Integrated Lights Out Manager Shows No Memory Details

Asset ID:	1-72-2146784.1
Update Date:	2016-06-07
Keywords:

Solution Type Problem Resolution Sure

Solution 2146784.1 : Integrated Lights Out Manager Shows No Memory Details

Applies to:

Oracle Database Appliance X3-2 - Version All Versions to All Versions [Release All Releases]
Oracle Database Appliance X4-2 - Version All Versions to All Versions [Release All Releases]
Oracle Database Appliance X5-2 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Issue Summary :

In the ILOM it shows: Installed RAM Size: 0 GB and DIMMs: 0 / 16 (Installed / Maximum)

Sample Output:

From ILOM Serial Console

-> show /System/Memory/
.
/System/Memory
Targets:
DIMMs
.
Properties:
health = OK
health_details = -
installed_memory = 0 GB        <<<<<<<<
installed_dimms = 0            <<<<<<<<
max_dimms = 16                 <<<<<<<<

Even ILOM web page show same issue . Please see below image.

Review the information in attachement

Cause

When Host is on SP can't access DIMM info. The race condition is caused by hardware limitation.

This is explained in following unpublished bug

<Bug 20774728> - RESET SP TO FACTORY DEFAULT SOMETIMES WILL CAUSE MEMORY SHOW 0G

Solution

Workaround

1. Restart the ILOM:

-> reset /SP

If you still see same problem even after reset of ILOM , Please contact Oracle Support.

As per <Bug 20774728>, we may need to power off the host if reset SP doesn't help:

@ When Host is on SP can't access DIMM info. The race condition is caused by
@ hardware limitation.
@ I suggest the workaround is powering off host. The bug should be closed.

References

<BUG:20774728> - RESET SP TO FACTORY DEFAULT SOMETIMES WILL CAUSE MEMORY SHOW 0G.

Attachments

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