Mapping IPMI DIMM errors to chassis event log DIMM errors - IBM System x3850 X5 (Type 7145, 7146)

Resolving The Problem

Source

RETAIN tip: H196721

Symptom

The physical location of Dual In-Line Memory Modules (DIMMs) may appear inconsistent as reported by events in the Intelligent Platform Management Interface (IPMI) System Event Log (SEL) and by events in the Integrated Management Module (IMM) Chassis Event Log (CEL).

For example, if a memory error occurs on:

Memory Card 7, Dual In-Line Memory Module (DIMM) 3,

The IPMI SEL will report this as "DIMM 7003," and the IMM CEL reports this same error as "DIMM 51."

Affected configurations

The system may be any of the following IBM servers:

• System x3850 X5, type 7145, any model
• System x3850 X5, type 7146, any model
• System x3950 X5, type 7145, any model

This tip is not software specific.

This tip is not option specific.

The following system firmware level(s) are affected:

• IMM Firmware

Solution

This behavior will be corrected in a future release of IMM firmware.

The target date for this release is scheduled for Second Quarter 2010.

The file is available by selecting the appropriate machine type on the 'Software and device drivers - IBM System x' web page, at the following URL:

• Software and device drivers - IBM System x

Workaround

Use this table to map errors reported in the IPMI SEL vs the IMM CEL vs Physical DIMM Location:

Additional information

The table above can be used to determine the DIMM number and Card number from the DIMM number reported in the CEL.

When the Fix is installed, the CEL will report the DIMM number and Card number separately. The table will no longer be required to map the suspect DIMM.