IBM PowerLinux information

Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T system backplane

Learn how to replace the system backplane that is part of a service action.

To complete this procedure, you must have already completed the removal procedure. For the removal procedure instructions, see Removing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T system backplane.

If your system is managed by the Hardware Management Console (HMC), use the HMC to replace the system backplane. For instructions, see Replacing a part by using the Hardware Management Console.

If your system is managed by the IBM® Systems Director Management Console (SDMC), use the SDMC to replace the system backplane. For instructions, see Replacing a part by using the Systems Director Management Console.

If you do not have an HMC or an SDMC, complete the following steps to replace the system backplane:

Attention:
  • Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic discharge from damaging your hardware.
  • When using a wrist strap, follow all electrical safety procedures. A wrist strap is for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
  • If you do not have a wrist strap, prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds.
  1. Replace the system backplane.
    Note: Use care when you replace the system backplane.
    1. Carefully grasp the replacement system backplane by both of the heat sink load arms (A). See Figure 1.
    2. Lower the system backplane at an angle, biased toward the front of the system chassis.
    3. Lower the rear of the system backplane (1), and then slide it toward the rear of the system until the connectors clear the openings in the chassis.
    4. Lower the front of the system backplane (2) onto the alignment pins (B).
      Figure 1. Replacing the system backplane
      Replacing the system backplane
    5. Tighten the screws (C) that secure the system backplane to the system chassis. See Figure 2.
      Figure 2. Replacing the system backplane)
      Replacing the system backplane
  2. Replace the system processor modules. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T system processor modules.
  3. Replace the middle fan cage. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T middle fan cage.
  4. Replace the metal guide bracket for the second voltage regulator module:
    1. Align the bracket to the pins in the chassis
    2. Replace the two screws to secure the bracket to the chassis.
  5. Replace the second voltage regulator module, if present. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T voltage regulator module.
  6. Replace the power interlock switch. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T power interlock switch with the power off.
  7. Replace the storage interposer card. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T storage interposer card with the power off.
  8. Replace the vital product data card. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T vital product data card.
  9. Replace the system unit fans. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T system unit fans.
  10. Connect the fan cable by pressing the fan cable (A) into the fan cable connector. See Figure 3.
    Figure 3. Connecting the fan cable
    Connecting the fan cable
  11. Replace the dual inline memory module (DIMM) cage:
    1. Lower the DIMM cage into position ensuring that the DIMM cage alignment mark (A) and the alignment guide (B) are aligned. See Figure 4.
    2. Insert and tighten the six screws (C) that secure the DIMM cage.
    Figure 4. Replacing the DIMM cage
    Replacing the DIMM cage
  12. Replace the voltage regulator guide and air divider:
    1. Lower the voltage regulator guide (A) into place and tighten the three screws (B) that secure it in place. See Figure 5.
    2. Lower the air divider (C) into place.
    Figure 5. Replacing the voltage regulator guide air divider
    Replacing the voltage regulator guide air divider
  13. Replace the disk drive cage:
    1. With the disk drive latches extended, push the disk drive cage into the system. See Figure 6.
    2. Push the disk drive latches toward the system until they lock.
    Figure 6. Replacing the disk drive cage
    Replacing the disk drive cage
  14. Connect the internal cables to backplane:
    1. Connect the media device cables. Connect the media device cables, if present, by firmly pressing the cable connectors into the cable receptacles (A). See Figure 7.
      Figure 7. Connecting the media device cables
      Connecting the media device cables
    2. Connect the SAS cable:
      1. Connect the mini-SAS connector of the SAS cable to the internal SAS connection port (C) on the storage interposer until it snaps in place. See Figure 8.
      2. Route the cable (A) in front of the memory riser cage, and along the channel in the side wall until the SAS port connector is near the opening on the rear of the chassis.
      3. Align and guide the slot in the bracket of the SAS port connector (B) over the guide pin in the chassis, then slide the SAS port connector into the opening on the rear of the chassis until the tab on the bracket snaps in place.
        Figure 8. Replacing the SAS cable
        Replacing SAS cable connections
    3. Connect the operator panel cable by firmly pressing the cable connectors into the cable receptacles (A). See Figure 9.
      Figure 9. Connecting the operator panel cable
      Connecting the operator panel cable
  15. Replace the power supplies. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T power supply with the power turned off or Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T power supply with the power turned on.
  16. Replace the memory modules. For instructions, see Replacing memory modules in the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T.
  17. Replace the voltage regulator module. For instructions, see Replacing the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T voltage regulator module.
  18. Replace the GX adapters. For instructions, see Replacing GX adapters for the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T.
  19. Replace the PCI adapters. For instructions, see Replacing a PCI adapter in the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T with the power off.
  20. Replace the service access cover. For instructions, see Installing the service access cover on the 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T.
  21. Place the system in the operating position. For instructions, see Placing the rack-mounted 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T into the operating position.
  22. Reconnect all power cords and signal cables.
  23. Restore network connectivity.

    The service processor must connect to the network to be accessible from the management console.

    How will the IP address of the service processor be managed?
    • If the IP address will be automatically obtained from a Dynamic Host Configuration Protocol (DHCP) server, go to the next step.
    • If the IP address will be manually configured as a static IP address, go to step 25.
  24. Restore service processor settings.
    Enable network access to the service processor. If the network connection uses the DHCP to establish an IP address, and uses the Management consoles as the DHCP server, no additional configuration is necessary to enable network access to the service processor. Perform the following steps:
    1. Ensure that the service processor is connected to the existing service network by verifying that the management console cable is connected to the management console port on the system backplane.
    2. If not already connected, connect all system power cables by plugging them into power outlets.
      Note: Do not start the system at this time.
    Can you access the service network?
    • Yes: Go to step 27.
    • No: Go to step 30.
  25. Restore service processor settings.
    The Advanced System Management Interface (ASMI) is the interface to the service processor that is required to perform general and administrator-level service tasks, such as reading service processor error logs, reading vital product data, setting up the service processor, controlling the system power, and setting service processor network ports. The ASMI may also be referred to as the service processor menus. The ASMI can be accessed through https. Perform the following steps:
    1. The control panel can be used in manual mode to display the service processor's IP addresses. Refer to service functions to get control panel documentation in that case.
    2. Connect a client with a web browser directly to the service processor network ports you previously noted. It could be something like the following URLs:
      • https://169.254.2.147
      • https://169.254.3.147
      Note: In some cases, the IP addresses might be different. For more information, see Function 30.
    3. If not already connected, connect all system power cables by plugging them into power outlets. Note: Do not start the system at this time.
    4. Log on to the ASMI with the admin User ID and admin default Password.
    5. Change the admin user ID Password and the general user ID Password when prompted.
    6. To configure network access perform the following steps:
      1. Click Network Configuration under the Network Services node.
      2. On the right pane, configure eth0 and eth1 network interfaces, select Static for the Type of IP Address field, and set and a Host name, an IP address, a Subnet mask.
  26. Restore system processor settings.

    With the network connection now configured to use static IP address assignments, try to access the service processor network ports.

    Can you access the service network?
    • Yes: Go to the next step.
    • No: Go to step 31.
  27. Access the ASMI.

    The ASMI is the interface to the service processor that is required to perform general and administrator-level service tasks, such as reading service processor error logs, reading vital product data, setting up the service processor, and controlling the system power. The ASMI might also be referred to as the service processor menus. To access the ASMI, see Accessing the Advanced System Management Interface. After you have accessed the ASMI, continue with the next step.

  28. Set System Enclosure Type and Feature Code.

    The enclosure serial number is a seven-digit number printed on a bar-coded label on the system unit. When the system backplane is replaced, the seven-digit enclosure serial number and feature code number needs to be manually inputted and stored in the new system backplane by using the ASMI.

    Note: The feature code number for 8246-L1C, 8246-L1D, 8246-L1S, 8246-L1T, 8246-L2C, 8246-L2D, 8246-L2S, or 8246-L2T system backplane is 78AB-001.
    Note: To perform this operation, your authority level must be Authorized Service Provider (ID: celogin).
    To input the enclosure serial number and feature code, complete the following steps:
    1. On the ASMI Welcome pane, specify your user ID and password, and click Log in.
    2. In the navigation area, expand System Configuration > Program Vital Product Data.
    3. Select System Enclosures. In the right pane, the current system enclosures are displayed.
    4. On the system being serviced, record the enclosure serial number and feature code printed on the bar-coded label on the system unit.
    5. Enter the last 7 characters of the enclosure serial number in the Enclosure serial number field.
    6. Enter the feature code number, including the dash (-), in the Feature Code/Sequence Number field.
    7. Click Save settings to update and save the enclosure serial number and the feature code.
  29. Go to step 33
  30. Restore service processor settings.
    If the network connection uses DHCP to establish an IP address, but does not use a management console as the DHCP server, complete the following steps:
    1. Complete any network configuration necessary to allow the DHCP server to recognize and assign an IP address to the service processor.
    2. Ensure that the service processor is connected to the existing service network by verifying that the network cable is connected to the network port.
    3. If not already connected, connect all system power cables by plugging them into power outlets.
      Note: Do not start the system at this time.
    Can you access the service network?
    • Yes: Go to step 27.
    • No: Go to the next step.
  31. Restore service processor settings.
    If you are still not able to access the service network, reset the service processor by pressing the pin-hole switch (E) on the operator panel. See Figure 10.
    Figure 10. Pin-hole switch on the operator information panel
    Pin-hole switch on the operator information panel
  32. Go to step 23.
  33. Restore service processor settings.
    Change the password of the admin user ID when prompted by performing the following steps:
    1. In the navigation area of the ASMI, expand Login Profile.
    2. Select Change Password under Login Profile.
    3. Specify the required information, and click Continue.
    As a security measure, you are required to enter your current user password in the Current password for current user ID field.
    Note: Passwords can be any combination of up to 64 alphanumeric characters. The default password for the admin User ID is admin. After your initial login to the ASMI, the admin password must be changed.
    As a security measure, you are required to enter the password for your user ID in the Current password for current user field.
  34. Restore service processor settings.
    Set the system name. The system name can be changed to any valid ASCII string. It does not have to follow the machine type_model_serial number format. To change the system name, complete the following steps:
    1. In the navigation area of the ASMI, expand System Configuration.
    2. Select System Name under System Configuration.
    3. Enter the desired system name.
    4. Click Save settings to update the system name to the new value.
    The new system name is displayed in the status frame, the area where the Log out button is located. If another method, such as the a management console, is used to change the system name, the status frame does not reflect the change.
  35. Restore service processor settings.
    To set the time-of-day, complete the following steps:
    1. In the navigation area of the ASMI, expand System Configuration.
    2. Select Time of Day under System Configuration.
    3. If the system is powered off, the right pane displays a form that shows the current date (month, day, and year) and time (hours, minutes, and seconds).
    4. Change the date, the time, or both, and click Save settings.
  36. Restore service processor settings.

    Verify if the server firmware level is same as the value recorded prior to replacing the system backplane. If the value is different then it must be fixed. For information on how to fix the firmware, see Getting firmware fixes.

  37. Restore service processor settings.
    Reenter any of the following settings that were previously changed through the ASMI, unless you want to use the default settings.
    • System name setting
    • System Power Control settings
    • System Service Aids settings
    • System Configuration settings
    • Network Services settings
    • Performance Options settings
    • Login Profile settings
    • Boot List settings
  38. Restore service processor settings.
    1. Reset any service processor settings that you may have set using operating system commands. You recorded these settings at the beginning of this procedure.
    2. If you choose to reset the Management consoles Access password, perform the following:
      To change the HMC access password, select one of the following methods:
      1. From the HMC GUI (preferred method):
        1. Expand the Systems Management folder in the navigation tree pane.
        2. Double-click the Servers folder.
        3. Select a server in the central panel.
        4. Under the Operations folder, select Change Password.
        5. Provide the desired information and click OK.
      2. From the HMC command line, type:

        /usr/hmcrbin/chsyspwd -m managedsystem -t access --passwd --newpasswd newpassword

        where:
        • The value for managedsystem is the new service processor's managed system name.
        • No value for --passwd is entered thereby allowing authentication.
        • The value for newpasswd is the newpassword value.
      To change the SDMC access password, complete the following steps:
      1. Click the Resources tab, and then click Hosts.
      2. Select a server in the right pane.
      3. From the Actions menu, click Operations > Change Password.
      4. Provide the desired information and click OK.
  39. Recover partition data on the service processor.

    Profile data stored in the managed server has been cleared or corrupted.

    To recover profile data, using the HMC, complete the following steps:
    1. Expand the Systems Management folder in the navigation tree pane.
    2. Double-click the Servers folder.
    3. Use the check box to select a server, in the central panel.
    4. In the Configuration folder if you have the Manage Partition Data folder, select Restore.
    To recover profile data, using the SDMC, complete the following steps:
    1. Click the Resources tab, and then click Hosts.
    2. Select a server in the right pane.
    3. From the Actions menu, click System Configuration > Manage Partition Data > Restore.
    4. Select the desired restore option and click OK.
  40. Update vital product data.
  41. Restore the boot list settings.

    The boot list is not present on a new system backplane; therefore, it is necessary to create the boot devices by booting into the system management services (SMS) menus. See Selecting boot options for information on setting the boot device list.

    After the operating system is booted, the bootlist command can be used to verify, or make additional changes to, the list of boot devices for a system or partition.

  42. Start the system or logical partition. See Starting the system or logical partition.
  43. Verify the repair. For more information, see Verifying a repair.


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Last updated: Tue, December 13, 2016