MAP6580 Customer Ethernet connection problem

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Use this procedure to analyze problems with management console (HMC) Ethernet connection to the customer LAN.

About this task

Use MAP7000 Entry point for storage facility private network problems to analyze problems with the DS8000 private network.

MAP6580 Section-1

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Procedure

  1. Can the customer connect to the HMC through the customer network?
  2. Ensure that the customer network cable is properly connected to the customer network connector at the rear of the HMC port eth2 or eth1 if it is used. See , Table 1, .
    Table 1. Small form factor management console customer network connections (rear)
    Index Management console connection or component
    1 Ethernet eth2 (customer), management console 1 (MC 1)
    2 Ethernet eth2 (customer), management console 2 (MC 2)
    3 Ethernet eth1 (second customer LAN connection, if used), management console 1 (MC 1)
    4 Ethernet eth1 (second customer LAN connection, if used), management console 2 (MC 2)
  3. Observe the amber link status LED next to the customer's network connector (eth2) . The LED is lit when the Ethernet controller receives a LINK pulse from the hub.
    For management consoles with second customer LAN connection (eth1), observe the 100/ACT LED indicator. The LED is lit (solid or flashing) when the link is active.
    Is the link status LED lit?
  4. Work with the customer to check the following conditions:
    1. The other end of the Ethernet cable is plugged correctly to the customer-supplied switch or hub.
    2. The switch or hub is functioning correctly.
    3. The port on the hub is working correctly. (Ask the customer to move the cable to a different port and retry the operation.)
    4. The customer-supplied Ethernet cable is working correctly. (Swap the cable and verify whether the problem still exists.)
  5. Did you resolve the problem with the customer's network or cable?
    • Yes, ask the customer to retry the operation. If the customer test still fails, go to MAP6580 Section-2.
    • No, contact next level of support.

MAP6580 Section-2

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Procedure

  1. Verify that the network settings are correct.
    1. On the HMC, select: HMC Management > Operations > Change Network Settings.
    2. Use the customer supplied customization worksheets to check that the settings are correct for eth2.
    3. For management consoles with second customer LAN connection (eth1), use the customer supplied customization worksheets to check that the settings are correct for eth1.
    CAUTION:
    Do not change network settings for the other Ethernet ports.
  2. Did you find the problem with the network settings?
    • Yes, change the settings to the appropriate values and ask the customer to retry the operation. If problems still persist, then go to the next step. Note: This change requires that the HMC is rebootedrestarted. Ensure that the customer is not accessing the management console through the ESSNI interface.
    • No, go to the next step.
  3. Test the connectivity from the HMC to the customer network.
    1. Ask the customer to supply an IP address for a working device that can be contacted on their network. (If the HMC is connected through a gateway or firewall, try that first.)
    2. Select HMC Management > HMC Configuration > Test Network Connectivity.
    3. On the HMC, select: HMC Management > Operations > Test Network Connectivity.
    4. Enter the customer supplied IP address in the pop-up window for the ping utility and click OK.
    5. Allow 10 seconds and then click Stop.
      • Successful communication results in a series of messages to indicate that data was received.
      • Unsuccessful communication results in no data being received or a timeout message.
  4. Was the communication test successful?
    • Yes, go to the next step.
    • No, contact next level of support.
  5. Ask the customer to attempt to 'ping' the HMC IP address from a computer on their network. If the HMC connects through a gateway or firewall, then attempt to ping the HMC from a device on the same side of the gateway as the HMC. Was the 'ping' successful?
    • Yes, go to step 7.
    • No, go to the next step.
  6. Verify the following conditions:
    1. The network settings were correct on the customization worksheets.
    2. If a gateway or firewall is being used, then ensure that the ping test still fails on the HMC side of the gateway.
    3. If no problem was identified, contact next level of support.
  7. Ask the customer to 'ping' the HMC host name. Was the 'ping' test successful?
    • Yes, there does not appear to be an HMC network connectivity problem.
      • If the customer is experiencing problems with ESSNI, CLI, or other applications, go to Start here and look for the symptoms described.
      • If the customer is still experiencing problems in accessing the HMC, contact your next level of support for assistance.
    • No, there appears to be a problem with resolution of the HMC host name.
      • Verify that the host name was entered correctly in step 1.
      • Ask the customer to check that their DNS server is configured and working correctly.