SONAR ERROR: The registry value HKLM\Software\Microsoft\FRSMon\Sonar\Expand is missing.

Discussion in 'File Systems' started by Ben, Oct 30, 2006.

  1. Ben

    Ben Guest


    We are getting the below error in sonar on our DFS server when trying to
    expand the returned rows:

    S O N A R - Run Server Expansion Command
    ERROR: The registry value HKLM\Software\Microsoft\FRSMon\Sonar\Expand is
    Please add a value if you would like to run a server expansion command:
    <sonar_expand> server.fomain.local "DFSRoot|Data" FRSState

    What type and data should the registry key hold?

    Ben, Oct 30, 2006
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  2. Found this in the Sonar help:

    When you double-click a row, Sonar can call out to a program defined in the
    HKEY_LOCAL_MACHINE\Software\Microsoft\FRSMon\SONAR\Expand registry value
    (REG_SZ), and will execute "program name" with the parameters "<local
    computer name> <domain name> <replica root> <column name>". The user can
    thus define what program actually is executed; for example, it could be
    Health_chk, or a Connstat report, and this can even be column-sensitive.

    From what I understand, you have to do this association yourself, depending
    on which program you want to execute.

    Instead of using Sonar, have you considered using Ultrasound? It's available
    at We recommend this for long-term monitoring of FRS.
    Jill Zoeller [MSFT], Oct 31, 2006
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