MAP 5600: Fibre Channel

MAP 5600: Fibre Channel helps you to solve problems that occur on the SAN Volume Controller Fibre Channel ports.

1. Are you trying to resolve a Fibre Channel port speed problem?

   NO

   Go to step 2.

   YES

   Go to step 11.

2. (from step 1) Display the Fibre Channel port 1 status on the front panel display or the service assistant GUI. For more information, see Using the front panel of the SAN Volume Controller.
   Is the front panel display or the service assistant GUI on the SAN Volume Controller showing Fibre Channel port-1 active?

   NO

   A Fibre Channel port is not working correctly. Check the port status on the second line of the front panel display or the service assistant GUI.

   • Inactive: The port is operational but cannot access the Fibre Channel fabric. The Fibre Channel adapter is not configured correctly; the Fibre Channel small form-factor pluggable (SFP) transceiver failed; the Fibre Channel cable that is either failed or is not installed; or the device at the other end of the cable failed. Make a note of port-1. Go to step 7.
   • Failed: The port is not operational because of a hardware failure. Make a note of port-1. Go to step 9.
   • Not installed: This port is not installed. Make a note of port-1. Go to step 10.

   YES

   Press and release the right button to display Fibre Channel port-2.Go to step 3.

3. (from step 2)

   Is the front panel display or the service assistant GUI on the SAN Volume Controller showing Fibre Channel port-2 active?

   NO

   A Fibre Channel port is not working correctly. Check the port status.

   • Inactive: The port is operational but cannot access the Fibre Channel fabric. The Fibre Channel adapter is not configured correctly; the Fibre Channel small form-factor pluggable (SFP) transceiver failed; the Fibre Channel cable that is either failed or is not installed; or the device at the other end of the cable failed. Make a note of port-2. Go to step 7.
   • Failed: The port is not operational because of a hardware failure. Make a note of port-2. Go to step 9.
   • Not installed: This port is not installed. Make a note of port-2. Go to step 10.

   YES

   Press and release the right button to display Fibre Channel port-3. Go to step 4.

4. (from step 3)

   Is the front panel display or the service assistant GUI on the SAN Volume Controller showing Fibre Channel port-3 active?

   NO

   A Fibre Channel port is not working correctly. Check the port status.

   • Inactive: The port is operational but cannot access the Fibre Channel fabric. The Fibre Channel adapter is not configured correctly; the Fibre Channel small form-factor pluggable (SFP) transceiver failed; the Fibre Channel cable that is either failed or is not installed; or the device at the other end of the cable failed. Make a note of port-3. Go to step 7.
   • Failed: The port is not operational because of a hardware failure. Make a note of port-3. Go to step 9.
   • Not installed: This port is not installed. Make a note of port-3. Go to step 10.

   YES

   Press and release the right button to display Fibre Channel port-4. Go to step 5.

5. (from step 4)

   Is the front panel display or the service assistant GUI on the SAN Volume Controller showing Fibre Channel port-4 active?

   NO

   A Fibre Channel port is not working correctly. Check the port status.

   • Inactive: The port is operational but cannot access the Fibre Channel fabric. The Fibre Channel adapter is not configured correctly; the Fibre Channel small form-factor pluggable (SFP) transceiver failed; the Fibre Channel cable that is either failed or is not installed; or the device at the other end of the cable failed. Make a note of port-4. Go to step 7.
   • Failed: The port is not operational because of a hardware failure. Make a note of port-4. Go to step 8.
   • Not installed: This port is not installed. Make a note of port-4. Go to step 10.

   YES

   If there are more than four Fibre Channel ports on the node, repeat step 5 for each additional Fibre Channel port that uses the service assistant.

   Go to step 6.

6. (from step 5)

   A previously reported fault with a Fibre Channel port is no longer being shown. A problem with the SAN Fibre Channel fabric might be fixed or there might be an intermittent problem.

   Check with the customer to see whether any Fibre Channel ports are disconnected or if any component of the SAN Fibre Channel fabric failed and was recently fixed.

   Is the Fibre Channel port failure explained by the previous checks?

   NO

   There might be an intermittent Fibre Channel error.

   1. Use the SAN problem determination procedure to check for and resolve any Fibre Channel fabric connection problems. If you resolve a problem, continue with MAP 5700: Repair verification.
   2. Check whether similar Fibre Channel errors occurred recently on the same port on this SAN Volume Controller node. If they have, replace the Fibre Channel cable, unless it was replaced.
   3. Replace the Fibre Channel SFP transceiver, unless it was replaced.
      Note: SAN Volume Controller nodes are supported by both longwave SFP transceivers and shortwave SFP transceivers. You must replace an SFP transceiver with the same type of SFP transceiver. If the SFP transceiver to replace is a longwave SFP transceiver, for example, you must provide a suitable replacement. Removing the wrong SFP transceiver might result in loss of data access. See the "Removing and replacing the Fibre Channel SFP transceiver on a SAN Volume Controller node" documentation to find out how to replace an SFP transceiver.
   4. Replace the Fibre Channel adapter assembly that is shown in Table 1.

      Table 1. Fibre Channel assemblies

      Node	Adapter assembly
      SAN Volume Controller 2145-CG8 port 1, 2, 3, or 4 (slot 1)	Four-port Fibre Channel HBA
      SAN Volume Controller 2145-CG8 port 5, 6, 7, or 8 (slot 2)	Four-port Fibre Channel HBA
      SAN Volume Controller 2145-CF8 port 1, 2, 3, or 4	Four-port Fibre Channel HBA
      SAN Volume Controller 2145-DH8 port 1, 2, 3, or 4 (slot 1 mandatory; the first FC adapter)	Four-port Fibre Channel adapter
      SAN Volume Controller 2145-DH8 port 5, 6, 7, or 8 (slot 2 optional; the second FC adapter)	Four-port Fibre Channel adapter
      SAN Volume Controller 2145-DH8 port 9, 10, 11, or 12 (slot 5 optional; the third FC adapter)	Four-port Fibre Channel adapter

   5. Verify the repair by continuing with MAP 5700: Repair verification.

   YES

   Verify the repair by continuing with MAP 5700: Repair verification.

7. (from steps 2, 3, 4, and 5)

   The port noted on the SAN Volume Controller is showing a status of inactive. For certain models, this inactive status might occur when the Fibre Channel speed is not set correctly.

8. (from step 7)

   The noted port on the SAN Volume Controller displays a status of inactive. If the noted port still displays a status of inactive, replace the parts that are associated with the noted port until the problem is fixed in the following order:

   1. Fibre Channel cables from the SAN Volume Controller to Fibre Channel network.
   2. Faulty Fibre Channel fabric connections, particularly the SFP transceiver at the Fibre Channel switch. Use the SAN problem determination procedure to resolve any Fibre Channel fabric connection problem.
   3. SAN Volume Controller Fibre Channel SFP transceiver.
      Note: SAN Volume Controller nodes are supported by both longwave SFPs and shortwave SFPs. You must replace an SFP with the same type of SFP transceiver that you are replacing. If the SFP transceiver to replace is a longwave SFP transceiver, for example, you must provide a suitable replacement. Removing the wrong SFP transceiver might result in loss of data access. See the "Removing and replacing the Fibre Channel SFP transceiver on a SAN Volume Controller node" documentation to find out how to replace an SFP transceiver.
   4. Replace the Fibre Channel adapter assembly as shown in Table 1.
   5. Verify the repair by continuing with MAP 5700: Repair verification.
9. (from steps 2, 3, 4, and 5)

   The noted port on the SAN Volume Controller displays a status of failed. Verify that the Fibre Channel cables that connect the SAN Volume Controller nodes to the switches are securely connected. Replace the parts that are associated with the noted port until the problem is fixed in the following order:

   1. Fibre Channel SFP transceiver.
      Note: SAN Volume Controller nodes are supported by both longwave SFP transceivers and shortwave SFP transceivers. You must replace an SFP transceiver with the same type of SFP transceiver. If the SFP transceiver to replace is a longwave SFP transceiver, for example, you must provide a suitable replacement. Removing the wrong SFP transceiver might result in loss of data access. See the "Removing and replacing the Fibre Channel SFP transceiver on a SAN Volume Controller node" documentation to find out how to replace an SFP transceiver.
   2. Replace the Fibre Channel adapter assembly as shown in Table 1.
   3. Verify the repair by continuing with MAP 5700: Repair verification.
10. (from steps 2, 3, 4, and 5)

    The noted port on the SAN Volume Controller displays a status of not installed. If you replaced the Fibre Channel adapter, make sure that it is installed correctly. If you replaced any other system board components, make sure that the Fibre Channel adapter was not disturbed.

    Is the Fibre Channel adapter failure explained by the previous checks?

    NO

    1. Replace the Fibre Channel adapter assembly as shown in Table 1.
    2. If the problem is not fixed, replace the Fibre Channel connection hardware in the order that is shown in Table 2.

       Table 2. SAN Volume Controller Fibre Channel adapter connection hardware

       Node	Adapter connection hardware
       SAN Volume Controller 2145-CG8 port 1, 2, 3, or 4 (slot 1)	PCI Express® FC with Riser card assembly 1 System board
       SAN Volume Controller 2145-CG8 port 5, 6, 7, or 8 (slot 2)	PCI Express® FC with Riser card assembly 2 System board
       SAN Volume Controller 2145-DH8 port 1-8	PCI Express® Riser card assembly 1 System board
       SAN Volume Controller 2145-DH8 port 9-12	PCI Express® Riser card assembly 2 System board

    3. Verify the repair by continuing with MAP 5700: Repair verification.

    YES

    Verify the repair by continuing with MAP 5700: Repair verification.

11. (from step 1)

    If the operating speed is lower than the operating speed that is supported by the switch, a high number of link errors are being detected.

    To display the current speed of the link, see Determining the Fibre Channel port speed

    Is the port operating at lower than the expected speed?

    NO

    Repeat the check with the other Fibre Channel ports until the failing port is located. If no failing port is located, the problem no longer exists. Verify the repair by continuing with MAP 5700: Repair verification.

    YES

    Perform the following steps:

    1. Check the routing of the Fibre Channel cable to ensure that no damage exists and that the cable route contains no tight bends (no less than a 3-inch radius). Either reroute or replace the Fibre Channel cable.
    2. Remove the Fibre Channel cable for 2 seconds and then reinsert it to force the Fibre Channel adapter to renegotiate its operating speed.
    3. Recheck the speed of the Fibre Channel port. If it is now correct, the problem is resolved. Otherwise, the problem might be caused by one of the following conditions:
       • Four-port Fibre Channel HBA
       • SAN Volume Controller SFP transceiver
       • Fibre Channel switch gigabit interface converter (GBIC) or SFP transceiver
       • Fibre Channel switch
       Recheck the speed after you change any component until the problem is resolved and then verify the repair by continuing with MAP 5700: Repair verification.