ADDM: How to avoid duplicate CI's when adding a consolidator after data has been already synchronized from a scanner to CMDB?

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    This document contains official content from the BMC Software Knowledge Base. It is automatically updated when the knowledge article is modified.


    PRODUCT:

    BMC Discovery


    COMPONENT:

    BMC Atrium Discovery and Dependency Mapping


    APPLIES TO:

    BMC Atrium Discovery and Dependency Mapping



    QUESTION:

    A customer currently is synchronizing data to CMDB from a scanning appliance. He now plans to add a consolidation appliance between the scanner and CMDB. Will this cause any problem on the CMDB side, for example duplicate CIs?


    ANSWER:

    Yes, synchronizing from the new consolidator could cause duplicate CIs in the CMDB, because the consolidator will generate its own keys, which may not match the ones that were used by the scanner to sync with the CMDB.

    To avoid this, you can export the root node keys from the scanner and import them to the consolidator. For reference, see https://docs.bmc.com/docs/display/DISCO111/Moving+node+keys.

    Basically, the steps are:
    1) Deploy the new consolidator, but do not connect it to the scanner yet.
    2) While no scans are running on the scanning appliance, Stop All Scans from the UI.
    3) From the scanner command line, run the following command:

    tw_root_node_key_export appliance01_key_info.xml
      
     When prompted, enter the password for the UI "system" account.
      
    4) Transfer the /usr/tideway/appliance01_key_info file to the consolidator. 

    5) From the consolidator command line, run the following command:  
     tw_root_node_key_import appliance01_key_info.xml
      
      
    When prompted, enter the password for the UI "system" account. 

    6) Disable the CMDB sync on the scanner 
    7) Enable the CMDB sync on the consolidator 
    8) Connect the scanner and consolidator 
    9) Start the scans on the scanner 
      

     


    Article Number:

    000028053


    Article Type:

    FAQ/Procedural



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