locked
Split existing cluster RRS feed

  • Question

  • We currently have a 4 node 2008 cluster, 2 nodes are running SQL 2005, 2 nodes Exchange 2007, and all 4 nodes share File & Print. It was built this way so we got best load balancing and reduced hardware while migrating and getting rid of old tin over the last few months.

    We now want to split the Exchange or SQL servers out of the existing cluster (whichever is least work to do) so we are left with 2 x 2 node clusters, 1 for SQL and 1 for Exchange. Not worried about the file and print as we can rebuild that in a few mins.

    Anyone know is this possible to do without having to reload Exchange or SQL. 
    Sunday, November 9, 2008 1:10 AM

Answers

  • Hi,

    what about this way:

    i.) erase one of the existing Xch2k7 cluster nodes (during this periode you are not high available)
    ii.) create a new cluster with one node
    iii.) move mailboxes and public folders
    iv.) erase second (old) exchange node
    v.) install second (new) exchange node

    During that procedure you are not high available but you are always online.

    Bye.
    ThorstenWujek
    • Marked as answer by Symon Perriman Tuesday, December 30, 2008 1:32 AM
    Monday, November 10, 2008 7:33 AM

All replies

  • Hi!

    You will have to create a new cluster and afterward switch over the services you need. One possibility is as follows:

    0) BACK UP ALL STUFF!!! :-)
    1) Shut down the machines for SQL or Exchange (depending on their importance for you)
    2) remove the two nodes from the existing cluster (you will therefor have to remove the service running on only these two nodes)
    3) reconfigure the network and storage settings of the two nodes (to prevent them conflicting with the existing cluster)
    4) create a new cluster with the two nodes and create the new service on these two nodes.

    Overall this should not be that much work because all the prerequisites on the two nodes are already installed.

    Andreas
    • Edited by ND82 Sunday, November 9, 2008 7:46 AM
    Sunday, November 9, 2008 7:44 AM
  • Yep was worried that would be the way.  Trouble with either SQL or Exchange is they are not easy to get setup as just redoing the services. Guess it will be easier plan b, build new cluster, load Exchange in new cluster, migrate server, evict Exchange from old cluster.

    Luckily I have enough spare hardware of exact same spec to be able to do that.

    Thanks for the help.
    Sunday, November 9, 2008 11:43 AM
  • Hi,

    what about this way:

    i.) erase one of the existing Xch2k7 cluster nodes (during this periode you are not high available)
    ii.) create a new cluster with one node
    iii.) move mailboxes and public folders
    iv.) erase second (old) exchange node
    v.) install second (new) exchange node

    During that procedure you are not high available but you are always online.

    Bye.
    ThorstenWujek
    • Marked as answer by Symon Perriman Tuesday, December 30, 2008 1:32 AM
    Monday, November 10, 2008 7:33 AM