Exchange the CEC enclosure disk drive backplane

Before you begin

CAUTION:
This assembly contains mechanical moving parts. Use care when you service this assembly. (C025)

Icon for electrostatic discharge wrist strapUse approved ESD procedures to prevent damage.

Attention:
  • This procedure is not a stand-alone procedure. Customer disruption and damage to the hardware might occur when microcode and power boundaries are not in the proper conditions for this service action.
  • If a serviceable event FRU repair directed you to this procedure, the microcode and power boundaries are already set.
  • If a serviceable event FRU repair did not direct you to this procedure, see MAP1230 Replace a FRU without using a serviceable event.
Notes:
  • All the cables and FRUs to be removed must be uniquely identified so they can be reinstalled correctly.
  • If an installed earthquake resistance kit prevents you from accessing this FRU, refer to MAP1600.

Preparing the CEC enclosure to remove and replace the disk drive backplane

Procedure

  1. Use a replacement part with a valid DS8000® part number to ensure it has the proper firmware, VPD, or configuration to ensure it is compatible with the DS8000 service procedures. Attempting to use a generic server FRU might fail and require next level of support to recover.
  2. All parts being removed must be marked or identified so they can be installed into their original locations.
    Note: Failure to do this can extend the service duration and may require next level of support assistance.
  3. The management console keyboard can be moved between the operating and stowed position as needed to allow service clearance above the CEC enclosure.
  4. Use the front and rear blue identify LEDs to determine the CEC enclosure to be repaired. Both blue LEDs should be lit.
    • CEC control panel blue identify LED Callout label B as shown in Figure 1.
    • CEC enclosure rear blue identify LED Callout label 1 as shown in Figure 2.
    Note: If both the front and rear CEC enclosure identify LEDs are not lit, use the location code listed in the serviceable event FRU list. See MAP1245 Finding FRUs by using location codes.
    Figure 1. Control panel LEDs
    Control panel LEDs
    Figure 2. CEC enclosure rear LEDs
    Service indicator LEDs
  5. Verify that the CEC enclosure is in the power-off state. See Figure 3
    1. At the rear of the CEC enclosure, view all CEC enclosure power supply DC LEDs.
    2. Are all DC (output) LEDs flashing?
    Figure 3. Location of the power supplies and LEDs (Model 982)
    Location of the power supplies and LEDs (Model 982)
  6. Attach the electrostatic discharge (ESD) wrist strap.
    Attention:
    • Attach an electrostatic discharge (ESD) wrist strap to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.
    • When using an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used 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 an ESD wrist strap, just before 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.
  7. Disconnect the power cords Callout label B from the CEC with the DC (output) LEDs flashing. See Figure 4.
    Notes:
    • Ensure the power cords are correctly labeled.
    • The power supply LEDs might continue to flash for up to 20 seconds while internal power is discharged.
    • The power cord is fastened to the system using the hook-and-loop fastener Callout label A. Unstrap the fastener to allow the enclosure to be placed in the service position.
    Figure 4. Removing the power cords (Models 982, 988)
    Removing the power cords (Model 982)
  8. Observe the CEC enclosure control panel green power button LED Callout label A. See Figure 5.
    • If it is off, go to the next step.
    • If it is flashing, the CEC enclosure is still in the power-off state. DO NOT CONTINUE. Ensure that you have unplugged the power cables.
    Figure 5. Control panel LEDs
    Control panel LEDs
  9. Remove the front cover.
    CAUTION:
    A hot surface nearby.
    1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
    2. Place your fingers on the indentations and pull the latches Callout label B located on both sides of the cover.
    3. Pull the cover Callout label A away from the system.
    Figure 6. Removing the front cover
    Removing the front cover

Removing the CEC enclosure disk drive backplane

About this task

To remove the CEC enclosure disk drive backplane, complete the following steps:

Attention: When the disk drive backplane is separated from the RAID assembly, electronic components on the disk drive backplane are exposed to possible damage due to handling. Be careful when you handle the disk drive backplane to prevent damage to exposed electronic components on the disk drive backplane.

Procedure

  1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
  2. Loosen, but do not remove the recessed shipping screws Callout label A in the RAID assembly by using a 4 mm Allen wrench, as shown in Figure 7.
    Figure 7. Loosening the shipping screws
    Loosening the shipping screws
  3. Remove the control panel.
    1. Press the terracotta tab and then slide the control panel straight out of the slot. See Figure 8.
    2. Place the control panel on the ESD mat.
    Figure 8. Removing a control panel
    Removing a control panel
  4. Remove the DVD drive filler. See Figure 9.
    Note: DVD is shown for location.
    Figure 9. Removing the DVD drive
    Removing the DVD drive
  5. Label and remove the disk drives and fillers.
    1. Unlock the drive handle Callout label B by pressing the handle latch Callout label A and pulling it toward you, as shown in Figure 10. If the handle is not all the way out, the disk drive cannot slide out of the system.
    2. Support the bottom of the drive as you slide it out of the system. Do not hold the drive by the handle.
    3. Place the drive on the ESD mat.
    4. Repeat step 5 for the remaining disk drives and fillers.
    Figure 10. Removing the disk drive
    Removing the disk drive
  6. Label and remove the solid-state drives (if present) and fillers.
    1. Unlock the drive handle Callout label B by pushing the handle latch Callout label A in the direction that is shown and pulling the drive handle Callout label B out toward you, as shown in Figure 11. If the handle is not all the way out, the solid-state drive cannot slide out of the system.
    2. Support the bottom of the drive as you slide it out of the system. Do not hold the drive by the handle.
    3. Lock the drive handle Callout label B by rotating it inwards toward the system.
    4. Place the solid-state drive on the ESD mat.
    5. Repeat step 6 for the remaining solid-state drives and fillers.
    Figure 11. Removing the solid-state drive
    Removing the solid-state drive
  7. Turn the thumbscrews in the direction shown. Pull out the latches and remove the RAID assembly from the system, as shown in Figure 12.
    Figure 12. Removing the RAID assembly from the system
    Removing the RAID assembly from the system
  8. Turn the RAID assembly upside down and place the assembly on a flat surface, as shown in Figure 13.
    Figure 13. Turning the RAID assembly upside down
    Turning the RAID assembly upside down
  9. Press down on the RAID assembly cover latches Callout label A, then slide the cover Callout label B in the direction that is shown and lift to remove it, as shown in Figure 14.
    Figure 14. Removing the RAID assembly cover
    Removing the RAID assembly cover
  10. Remove four screws from each side of the RAID assembly by using a T10 Torx screwdriver. See Figure 15.
    Figure 15. Removing screws from the RAID assembly
    Removing screws from the RAID assembly
  11. Grasp the disk drive backplane Callout label B with both hands and pull it toward you until pins Callout label A on the bottom side of the disk drive backplane, clear the RAID assembly slot. Then, lift the disk drive backplane to remove it, as shown in Figure 16.
    Figure 16. Removing the disk drive backplane
    Removing the disk drive backplane

Replacing the CEC enclosure disk drive backplane

About this task

To replace the CEC enclosure disk drive backplane, complete the following steps:

Attention: When the disk drive backplane is separated from the RAID assembly, electronic components on the disk drive backplane are exposed to possible damage due to handling. Be careful when you handle the disk drive backplane to prevent damage to exposed electronic components on the disk drive backplane.

Procedure

  1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
  2. Slide the disk drive backplane Callout label B into position on the RAID assembly. Ensure the pins Callout label A on the bottom side of the disk drive backplane are inserted into the slots on the RAID assembly. See Figure 17.
    Figure 17. Replacing the disk drive backplane
    Replacing the disk drive backplane
  3. Replace four screws on each side of the RAID assembly by using a T10 Torx screwdriver. See Figure 18.
    Figure 18. Replacing the screws
    Replacing the screws
  4. Slide the RAID assembly cover Callout label A in the direction that is shown until the latches Callout label B lock in position, as shown in Figure 19.
    Figure 19. Replacing the RAID assembly cover
    Replacing the RAID assembly cover
  5. Turn the RAID assembly over, as shown in Figure 20.
    Figure 20. Turning the RAID assembly over
    Turning the RAID assembly over
  6. Slide the RAID assembly into the system. Push latches in and tighten thumbscrews, as shown in Figure 21.
    Figure 21. Replacing the RAID assembly
    Replacing the RAID assembly
  7. Replace the disk drives and fillers into their original positions.
    1. Unlock the drive bay handle Callout label A by pressing it and pulling it out toward you. If the handle is not all the way out, the drive does not slide into the system.
    2. Hold the drive by the top and bottom edges as you position the drive, and insert it into the drive slot. Do not hold the drive by the handle.
    3. Slide the drive all the way into the system, and push the drive bay handle Callout label A in until it locks, as shown in Figure 22.
      Important: Ensure that the drive is fully seated and is all the way into the system.
    4. Repeat step 7 for the remaining disk drives and fillers.
    Figure 22. Replacing a disk drive
    Replacing a disk drive
  8. Replace the solid-state drives (SSD) (if removed) and fillers into their original positions.
    1. With the solid-state drive handle Callout label A in the unlocked position, pull the lever outward to gain access to the guide rails in the SSD slot. Support the bottom of the SSD as you align it with the guide rails in the SSD slot.
      Note: Do not hold the drive only by the handle. Support the drive by holding the drive by its sides.
    2. Slide the SSD into the system until the drive stops, and then lock the SSD by rotating the handle Callout label A in the direction shown.
      Important: When you install an SSD, ensure that the SSD is fully seated and is all the way into the system.
    3. Lock the drive by rotating the handle Callout label A in the direction that is shown in Figure 23.
    4. Repeat step 8 for the remaining solid-state drives and fillers.
    Figure 23. Replacing the solid-state drive
    Replacing the solid-state drive
  9. Replace the DVD drive filler. See Figure 24.
    Note: DVD is shown for location.
    Figure 24. Replacing the DVD drive
    Replacing the DVD drive
  10. Replace the control panel.
    1. Align the control panel with the control panel slot.
    2. Slide the control panel into the slot, and press on the terracotta tab to lock it in place. See Figure 25.
    Figure 25. Replacing the control panel
    Replacing the control panel

Preparing the CEC enclosure for operation after removing and replacing the disk drive backplane

About this task

To prepare the system for operation, complete the following steps:

Procedure

  1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
  2. Replace the front cover.
    1. Ensure that you have the electrostatic discharge (ESD) wrist strap attached. If not, attach it now.
    2. Position the cover Callout label A on the front of the system unit so that the four pins Callout label B on the system match the four holes at the rear of the cover.
    3. Press the tabs Callout label C to snap the cover into position.
    Figure 26. Installing the front cover
    Installing the front cover
  3. Attach the electrostatic discharge (ESD) wrist strap.
  4. Reconnect the power cords Callout label A to the CEC enclosure. See Figure 27.
  5. Fasten the power cords to the enclosure using the hook-and-loop fasteners Callout label B.
    Figure 27. Connecting the power cords
    Connecting the power cords
  6. Verify that the CEC enclosure has power available. See Figure 28.
    1. At the rear of the CEC enclosure, view the CEC enclosure power supply DC LEDs.
    2. Are all DC (output) LEDs flashing?
      • Yes, continue with the next step.
      • No, ensure the power cords are properly connected. If no connection problem is found, contact your next level of support.
    Figure 28. Location of the power supplies and LEDs (Model 982, 988)
    Location of the power supplies and LEDs (Model 982)
  7. Wait up to 5 minutes for the CEC enclosure control panel power-button LED Callout label A to flash. See Figure 29.
    Note: This ensures the CEC enclosure is in the power-off state.

    Is the power-button LED flashing?

    • Yes, go to the next step.
    • No, ensure the CEC enclosure power supplies are fully seated. The possible failing FRUs are the CEC enclosure system backplane, I2C interface card and cables, and control panel. You can also call the next level of support.
    Figure 29. Control panel LEDs
    Control panel LEDs
  8. Close the rear door of the rack.
  9. Exit this service information center parts exchange procedure and return to the procedure that sent you here.