: Attempting to stop 'ora.diskmon' on 'rac1'
CRS-2677: Stop of 'ora.gpnpd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.gipcd' on 'rac1'
CRS-2677: Stop of 'ora.gipcd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.diskmon' on 'rac1' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac1' has completed
CRS-4133: Oracle High Availability Services has been stopped.


#Start Oracle Clusterware or CRS:-
[root@rac1 ]# cd /u01/app/11.2.0/grid/bin
[root@rac1 bin]# ./crsctl start crs
CRS-4123: Oracle High Availability Services has been started.

To check cluster status:-
[root@rac1 bin]# ./crsctl check cluster -all
**************************************************************
rac1:
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************
rac2:
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
**************************************************************

#Start Node applications running on nodes:-
[oracle@rac1 ~]$ srvctl start nodeapps -n node1
oracle@rac1 ~]$ srvctl status nodeapps -n rac1
-n <node_name> option has been deprecated.
VIP rac1-vip is enabled
VIP rac1-vip is running on node: rac1
Network is enabled
Network is running on node: rac1
GSD is disabled
GSD is not running on node: rac1
ONS is enabled
ONS daemon is running on node: rac1
eONS is enabled
eONS daemon is running on node: rac1


#Start RAC Database Instances on all nodes:-
[oracle@rac1 ~]$ srvctl start database -d rac

To check rac instance status:-
oracle@rac1 ~]$ srvctl status database -d rac
Instance rac1 is running on node rac1
Instance rac2 is running on node rac2

#Start Oracle Home process accessing database:-
oracle@rac1 ~]$ srvctl start listener -n rac1

[oracle@rac1 ~]$ srvctl status listener -n rac1
Listener LISTENER is enabled on node(s): rac1
Listener LISTENER is running on node(s): rac1

[oracle@rac1 ~]$ srvctl status listener -n rac2
Listener LISTENER is enabled on node(s): rac2
Listener LISTENER is running on node(s): rac2

#To start enterpriese manager:-
[oracle@rac1 ~]$emctl start dbconsole