ODA X5-2 how to cap the number of active CPU Cores

I recently had to cap the number of active CPUs on a bare metal ODA X5-2, and I noticed that the procedure is slightly different from what I used in the past (link to initial post).

 

Perform the following steps to generate the Core Key:

  • Login to My Oracle Support (MOS) and click the submenu Systems.
  • Select the serial number of the appliance and click on “Core Configuration”in the Asset Details Screen
  • Select Manage Key
  • From the Combo list select the number of cores to activate  and click Generate Key to generate the key.
  • Click Copy Key to Clipboard to copy the key to the clipboard.
  • Paste the key into an empty text file and save the file to a location on the Oracle Database Appliance.

 

ODA X5-2 initial number of CPU Cores

[root@odax5-2n0 ~]# cat /proc/cpuinfo | grep -i processor
processor : 0
processor : 1
processor : 2
processor : 3
...
...
..
.
processor : 70
processor : 71

[root@odax5-2n0 ~]# cat /proc/cpuinfo | grep -i processor |wc -l
72
[root@odax5-2n0 ~]#

 

Checks before enforcing the CPU restriction:

[root@odax5-2n0 ~]# oakcli show server

Power State : On
 Open Problems : 0
 Model : ODA X5-2
 Type : Rack Mount
 Part Number : xxxxxxxxxxx
 Serial Number : nnnnXXXXnnX <<<<<<<<<<<< This serial MUST match on BOTH of the ODA servers
 Primary OS : Not Available
 ILOM Address : 192.168.21.35
 ILOM MAC Address : xx:xx:xx:xx:xx:xx
 Description : Oracle Database Appliance X5-2 nnnnXXXXnnX
 Locator Light : Off
 Actual Power Consumption : 345 watts
 Ambient Temperature : 21.250 degree C
 Open Problems Report : System is healthy

[root@odax5-2n0 ~]#


[root@odax5-2n1 /]# oakcli show server

Power State : On
 Open Problems : 0
 Model : ODA X5-2
 Type : Rack Mount
 Part Number : xxxxxxxxxxx
 Serial Number : nnnnXXXXnnX <<<<<<<<<<<< This serial MUST match on BOTH of the ODA servers 
 Primary OS : Not Available
 ILOM Address : 192.168.21.36
 ILOM MAC Address : xx:xx:xx:xx:xx:xx
 Description : Oracle Database Appliance X5-2 nnnnXXXXnnX
 Locator Light : Off
 Actual Power Consumption : 342 watts
 Ambient Temperature : 21.750 degree C
 Open Problems Report : System is healthy

[root@odax5-2n1 /]#

[root@odax5-2n0 ~]# oakcli show env_hw
BM ODA X5-2
Public interface : COPPER
[root@odax5-2n0 ~]#


[root@odax5-2n1 /]# oakcli show env_hw
BM ODA X5-2
Public interface : COPPER
[root@odax5-2n1 /]#


[root@odax5-2n0 ~]# ipmitool -I open sunoem getval /X/system_identifier
Target Value: Oracle Database Appliance X5-2 nnnnXXXXnnX
[root@odax5-2n0 ~]# fwupdate list sp_bios
==================================================
SP + BIOS
==================================================
ID Product Name ILOM Version BIOS/OBP Version XML Support
---------------------------------------------------------------------------------------------------------------
sp_bios ORACLE SERVER X5-2 v3.2.4.52 r101649 30050100 N/A
[root@odax5-2n0 ~]#

[root@odax5-2n1 /]# ipmitool -I open sunoem getval /X/system_identifier
Target Value: Oracle Database Appliance X5-2 nnnnXXXXnnX
[root@odax5-2n1 /]# fwupdate list sp_bios
==================================================
SP + BIOS
==================================================
ID Product Name ILOM Version BIOS/OBP Version XML Support
---------------------------------------------------------------------------------------------------------------
sp_bios ORACLE SERVER X5-2 v3.2.4.52 r101649 30050100 N/A
[root@odax5-2n1 /]#

 

Apply the CPU Key form the first ODA node

[root@odax5-2n0 ~]# /opt/oracle/oak/bin/oakcli apply core_config_key /root/ODA_PROD_CPU_KEY_SerialNumber_NumberofCores_Configkey.txt
INFO: Both nodes will be rebooted automatically after applying the license
Do you want to continue: [Y/N]?:
Y
INFO: User has confirmed for reboot


Please enter the root password:

............Completed

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@odax5-2n0
 (unknown) at 11:03 ...

The system is going down for reboot NOW!
[root@odax5-2n0 ~]#

 

New CPU cores configuration

[root@odax5-2n0 ~]# /opt/oracle/oak/bin/oakcli show core_config_key

Host's serialnumber = nnnnXXXXnnX
Enabled Cores (per server) = 6
Total Enabled Cores (on two servers) = 12
Server type = X5-2 -> Oracle Server X5-2
Hyperthreading is enabled. Each core has 2 threads. Operating system displays 12 processors per server
[root@odax5-2n0 ~]#

[root@odax5-2n1 ~]# /opt/oracle/oak/bin/oakcli show core_config_key

Host's serialnumber = nnnnXXXXnnX
Enabled Cores (per server) = 6
Total Enabled Cores (on two servers) = 12
Server type = X5-2 -> Oracle Server X5-2
Hyperthreading is enabled. Each core has 2 threads. Operating system displays 12 processors per server
[root@odax5-2n1 ~]#
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ODA CPU Capping

####################################################################
# 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 ~]#