DS8000 Service Documentation Version 6.3.3

MAP7010 Private network isolation procedure 10

The Network Topology tool has been used to determine that one management console lost connectivity to all nodes through both networks (Black/eth0 and Gray/eth3).

Related tasks:
How to start the service information center

MAP7010 Section-1

About this task

This failure cannot be caused by a single network hardware problem.

Procedure

  1. Is the failing management console an external management console?
    • Yes, continue with the next step.
    • No, continue with step 5.
  2. Did this failure occur following the installation of the external management console?
    • Yes, continue with the next step.
    • No, continue with step 5.
  3. Check that the management console was configured correctly. Only two management consoles within a storage complex are supported. One management console must be defined as the primary and one as a secondary. To verify this:
    1. From the navigation area, click HMC Management.
    2. In the right work area, go to the Storage Server HMC Tasks section and click Query/Activate HMC Role Selection. The current HMC role is displayed along with the option to change the setting.
    If no problem was found, then continue with the next step.
  4. Ensure that the cables between the external management console and the storage facility are connected at both ends. Refer to the MES instructions that you are using to install the external management console and ensure that the private network cabling is correct.
  5. Restart the management console.
    1. Ensure that the customer is not currently accessing the management console to perform configuration or copy services functions.
    2. Close or cancel any tasks or windows that are currently open.
    3. From the navigation area, click HMC Management.
    4. In the right work area, go to the Operations section and click Shut Down or Restart. The Shutdown or Restart window opens.
    5. Select Restart HMC.
  6. Use the Network topology tool as described in MAP7001 Using the network topology tool to check if the problem is resolved. Is the network problem resolved?
    • Yes, go to MAP1500 Ending a service action to close the serviceable event, save the network topology, and ensure good subsystem status.
    • No, continue with the next step.
  7. Ensure that the microcode levels of the management consoles are compatible. Consult your next level of support for this storage model.