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Force DPM to use a specific network adapter RRS feed

  • Question

  • Hello Everyone,

    I have several network adapters in a server running DPM and I would like to force DPM to use a specific adapter.  Please note that I also have other apps running on this server and these other apps are already configured to use their respective adapters.  I am looking for a DPM specific solution not just putting the adapter at the top of the list using ncpa.cpl

    thanks for any ideas/suggestions

    Ron


    Ron Finnegan DHHS NIH NIMH LNT

    Wednesday, June 5, 2013 10:35 PM

All replies

  • Hi,

    Using Backup Network Address
    http://technet.microsoft.com/en-us/library/cc964298.aspx

    BLog
    http://blogs.technet.com/askcore/archive/2009/03/26/so-you-want-to-try-a-backup-network.aspx


    STEP-BY-STEP
    ===========

    Given the following:

    DPM.corp.com server BACKUP Address = 192.168.1.23
    DPM.corp.com server production Address = 10.10.10.23
    SQL.corp.com  server BACKUP Address = 192.168.1.24
    SQL.corp.com  server production Address = 10.10.10.24

    1. The prerequisites for backup network functionality are as follows.

    DNS resolution on DPM server for the Protected Server (PS) (e.g. ps.x.y.com) should be able to resolve it to the backup IP (192.168.1.24 ).
    DNS resolution on SQL Server for the DPM server (e.g. dpm.x.y.com) should be able to resolve it to the backup IP (192.168.1.23).

    This will also work with using a Host file since most likely the backup network will not have DNS Servers.

       A. Add the FQDN and Backup NIC's IP address of the DPM Server to the protected machines HOSTS file. This forces the protected machine to communicate with the DPM server over the backup NIC.

    DPM.corp.com 192.168.1.23

       B. Add the FQDN and Backup NIC's IP address of the protected machine to the DPM servers HOSTS file. This forces the DPM server to communicate with the protected machine using the backup NIC.

    SQL.corp.com  192.168.1.24


    2.  The backup subnet address and mask should be configured through Add-BackupNetworkAddress powershell applet.

    The subnet specification should be such that it covers the entire range of backup network addresses of DPM server and intended PS's.

    To calculate Mask bits use: http://www.subnet-calculator.com/subnet.php?net_class=B

    e.g. "Add-BackupNetworkAddress -DpmServername DPMServer -Address 192.168.1.0/24 -SequenceNumber 1".
            "Add-BackupNetworkAddress -DpmServername DPMServer -Address 10.10.10.0/28 -SequenceNumber 2".

    NOTE: You also need to configure the production network as a 2nd backup network for a fallback and also for protected servers not configured with a backup network.

    3. DPM Agents (DPM and PS) should be restarted to ensure that the backup network settings are in effect.   (Stop any active backup jobs, then run net stop DPMRA on both DPM and PS Server)


    MORE INFORMATION
    ==================

    To list configured backup networks use:

       Get-BackupNetworkAddress -DpmServername DPMServer

    To Remove backup networks use:

       Remove-BackupNetworkAddress -DpmServername DPMServer -Address 192.168.1.0/24


    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT] This posting is provided "AS IS" with no warranties, and confers no rights.

    Friday, June 7, 2013 8:08 PM
    Moderator