Removing and replacing an Ethernet SFP transceiver

When a failure occurs on a single 10 or 25 gigabits per second (Gbps) Ethernet link, the small form-factor pluggable (SFP) transceiver might need to be replaced.

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. In addition, the type of card that is supported can vary. For example, the 25 Gbps Ethernet adapter (RoCE or iWARP) is only supported on SAN Volume Controller 2145-SV1 nodes. Use the management GUI to see information about the Ethernet ports or issue the lsportip command.

1. Read the safety information that is described in Preparing to remove and replace parts.
2. Identify the 10 or 25 Gbps Ethernet port that is failing.
3. Before you turn off the node, ensure that its data is mirrored and synchronized. For more information, see MAP 5350: Powering off a node. 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 out the cable. 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.
5. Release the the latch on the faulty SFP transceiver and remove it from its slot. The SFP transceiver can vary, depending on the type of network adapter used.
   • Figure 1 illustrates an SFP transceiver and its release handle. To release this type of SFP transceiver, unclip the latching handle then pull the latching handle.
     Figure 1. SFP transceiver

     
   • Figure 2 shows an example of an SFP transceiver for a 25 Gbps (RoCE) networking adapter. To release this type of SFP transceiver, gently pull on the protruding tab of the SFP.
     Figure 2. 25 Gbps SFP transceiver (RoCE)

     
   • 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. Insert the replacement SFP transceiver fully into the aperture that is vacated in step 5.
   • To insert an SFP transceiver like the one shown in Figure 1, open the latching handle of the transceiver, push the transceiver fully into its slot, then close the latching handle.
   • To insert an SFP transceiver like the one shown in Figure 2, press the transceiver into its slot until the device clicks into place.
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.
10. Confirm that the error is now fixed. If possible, check the status that is given by the Ethernet monitoring tools. Depending on the failure indication that you originally noted, either mark the error as fixed or restart the node.