Replace Redundancy Modules with 1756-RM3 Modules

Partner redundancy modules must have the same catalog number, series, and firmware. To change the catalog number of a redundancy module, you must replace both partner modules with the same catalog number. A switchover is not required to replace a redundancy module pair.
To replace a redundancy module in the secondary chassis with a new module that has the same catalog number, series, and firmware, see Perform a Direct Module Replacement in the Secondary Chassis.
To replace redundancy modules of any catalog number with 1756-RM3 modules, follow these steps.
  1. Access the RMCT for the redundancy module in the primary chassis.
  2. Record all configuration settings on the Configuration tab, so you can restore them once the procedure is complete.
  3. On the Configuration tab, set the following redundancy module options:
    • Set Auto-synchronization to Never.
    • Disable fiber security, if applicable
    Redundancy module options
  4. On the Synchronization tab, select Disqualify Secondary.
  5. Unplug the fiber cables from both redundancy modules.
  6. Close any open RMCT sessions that are connected to the redundancy modules.
  7. Remove the old redundancy module from the
    secondary
    chassis and continue as follows:
    • If the replacement modules require a firmware update, proceed to step 8.
    • If the replacement modules already have the latest firmware, remove the other redundancy module from the
      primary
      chassis and proceed to Step 9.
  8. To minimize the impact on execution by the primary controller, use the
    secondary
    chassis to update the firmware of both new redundancy modules as follows.
    1. Insert the new redundancy module into the same slot as the old redundancy module.
    2. Wait for a message to update firmware, or if the replacement module is not new from the factory, wait for the 'DISQ' status message to appear.
    3. Update the firmware on the new redundancy module by using ControlFLASH Plus software.
      TIP: Rarely, a 'Failed to update to the target advice' error can appear. In this case, close the error dialog box and click the Retry button.
    4. When the firmware update is complete,
      remove
      the new redundancy module from the chassis.
    5. When the firmware update is complete for both replacement modules, close the ControlFLASH Plus window.
  9. In the primary chassis, insert the new primary redundancy module into the same slot as the old primary redundancy module.
  10. Wait for the 'PRIM' status message to appear on the front panel of the primary redundancy module.
  11. Before you insert the new secondary redundancy module, reconnect the fiber cables between the new redundancy modules.
    Make sure that the same cable is connected to the same port of each module.
  12. In the secondary chassis, insert the new secondary redundancy module into the same slot as the old secondary redundancy module.
  13. Wait for the 'DISQ' status message to appear on the front panel of the secondary redundancy module.
  14. If not already installed, upload the EDS files for the redundancy modules.
    For more details, see EDS Files.
  15. From a network browser, access the RMCT for the redundancy module in the primary chassis.
    If an 'Unknown Product Code' error appears, click the Backplane icon for the primary and secondary chassis in the network browser to update the module identities in the chassis before you open the RMCT.
  16. On the Configuration tab in the RMCT, restore the original configuration settings that you recorded in step 2.
  17. If the redundant chassis pair synchronized automatically after you inserted the new secondary module, the replacement process is complete. Otherwise, proceed to step 18.
  18. On the Synchronization Status tab, verify that the compatibility status of the primary and secondary chassis is Full.
    Full compatibility status for primary and secondary chassis
  19. On the Synchronization tab, select Synchronize Secondary.
    Synchronize Secondary command
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