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Replacing the NVDIMM

To replace the NVDIMM, you must locate it in the controller module using the FRU map on top of the air duct or locate the Attention LED using the FRU Map on top of the controller.

Before you begin

  • The NVDIMM LED blinks while destaging contents when you halt the system. After the destage is complete, the LED turns off.

  • Although the contents of the NVDIMM is encrypted, it is a best practice to erase the contents of the NVDIMM before replacing it.

  • To do this halt the node using the halt command on the controller that is being serviced.

  • From the LOADER prompt type armclean to wipe the DIMM.

About this task

A video for this task is available at:

You can use the following steps to replace the NVDIMM.

  1. Open the air duct and then locate the NVDIMM in slot 11 on your controller module.
    Note
    The NVDIMM looks significantly different than system DIMMs.
  2. Eject the NVDIMM from its slot by slowly pushing apart the two NVDIMM ejector tabs on either side of the NVDIMM, and then slide the NVDIMM out of the socket and set it aside.
    Attention
    Carefully hold the NVDIMM by the edges to avoid pressure on the components on the NVDIMM circuit board.
  3. Remove the replacement NVDIMM from the antistatic shipping bag, hold the NVDIMM by the corners, and then align it to the slot.
    The notch among the pins on the NVDIMM should line up with the tab in the socket.
  4. Locate the slot where you are installing the NVDIMM.
  5. Insert the NVDIMM squarely into the slot.
    The NVDIMM fits tightly in the slot, but should go in easily. If not, realign the NVDIMM with the slot and reinsert it.
    Attention
    Visually inspect the NVDIMM to verify that it is evenly aligned and fully inserted into the slot.
  6. Push carefully, but firmly, on the top edge of the NVDIMM until the ejector tabs snap into place over the notches at the ends of the NVDIMM.
  7. Close the air duct.