####################################################################
# How to reduce the number of active CPU cores on ODA system
####################################################################

--Find the ODA Serial Number
 [root@odanode1 ~]# /usr/sbin/dmidecode -t1 |grep Serial
 Serial Number: 1xxxxxXXXXxG

--Login to MOS and generate the CPU Key using the ODA Serial Number.

####################################################################
 ## ODA CPU Capping
 ####################################################################

------------------------------------
 -- Target  active CPU cores --
 ------------------------------------
   HOSTNAME    |   CPU COUNT  
 ---------------|----------------
 odanode1        |      6
 ---------------|----------------
 odanode2        |      6
 --------------------------------

-------------------------------------------------------------------------------
 --Reduce the CPU cores running the following command from the first node only!
 -------------------------------------------------------------------------------
 /opt/oracle/oak/bin/oakcli show core_config_key
 /opt/oracle/oak/bin/oakcli apply core_config_key /tmp/CPU_KEY

------------------------------------------
 --Activity Log
 ------------------------------------------
 [root@odanode1 tmp]# vi CPU_KEY  <--- Store the CPU key generated on MOS
 [root@odanode1 tmp]# /opt/oracle/oak/bin/oakcli show core_config_key
 Optional core_config_key is not applied on this machine yet !
 [root@odanode1 tmp]# pwd
 /tmp
 [root@odanode1 tmp]# /opt/oracle/oak/bin/oakcli apply core_config_key /tmp/CPU_KEY
 INFO: Both nodes get rebooted automatically after applying the license
 Do you want to continue: [Y/N]?:
 Y
 INFO: User has confirmed the reboot

Please enter the root password:

............done

INFO: Applying core_config_key on '192.168.16.25'
 ...
 INFO   : Running as root: /usr/bin/ssh -l root 192.168.16.25 /tmp/tmp_lic_exec.pl
 INFO   : Running as root: /usr/bin/ssh -l root 192.168.16.25 /opt/oracle/oak/bin/oakcli enforce core_config_key /tmp/.lic_file
 Waiting for the Node '192.168.16.25' to reboot...........................
 Node '192.168.16.25' is  rebooted
 Waiting for the Node '192.168.16.25' to be up before applying the license on the node '192.168.16.24'.
 .............................................
 INFO: Applying core_config_key on '192.168.16.24'
 ...
 INFO   : Running as root: /usr/bin/ssh -l root 192.168.16.24 /tmp/tmp_lic_exec.pl
 INFO   : Running as root: /usr/bin/ssh -l root 192.168.16.24 /opt/oracle/oak/bin/oakcli enforce core_config_key /tmp/.lic_file

Broadcast message from root (Fri Jun  7 15:18:34 2013):

The system is going down for reboot NOW!
 [root@odanode1 tmp]#

-------------------------------------------------------------
 --Check the new Number of active cores
 -------------------------------------------------------------

[root@odanode1 ~]# /opt/oracle/oak/bin/oakcli show core_config_key

Host's serialnumber                    =                     1xxxxxXXXXxG
 Enabled Cores (per server)             =                                   6
 Total Enabled Cores (on two servers)   =                             12
 Server type                            =        V1 -> SUN FIRE X4370 M2
 Hyperthreading is enabled.  Each core has 2 threads. Operating system displays 12 processors per server
 [root@odanode1 ~]#