Reinstall of cloned server deconfigures original machine

Last post 09-09-2011, 11:39 AM by Bill Baumann. 4 replies.
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  • Reinstall of cloned server deconfigures original machine
    Posted: 08-28-2011, 11:03 PM


    I am cloning a Windows server say called "A" and the new server is called say "B".

    "A" has a Commvault Windows filesystem agent on it.

    When I want to reinstall the Commvault agent on server "B":

    1. I first remove the filesystem agent then the base software on "B"

    2. Install the Windows agent from DVD on "B"

    It is necessary to reinstall the agent on "B" as the Commvault server name in the registry is still known as "A". However step 1. deconfigures "client computer" "A" on the commserv.

    Is there a way I can resintall the Commvault agent without it deconfiguring "client computer" "A"?

    I am using Commvault version 9.

  • Re: Reinstall of cloned server deconfigures original machine
    Posted: 08-29-2011, 7:09 AM

    There isn't really.

    Only way to work around this is to rename client A via the Commcell console (right click -> properties -> General -> Edit).

    Then reinstall the client on server B, and change the name for server A back.

    This will probably screw up the (Commvault) registry on the client, but if you have multi-homed (i.e. production and management interface) machines, this might be an option.

    During install on server B, you are asked for a clientname. If you specify a different one it should create a seperate client.

    If it jams, force it.
    If it breaks, it needed replacing anyway.
  • Re: Reinstall of cloned server deconfigures original machine
    Posted: 09-05-2011, 1:55 PM
    • Aplynx is not online. Last active: 07-17-2019, 2:54 PM Liam
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    manual removal of commvault software on cloned machine:


    1) Stop the CommVault Services on the Client

    2) Navigate to the installation drive under Program Files remove the CommVault and/or CommVault Systems Folder

    3) Backup the registry

    4) Open the registry and delete the following keys:




    Please note in versions earlier than 7.0, Instancexxx would be ControlSetxxx

    5) Once the registry keys and the installation folder are removed you can then install the new machine
    The procedure would be to register the new client, as described at the link:

    While in step 4 use the override to configure the proper host name and client name for the client.
  • Re: Reinstall of cloned server deconfigures original machine
    Posted: 09-08-2011, 9:47 PM


    The alternative is to put in a fake IP address of the Commserve in c:\windows\system32\drivers\etc\hosts file so the uninstall will not update the Commserve.

    Once you complete your uninstall remove the entry from the hosts file and perform a new install.

  • Re: Reinstall of cloned server deconfigures original machine
    Posted: 09-09-2011, 11:39 AM

    The act of running a add\remove on the Win iDA is what deconfigures it in the CS. You should either use the manual removal posted by Liam which will not deconfigure client A, or before you put the machine on the network add the host file with a fake CS IP so it cannot talk to the CS during the uninstall. Personally i do the manual removal to avoid other erros abotu not being able to talk tothe CS during the uninstall using a fake IP.




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