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Oracle® ZFS Storage Appliance Customer Service Manual

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Updated: March 2017
 
 

Replacing a 7x20 DIMM

Caution

Caution  -  This procedure requires that you handle components that are sensitive to static discharge, which can cause the component to fail. To avoid damage, wear an antistatic wrist strap and use an antistatic mat when handling components.

To identify a specific memory module that has faulted, you must open the storage controller and use the amber status LEDs on the motherboard. To identify a general memory fault, go to the Maintenance > Hardware screen of the BUI, and click on the right-arrow icon image:apply icon on the controller. Then click DIMMs to locate the faulted component, indicated by the warning icon image:light warn icon .

  1. Power off the storage controller as described in Powering Off the Controller.
  2. Disconnect the AC power cords from the rear panel of the storage controller.
    Caution

    Caution  -  Because 3.3 VDC standby power is always present in the system, you must unplug the power cords before accessing any cold-serviceable components.

  3. Extend the controller from the rack as described in Extending the Storage Controller from the Rack.
  4. 7120 or 7320: Components may differ slightly between the 7120 and 7320, however service procedures for each are identical. The illustration shows the 7320 controller. To remove the top cover:
    1. Unlatch the fan module door, pull the two release tabs back, rotate the fan door to the open position and hold it there.
    2. Press the top cover release button and slide the top cover to the rear about a half-inch (1.3 cm).
    3. Lift up and remove the top cover.
    4. Also remove the air baffle by pressing the air baffle connectors outward and lifting the air baffle up and out of the server.
      image:graphic showing how to remove a 7120 or 7320 controller top cover and air baffle
  5. 7420: To remove the top cover:
    1. Simultaneously lift both cover latches in an upward motion.
      image:graphic showing how to remove a 7420 controller top cover
    2. Lift up and remove the top cover.
  6. To locate the DIMM you want to service, press the Fault Remind Button on the storage controller.

    The following illustration shows the Fault remind button on the 7120 controller.


    image:graphic showing the 7120 or 7320 controller Fault remind button

    The following illustration shows the Fault remind button on the 7420 controller.


    image:graphic showing the 7420 controller Fault remind button
  7. 7420: Identify the memory riser that hosts the faulted DIMM by the Service Required status indicator. Lift the memory riser straight up to remove it from the motherboard, and place it on an antistatic mat.
    image:graphic showing how to remove a 7420 controller memory riser
  8. Rotate both DIMM slot ejectors outward as far as they will go and carefully lift the faulted DIMM straight up to remove it from the socket.
    image:graphic showing how to remove a 7420 controller DIMM
  9. Line up the replacement DIMM with the connector, aligning the notch with the key to ensure that the component is oriented correctly.
    image:graphic showing how to install a 7420 controller DIMM
  10. Push the DIMM into the connector until the ejector tabs lock the component in place.
  11. 7120 or 7320: Components may differ slightly between the 7120 and 7320, however service procedures for each are identical. The illustration shows the 7320. To replace the cover:
    1. Place the top cover on the chassis so that it hangs over the rear of the storage controller by about an inch (2.5 cm).
    2. Slide the top cover forward until it seats.
    3. Close the fan cover and engage the fan cover latches. The cover must be completely closed for the storage controller to power on.
      image:graphic showing how to close the 7120 or 7320 controller fan cover
  12. 7420: To replace the cover:
    1. Push the memory riser module into the associated CPU memory riser slot until the riser module locks in place.
      image:graphic showing how to replace a 7420 controller riser module
    2. Place the top cover on the chassis so that it is forward of the rear of the storage controller by about an inch (2.5 cm).
    3. Slide the top cover toward the rear of the chassis until it seats and press down on the cover with both hands until both latches engage.
      image:graphic showing how to close the 7420 controller top cover
  13. Push the release tabs on the side of each rail and slowly push the storage controller into the rack.
    image:graphic showing how to push the release tabs on the rails

    The following image shows the 7420 chassis.


    image:graphic showing how to install a 7x20 controller into the rack
  14. Reconnect all cables to their original ports, referring to the labels previously added as a guide. For cabling details, see the Oracle ZFS Storage Appliance Cabling Guide.
  15. Connect the power cords to the power supplies.
  16. Verify that standby power is on, indicated by the Power/OK status indicator flashing on the front panel about two minutes after the power cords are plugged in.
  17. Use a pen or other pointed object to press and release the recessed Power button on the storage controller front panel.

    The Power/OK status indicator next to the Power button lights and remains lit.

  18. Go to the Maintenance > Hardware screen of the BUI. Click the right-arrow icon image:apply icon for the controller and then click DIMM to verify that the online icon image:light on icon is green for the newly installed DIMM.
  19. If a fault does not self-clear, see Repairing Active Problems.
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