Replacing the management module in a single management module environment

You can replace the management module in a single management module environment.

About this task

When you replace a management module and you don't have a standby management module in the chassis, the IFM configuration is cleared. If the current management module is functioning, insert the new management module in the second bay as a standby management module for a few minutes. This allows the primary management module to synchronize the IFM configuration with the standby management module before the primary management module is removed. If this is not possible, you can reapply the IFM configuration after inserting the new management module. By default, the management module clears its IFM configuration when inserted into a new chassis. However, if any of the servers are already powered on when the management module is inserted into a new chassis, the management module takes the IFM configuration from those servers.

If the management module was reinserted into the same chassis it was previously in, it continues to use the IFM configuration that is defined on the management module. During the period that the management module was not in the chassis, the IFM configuration might have changed. In this case, inconsistencies and address duplications can occur.

If the management module configuration is reset to factory defaults, the IFM configuration is cleared the same way as if a new management module is inserted into a chassis. Also, the IFM configuration is not included in the management module configuration file, so when restoring the management module configuration from a file, the IFM configuration does not change.

Notes:
  • You might have to wait longer if the management module you insert in the standby bay does not have the same firmware level as the primary. In that case, the standby management module is flashed first and then the data is synchronized.
  • (IBM Flex System® devices only) If an error occurs during the CMM replacement procedure, complete the following steps.
    1. From the CMM Web interface, select Mgt Module Management > Properties > Advanced Failover.
    2. Wait several minutes while the original CMM becomes the primary CMM again. Wait one hour for the configuration to synchronize.
    3. To complete the CMM replacement, repeat Step 1.