Oracle Cluster and DB restart 

While restarting you can start cluster services and then databases .

Stop:

   Stop Agent 

   /u01/app/oracle/agent12c/core/12.1.0.5.0/bin/emctl stop agent

   Stop DB

set db enviroment

srvctl status database -d OBID1 -v

srvctl stop database -d OBID1

         **   srvctl stop database –d OBIP –o immediate

srvctl status instance -i OBID12 -d OBID1  

        -- i instnace name, d database name

   Stop Cluster services

In 11gR2 and beyond, you can start the HA Service Daemon (OHASD) and Clusterware stack in two ways:

    1) The crsctl command is sudo.  sudo -l for path

                User oracle may run the following commands on this host:

                (root) NOPASSWD: /u01/oracle/11.2.0/grid/bin/crsctl

             

              /usr/local/bin/sudo /u01/oracle/11.2.0/grid/bin/ crsctl check crs   

              /usr/local/bin/sudo /u01/oracle/11.2.0/grid/bin/crsctl stop crs

  Check CRS sample output

CRS-4638: Oracle High Availability Services is online

CRS-4537: Cluster Ready Services is online

CRS-4529: Cluster Synchronization Services is online

CRS-4533: Event Manager is online

       2) set asm environment           

                  crsctl status resource -t

                  crsctl stop cluster -all

                  crsctl start has (additional )

  Start: 

     Start Agent 

/u01/app/oracle/agent12c/core/12.1.0.5.0/bin/emctl stop agent

    Start cluster 

    crsctl status resource -t

   crsctl start cluster –all  ( Or usr/local/bin/sudo /u01/oracle/11.2.0/grid/bin/crsctl start crs )

    crsctl start has 

         --Start CRS if needed.  Skip if all cluster resources are online (except DB)

   Start DB 

   srvctl start database -d OBID1