Exadata X3-2 Hardware
 
Exadata X3-2 Quarter Rack
 
Exadata X3-2 Half Rack
 
Exadata X3-2 Full Rack
 
Exadata X3-2 Eighth Rack
 

PLA-Support>Eng Systems>Exadata/ODA/SSC>Oracle Exadata>DB: Exadata_EST
 

Applies to:

Goal

In the following section

4.5 Verify Configuration for Oracle ILOM Server

of the EM configuration guide for Exadata:

http://docs.oracle.com/cd/E24628_01/doc.121/e27442/ch4_post_discovery.htm#CBAEHCED

There is a step that only works on Exadata X2 systems, and needs updated for X3.

While setting snmp trap to verify function of alerts on compute nodes, according to post discovery steps:

# ipmitool -I lan -H db01-c -U oemuser -P welcome1 -L OPERATOR event PS0/VINOK deassert

Finding sensor PS0/VINOK... not found!

This fails as it cannot find VINOK, which is not a valid Power Supply sensor on X3. only found below targets. 

-> cd PS0
/SYS/PS0

-> ls

 /SYS/PS0
  Targets:
  P_IN
  P_OUT
  V_IN
  V_12V
  V_12V_STBY
  T_OUT
  STATE
  PRSNT

Following error is reported:

For X3-2 database machines, If EM's ILOM plugin does not detect a power supply problem even if the power cord was pulled out of the Database machine, then you could be hitting this issue. 

Solution

Its a known issue and there is a bug filed for this

Bug 15952219 : ILOM PLUG-IN DOESN'T DETECT POWER SUPPLY PROBLEM ON X3-2

The Getting Started guide for X3-2 will be updated.

WORK AROUND / ACTION PLAN
=========================

The X3-2 sever has different sensors in the ILOM compared to the X2-2.  The PS0/VINOK is not present in the X3-2 ILOM. Therefore, the ipmitool failed to work for this particular sensor ID.

For the meantime, try the PS0/STATE sensor in X3-2 instead. To raise an alert manually from the ILOM Server being validated, run the following command as root on the first database server in the cluster:

Example:

======

# ipmitool -I lanplus -H db01-c.us.oracle.com -U root -P welcome1 -L OPERATOR event  PS0/STATE "Power Supply AC lost" "Asserted"
Finding sensor PS0/STATE... ok
0 | Pre-Init Time-stamp   | Power Supply #0x64 | Power Supply AC lost | Asserted
 

After running the above command, wait a few minutes then refresh the ILOM
target page.  An incident should appear in the Incidents section.  The event can then be cleared in the normal way.

To change the status back to Normal, run the following command:

# ipmitool -I lanplus -H db01-c.us.oracle.com -U root -P welcome1 -L OPERATOR event  PS0/STATE "Power Supply AC lost" "Deasserted"
Finding sensor PS0/STATE... ok
0 | Pre-Init Time-stamp   | Power Supply #0x64 | Power Supply AC lost | Deasserted

This solution has no attachment