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Druva Documentation

Frequently asked questions (FAQs)

Phoenix Editions: File:/tick.png Business File:/cross.png Enterprise File:/tick.png Elite


I removed data from my disks to optimize storage I use on Druva Phoenix. I haven't added a file but I see a considerable change in Source+Data. What does it mean?

Druva Phoenix detects a change even if you remove data from your disks. For example, Druva Phoenix backed up 100 GB of data from your virtual machine. Later on, you removed 25 GB of data and Druva Phoenix runs another backup for your virtual machine. The Source+Change section shows 125 GB because Druva Phoenix detects a 25 GB modification on the virtual machine. However, you are not charged for 125 GB. You are charged only for the storage you consume. The Source+Change only shows a chart that indicates the data modified on your server.

Why is the host field blank for some of the FLR proxies that I registered?

If you deploy an FLR proxy virtual machine to a Windows Server 2008 or Windows Server 2008 R2 host, Druva Phoenix cannot list its host since Guest integration service is not available for Hyper-V 2008 hosts. 

Why do I see a different name on the Management Console when I created the FLR proxy virtual machine with a different name on the host?

If you deploy the FLR proxy on a Windows Server 2008 or Windows Server 2008 R2 host, Druva Phoenix registers the FLR proxy with the virtual machine's guest operating system's hostname. By default, the guest operating system hostname is FLRProxy, and you have login to the FLR proxy virtual machine, manually change its hostname, and reboot the FLR proxy virtual machine to update its name on the Phoenix Management Console. 

How do I configure Druva Phoenix to use third party VSS providers? 

  1. From the command prompt, run the following command:
    vssadmin list providers

    Running this command displays a list of VSS providers, and the provider IDs. 

  2. Stop the Phoenix agent service. 
  3. Open the Phoenix.cfg file in a text editor. 
    The Phoenix.cfg file is available at the following location:
    Windows 2012 and 2008: C:\ProgramData\Phoenix
  4. Add the VSS_PROVIDER_ID_VOLUMES parameter, and set its value to reflect the drives for which you want the Phoenix agent to recognize the third-party VSS provider that you configured. 
    Use the following format:
    VSS_PROVIDER_ID_VOLUMES = {"<Drive>": "{<Provider ID>}", "Drive": "{<Provider ID>}"}
    For example, if you want to set VSS providers for C drive, E drive, and the cluster shared volume, the parameter looks like the following:
        'C:\\' : '{b5946137-7b9f-4925-af80-51abd60b20d5}',
        'E:\\' : '{24602736-bed9-4619-91b0-243447c6409c}',
        'C:\\ClusterStorage\\Volume1\\' : '{b5946137-7b9f-4925-af80-51abd60b20d5}',

     For a clustered shared volume, add a double backslash (\\) at the end of the UNC path that you specify (as shown in the example above).

  5. Save the Phoenix.cfg file.
  6. Start the Phoenix agent service. 


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