EMOC Reports Warning Message On "/SYS/MB/T_OUT_SLOT2" Component In Exalogic X5-2 Racks Due to Overheating

Asset ID:	1-72-2202453.1
Update Date:	2017-07-23
Keywords:

Solution Type Problem Resolution Sure

Solution 2202453.1 : EMOC Reports Warning Message On "/SYS/MB/T_OUT_SLOT2" Component In Exalogic X5-2 Racks Due to Overheating

Applies to:

Exalogic Elastic Cloud X5-2 Hardware - Version X5 to X5 [Release X5]
Linux x86-64
Oracle Virtual Server x86-64

Symptoms

In Exalogic X5-2 racks in Virtual configuration EMOC reports warning message due to overheating on PCIe slot1/2 (/SYS/MB/T_OUT_SLOT1/2) whilst a lower temperature ambient.

Following is screenshot which shows EMOC reporting high temperature issue.

Warning_in_EMOC

From ILOM Snapshot, we can see temperature value.

less fma/@persist@faultdiags@ereports.log

2016-10-26/13:36:07 ereport.chassis.sensor.temp.unc-glo@/SYS/MB/T_OUT_SLOT2
[unrecognized]
detector = /SYS/MB/T_OUT_SLOT2
hidden = false
reading = 59.75
threshold = 60

NOTE:

If actual temperature is around threshold 60, warning message will be thrown from EMOC. In case actual temperature is higher than threshold 65, systems may power off to protect themselves.

Changes

No Changes.

Cause

This issue is caused due to following Hardware ILOM bug 21884937

BUG 21884937 - X5-2 overheating with fault.chassis.temp.fail@/SYS/MB/T_OUT_SLOT2

Solution

Workaround :

To fix this issue enable following setting under /SP/policy in ILOM to improve PCI cooling.

-> set /SP/policy ENHANCED_PCIE_COOLING_MODE=enabled

Solution:

This issue is fixed in SW 1.7.0 (3.2.7.26.a-r112579) ILOM version which is included in in January PSU 2017 or higher.

Please upgrade to latest Exalogic PSU.

References

<BUG:21884937> - X5-2 OVERHEATING WITH FAULT.CHASSIS.TEMP.FAIL@/SYS/MB/T_OUT_SLOT2
<NOTE:1954153.1> - Oracle Server X5-2, X5-2L, X6-2, and X6-2L Current Product Issues Page
<NOTE:1512139.1> - Oracle Exalogic Elastic Cloud Known Issues - Virtualization Release
https://updates.oracle.com/Orion/Services/download?type=readme&aru=20678744
<NOTE:1314535.1> - Exalogic Patch Set Updates (PSU) Master Note

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