Replacing a Storwize V7000 Gen2+ node canister trusted platform module

Use this procedure to replace a faulty node canister trusted platform module (TPM) with a new one received from CRU / FRU stock.

About this task

Important: If the node is part of a system and is the last online node, do not proceed to change the TPM in the node. Doing so prevents the node from accessing encryption keys that are stored on the node canister boot drive. Instead, complete repairs to bring another node (ideally the partner node) online in the system. The node with the replacement TPM can then obtain required encryption keys from the online node.

Procedure

  1. Follow Procedure: Removing a node canister to disconnect and remove the node canister with the faulty TPM.
  2. Remove the lid of the canister, as described in Procedure: Removing and replacing the lid of a Storwize V7000 Gen2 node canister.
  3. Locate the TPM  1  as shown in Figure 1.
  4. Remove the faulty TPM by applying gentle, outwards pressure simultaneously to the retaining clips  2  at each end of the TPM slot until the TPM is levered out of the slot.
  5. Touch the replacement TPM packaging onto a metal area of the case, and then remove the replacement TPM from its package.
  6. Ensure that the retaining clips of the TPM slot are open.
  7. Gently place the replacement TPM in the slot, ensuring that the notch in the TPM connector edge aligns with the shape of the slot.
    Figure 1. Installing a Storwize V7000 2076-624 node canister or a Storwize V7000 2076-U7A node canister trusted platform module
    Installing a Storwize V7000 2076-624 node canister or a Storwize V7000 2076-U7A node canister trusted platform module
  8. Apply even, firm, downwards pressure on the TPM in its slot until the retaining clips move inwards and engage the edges of the TPM.
  9. Ensure that the retaining clips are fully engaged with the edges of the TPM. Gently pull the TPM upwards and ensure that it does not become dislodged.
  10. Replace the canister lid, as described in Procedure: Removing and replacing the lid of a Storwize V7000 Gen2 node canister.
  11. Reinstall the canister, as described in Replacing a Storwize V7000 Gen2 node canister.
  12. Reconnect the cables to the canister, ensuring the cables go into the same ports from which they were removed in step 1.
  13. When the canister is back online, check the event log for new events, particularly events that relate to TPM and encryption failures.