Recreate/replace single node cluster, using quorum from other clus

Discussion in 'Clustering' started by Stefan, Aug 11, 2006.

  1. Stefan

    Stefan Guest

    Hi,

    I'm trying to recreate a single node cluster using the quorum disk from an
    other cluster.

    In short:
    1: Server A - shuts down
    2: Quorum disk (still intact) moves to Server B
    3: How to create cluster on Server B using Quorum from Server A?

    I tried the ClusterRecovery, but therefor the cluster(name) must be online?

    Any suggestions?

    Thanks in advance,

    Rgds,
    Stefan
     
    Stefan, Aug 11, 2006
    #1
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  2. Rodney R. Fournier [MVP], Aug 11, 2006
    #2
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  3. Stefan

    Stefan Guest

    Hi Rod,

    I allready thought my question was a bit difficult to understand. I'll try
    to explain it a little more clearly.

    The whole story:
    We're planning to move our complete server environment to a new location
    (with a new EMC SAN storage: DMX2000). Currently all our cluster disks are on
    a DMX3000 which we would like to migrate to the new SAN. In fact... all of
    our servers will be re-installed (I know, hell of a job :))

    So, the newly installed servers will get the cluster disks attached which
    were first hosted on a different SAN and connected to the old servers. My new
    servers will see disks with data and most important the quorum disk. My
    question is... I have a new server, with a disk attached with cluster
    information (quorum) how can I get my new server installed as a cluster node
    using the quorum information from the other (old) server.

    B.t.w. all of our clusters are multi-node clusters, I only use a single node
    cluster for testing.

    Do you have any suggestions?

    Thanks,

    Cheers,
    Stefan.
     
    Stefan, Aug 11, 2006
    #3
  4. Rodney R. Fournier [MVP], Aug 11, 2006
    #4
  5. Stefan

    Stefan Guest

    I allready see the LUN (with quorum data)... the question is, how to use the
    quorum disk to re-create my cluster on the new server.

    Stefan.
     
    Stefan, Aug 11, 2006
    #5
  6. Rodney R. Fournier [MVP], Aug 11, 2006
    #6
  7. Stefan

    Stefan Guest

    I tried the recovery tool, but it seems that the cluster(name) needs to be
    online. My cluster is offline and needs to be re-created. Or did I miss an
    option in this tool?
     
    Stefan, Aug 11, 2006
    #7
  8. I see what you are trying to do....cluster recovery is not the best path to
    take here.

    Please confirm for me that you have not yet executed this plan.

    Also, tell me if the current cluster and the planned cluster have
    simultaneous access to both the old and new storage.

    Typically, if you are planning on upgrading both server and storage hardware
    it is best to have the old and new storage simultaneously accessible because
    what we do is (initially you will want to map the new LUNS to only one node
    of the cluster until after step #6):

    1. Take all resources except the cluster name and physical disk resources
    offline.

    2. Add new physical disk resources into the cluster in the groups where the
    old disks they will replace are located.

    3. Bring them online and migrate the data to the new disks (Not the
    quorum...use the Move Quorum functioanlity for that and make it the last
    step).

    4. After verifying the data, take the old disks offline and delete them
    from the cluster.

    5. In Disk Management, change the drive letters for the old disks.
    Preferably just assign no drive letter.

    6. Change the drive letters on the new drives to the old drive letters so
    we do not upset the applications.

    7. Bring the applications online and test failover (after mapping the new
    LUNs to the other nodes in the cluster.)

    8. Move the quorum if needed as mentioned in #3.

    9.. Now for the server hardware, it is just a matter of evicting the nodes
    one at a time, rebuilding and re-joining them to the cluster and testing
    failover multiple times.

    10. Re-locate hardware to new site.

    Planning is critical.
    --
    Chuck Timon, Jr.
    Microsoft Corporation
    Longhorn Readiness Team
    This posting is provided "AS IS" with no
    warranties, and confers no rights.
     
    Chuck Timon [Microsoft], Aug 12, 2006
    #8
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