IBM 26R0881 User Guide - Page 36

Swapping addresses between blades If you want to swap the addresses of one blade to a different blade in a different slot (potentially a different chassis), you can move the OFM configuration from the first slot to the second. 1. Edit the OFM configuration and swap the configurations of the two slots. 2. Apply the new configuration. Only the configuration of these two slots will be updated. Note: v You will have to manually swap the boot sequence of the two slots (if necessary). v In cases where slot based configuration has been used on the switches, such as VLAN for Ethernet or Zoning for Fibre Channel, those configurations will need to be updated as well. Replacing AMM IP addresses The OFM configuration is defined per AMM IP address. If you change the IP of the AMM in a chassis and reapply the same OFM configuration file, then the OFM configuration changes. For example, assume that Chassis-A uses IP-A, and Chassis-B uses IP-B, and you apply a OFM configuration for these two chassis. If you swap the IPs so that Chassis-A uses IP-B, and Chassis-B uses IP-A, then re-apply the same OFM configuration file, the OFM configuration will be swapped between the two chassis. Replacing the AMM in a single AMM environment You can replace the AMM in a single AMM environment. When you replace an AMM and you don't have a standby AMM in the chassis, the OFM configuration is cleared. If the current AMM is functioning, the best approach is to insert the new AMM in the second slot as a standby AMM for a few minutes. This allows the primary AMM to synchronize the OFM configuration with the standby AMM before the primary AMM is removed. If this is not possible, you can reapply the OFM configuration after inserting the new AMM. By default, the AMM clears its OFM configuration when inserted into a new chassis. However, if any of the blades are already powered on when the AMM is inserted into a new chassis, the AMM takes the OFM configuration from those blades. If the AMM was reinserted into the same chassis it was previously in, it continues to use the OFM configuration that is defined on the AMM. During the period that the AMM was not in the chassis, the OFM configuration might have changed. In this case, inconsistencies and address duplications can occur. If the AMM configuration is reset to factory defaults, then the OFM configuration is cleared the same way as if a new AMM is inserted into a chassis. Also, the OFM configuration is not included in the AMM configuration file, when restoring the AMM configuration from a file the OFM configuration has not changed. Note: You might have to wait longer if the AMM you insert in the standby slot does not have the same firmware level as the primary. In that case, the standby AMM will be flashed first and then the data will be synchronized. 24 IBM BladeCenter Open Fabric Manager Installation and User's Guide