CMM MFG p/n 46W0941 fails to start during AC power up - IBM Flex



Source

RETAIN tip: H21494

Symptom

AC (cold start) power on of the IBM Flex Systems Chassis Management Module (CMM) manufacturing part number (p/n) 46W0941 fails to boot with the following behavior:

When a chassis is configured with one (1) CMM, all three (3) Light Emitting Diodes (LEDs) (GREEN/GREEN/AMBER) illuminate on initial power up.

When a chassis is configured with two (2) CMMs, the CMMs will continuously fail over from the Primary CMM to the Standby CMM. When no CMM is active, no power permissions are granted to the Information Technology Elements (ITEs).

Affected configurations

The system may be any of the following IBM servers:

  • Flex System Enterprise Chassis, type 7893, any model
  • Flex System Enterprise Chassis, type 8721, any model
  • Flex System Enterprise Chassis, type 8724, any model

The system is configured with one or more of the following IBM Option part number:

  • Flex System Chassis Management Module, Option part number 68Y7029, any replacement part number

This tip is not software specific.

The system has the symptom described above.

Solution

Check the Details/Additional information to determine if an affected CMM is installed.

If an affected CMM is installed, follow these steps:

  1. Download and save the following file: cmefs_gpio_1.uxp
    This is located at the following URL:

     

    ftp://ftp.software.ibm.com/systems/support/system_x/cmefs_gpio_1.uxp


  2. Remove all CMMs from the chassis.
  3. Insert the first CMM into CMM bay 1 of the chassis.
  4. Plug the Ethernet Cable into the network.
  5. Verify connectivity by pinging the CMM.
  6. Login to the CMM web Graphical User Interface (Web GUI) as an administrator.

      Note: Do not reset the CMM at this point.
  7. Flash 'cmefs_gpio_1.uxp' to the CMM.

      a) Navigate to Management Module Mgmt -> Firmware.
    b) Select Bay 1 and click Update.
    c) Select Local and click next.
    d) Browse for file named 'cmefs_gpio_1.uxp'.
    e) Select "Automatically Restart Management Module."
  8. After the CMM restarts, all three (3) LEDs (GREEN/GREEN/AMBER) are illuminated on the CMM LED panel. This is normal during this process. Firmware level will be at 2PET665 after successful flash.

      Note: This flash and restart process will take longer than a typical CMM firmware flash and restart.
  9. After the network reconnects, flash the same CMM to the customer's desired CMM firmware level.

      a) Navigate to Management Module Mgmt -> Firmware.
    b) Select Bay 1 and click Update.
    c) Select Local and click next.
    d) Browse for the appropriate file.
    e) Select "Automatically Restart Management Module."
  10. CMM will restart automatically.
  11. After CMM restarts, the two (2) green LEDs will be illuminated on the CMM LED panel. This indicates the process is complete.
  12. If you have more than one (1) CMM, remove the CMM that was just updated from bay 1 and insert the other CMM into bay 1. Follow the same process to update each CMM one at a time before inserting both CMMs into the chassis.

This process could requires at least 60 minutes per CMM.

Workaround

If two (2) CMMs are installed, remove one (1) of the CMMs.

Note: A warm restart of the CMM may be required to fully recover a system with one (1) CMM installed.

Additional Information


There are two (2) ways to determine if the CMM hardware is affected.

  1. CMMs meet the following three (3) criteria:

    - Field Replaceable Unit (replacement part number): 46W0955
    - Part Number (p/n): 46W0941
    - Hardware Revision (Rev) level: 8
    *Note: Hardware Revision (Rev) level: 7 shares the same replacement part number as Hardware Revision (Rev) level: 8, but HW Rev 7 has a different Part Number than HW Rev 8 CMMs.
    Be sure to check the Part Number and Hardware Revision to determine that the CMM is affected.

  2. CMMs with the following 11S Serial Number (SN) information:

      11S46W0941Y010BGxxxxxx

    (where xxxxxx = any combination of characters.)
The 11S number can be found on the box of the CMM or on the CMM itself. The p/n can be found in seven (7) alphanumeric characters following "11S."


To check the p/n number of a CMM installed in a chassis, check if the Vital Product Data (VPD) contains the affected p/n:

  1. Log in to CMM Secure Shell (SSH).
  2. Wait for 'system>' prompt.
  3. Enter the following command:

      env -T mm[x]
    (where x = the chassis bay where the CMM is installed)

  4. Wait for the 'system:mm[x]' prompt.
  5. Enter the 'info' command.
  6. An affected CMM will have these values:
    Hardware rev: 8.0
    Part no.: 46W0941
    replacement part number no.: 46W0955
    The CMM must meet all three (3) criteria.

To check via the CMM web GUI:

  1. Log in to the CMM
  2. Select the CMM
  3. Select the "Hardware" tab
  4. An affected CMM will have these values:
    Hardware rev: 8.0
    Part no.: 46W0941
    replacement part number no.: 46W0955

If there are two (2) CMMs in the chassis, users will not be able to perform the fix utility. There can only one (1) CMM in the chassis to perform this update. The fix utility must be performed on each CMM individually (one at a time) using the process described above.

To perform the process via CMM Command Line Interface (CLI), use the update command and the appropriate file server. For additional information on using the update command, refer to the CMM CLI Guide included with each CMM firmware update package.

Applicable countries and regions

 


Document id:  MIGR-5093285
Last modified:  2013-08-27
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