Removing and replacing a trusted platform module: 2145-SV1

You might need to replace the trusted platform module (TPM) in a SAN Volume Controller 2145-SV1 node

Before you begin

DANGER

Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords. (L003)

• Read the safety information in Preparing to remove and replace parts.
• Use the management GUI to see whether this node has dependent volumes or enter the following lsdependentvdisks command:

  lsdependentvdisks -node node_id

  It is best to check that each host has an active path to the volume through the node that will not be powered off.

CAUTION:

The system might not recover properly if all of the TPMs are changed at the same while there are no active nodes in the system. Only change the TPM in one node at a time and make sure that node status is active again before you attempt to change the TPM in another node.

1. Follow the procedure in MAP 5350: Powering off a node to verify that hosts will not lose access to data in volumes before you power off the node.
   Attention: To prevent loss of access to data, make sure that powering off this node will not cause volumes to go offline.

Removing the TPM

2. Disconnect each power supply unit in the node from its power outlet so that the node is powered off.
3. Confirm that all the LEDs on the rear of the enclosure are off.
4. Slide the node out on its slide rails to the fully extended position.
5. Remove the top back cover, as described in Removing the top covers: 2145-SV1.
6. Locate the TPM on the main board, as shown in Figure 1 .
   Figure 1. Locating the TPM on the main board of a 2145-SV1 node

   
7. Push out the locking clips on the side of the TPM to free it, as shown in Figure 2.
   Figure 2. Removing the TPM from the main board of a 2145-SV1 node

   
8. Lift the TPM up and out of the slot.

Replacing the TPM

9. Insert the new TPM.
10. Push the locking clips in on each side of the TPM socket.
11. Replace the top back cover, as described in Replacing the top covers: 2145-SV1.
12. Slide the node back into the rack, as described in Replacing a node in a rack: 2145-SV1.
13. Power the node back on by attaching the power cables and reconnecting each power supply unit back to power.