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DHCP Failover Cluster

    Question

  • Hi,

    I want to setup two DHCP Server in a failover cluster in two different networks
    (Requests arrive over IP Helper).

    Is it possible to do it without shared memory like iSCSI or SAN? Is it possible do this
    with a file share too?

    Why isn't it possible, that the DHCP Servers replicates their Database without shared memory?
    With an shared memory, I have an further single point of failure ...

    Thanks for help

    Tuesday, March 23, 2010 9:47 AM

Answers

  • You can see the step-by-step guide here:

    http://technet.microsoft.com/en-us/library/ee405263(WS.10).aspx

    You need to have a shared drive (storage) not memory in order to configure a Microsoft cluster (depends on the type of the cluster).

    You must use shared storage that is compatible with Windows Server 2008 R2. For a two-node failover cluster, such as the cluster in this test lab, the storage should contain at least two separate volumes , configured at the hardware level. Do not expose the clustered volumes to servers that are not in the cluster. One volume will function as the witness disk. One volume will contain the files that are being shared between the cluster nodes. This volume serves as the shared storage on which you will create the virtual machine and the virtual hard disk. To complete the steps as described in this document, you only need to expose one volume.

     


    Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX http://blogs.sivarajan.com/ http://publications.sivarajan.com/ This posting is provided "AS IS" with no warranties, and confers no rights.
    Wednesday, March 24, 2010 1:29 PM

All replies

  • You can see the step-by-step guide here:

    http://technet.microsoft.com/en-us/library/ee405263(WS.10).aspx

    You need to have a shared drive (storage) not memory in order to configure a Microsoft cluster (depends on the type of the cluster).

    You must use shared storage that is compatible with Windows Server 2008 R2. For a two-node failover cluster, such as the cluster in this test lab, the storage should contain at least two separate volumes , configured at the hardware level. Do not expose the clustered volumes to servers that are not in the cluster. One volume will function as the witness disk. One volume will contain the files that are being shared between the cluster nodes. This volume serves as the shared storage on which you will create the virtual machine and the virtual hard disk. To complete the steps as described in this document, you only need to expose one volume.

     


    Santhosh Sivarajan | MCTS, MCSE (W2K3/W2K/NT4), MCSA (W2K3/W2K/MSG), CCNA, Network+ Houston, TX http://blogs.sivarajan.com/ http://publications.sivarajan.com/ This posting is provided "AS IS" with no warranties, and confers no rights.
    Wednesday, March 24, 2010 1:29 PM
  • Presumably these two nodes could exist in separate sites with a high speed link between them.

    Was thinking of doing something similar with a node in each site connected to a SAN that was replicating across the link. (HP EVA SAN)

    Tuesday, June 08, 2010 3:21 PM