Removing and replacing an Ethernet SFP transceiver

When a failure occurs on a single 10 gigabits per second (Gbps) Ethernet link, the small form-factor pluggable (SFP) transceiver might need to be replaced. The following procedure is applicable to SAN Volume Controller 2145-SV1, 2145-DH8, 2145-CG8 or 2145-CF8 nodes.

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)

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The following procedure is applicable to all SAN Volume Controller nodes. However, the location of the Ethernet adapter slots varies on each node. To display information about the Ethernet ports, including their location, issue the lsportfc command.

1. Read the safety information described in Preparing to remove and replace parts.
2. Carefully identify the 10 Gbps Ethernet port that is failing.
3. Turn off the node while ensuring that its data is mirrored and synchronized. See MAP 5350: Powering off a node for information. You power off the node because the serial cable must be removed to give access to the SFP transceivers.
4. Remove the fiber-optic cable from the port that has the problem by pressing its release tab and pulling the cable out. Be careful to exert pressure only on the connector and do not pull on the fiber-optic cable. If necessary, remove the serial cable to get access to the SFP transceiver. If the serial cable is removed, remember to replace it.
5. Remove the SFP transceiver from the port that has the problem.

   Locate the release handle that is incorporated into the SFP transceiver, unclip the handle, and then use the handle to pull out the SFP transceiver.

   Some SFP transceivers might have a plastic tag. If so, pull the tag to remove the SFP transceiver.

   Important: The customer might be using a non-standard SFP transceiver. Always check that the SFP transceiver that you replace matches the SFP transceiver that you remove.
6. Push the new SFP transceiver into the aperture. Gently push the SFP transceiver until it is fully inserted; then swing the release handle over to lock it in place.
   Figure 1 illustrates an SFP transceiver and its release handle.

   Figure 1. SFP transceiver

   
7. Replace the fiber-optic cable that was removed by gently pushing into the SFP transceiver until it clicks into place.
8. Replace the serial cable and secure it in place.
9. Power on the node by using the front panel power button.
10. Confirm that the error is now fixed. Use the front-panel display to check the SAN port status. If possible, check the status that is given by the Ethernet monitoring tools of the customer. Depending on the failure indication that you originally noted, either mark the error as fixed or restart the node.