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Thread: Active/Passive Cluster - Replace one node with new hardware

  1. #1
    Join Date
    Aug 2011
    Location
    Germany
    Posts
    22

    Default Active/Passive Cluster - Replace one node with new hardware

    Hi there,

    I have to replace one Node from an Active/Passive iSCSI Cluster with new hardware.
    At the moment I don't use MPIO, I use a rr-bond with two NICs.


    My idea:
    Shutdown all Virtual Machines (I use the Storage for VMware) and stop the Failover Cluster. Then stop the Storage Replication and shutdown the Node.
    After that I can change the iSCSI IP in VMware from the Virtual IP to the IP-address of the rr-bond and reconnect it.
    --> I made an standalone DSS with ISCSI out of the Active/Passive Cluster


    After that I will replace the server, install Open-E and configure the storage replication.
    As soon as the new storage is replicated (this will take some hours) I will stop the DSS, reconfigure the Active/Passive Cluster and start everything.



    After this step is done, I will change to MPIO configuration & upgrade to V7 but I think this is no big deal....



    What do you think, will this work?
    Any ideas or suggestions?


    Thanks.
    Manuel
    There are only 10 types of people in the world:
    Those who understand binary, and those who don't

  2. #2
    Join Date
    Aug 2010
    Posts
    404

    Default

    Try to read the following KB, it should be useful for you:

    http://kb.open-e.com/How-can-we-setu...gain_1053.html

  3. #3
    Join Date
    Aug 2011
    Location
    Germany
    Posts
    22

    Default

    Hi Al,

    I have to replace the Secondary/Passive Node, not the Primary/Active - so I guess it should be more easy as in the Knowledge Article.

    So it should work like this:

    1) Stop the Cluster, Shutdown SN
    2) Reinstall Open-E on the new Hardware, configure the same way as the ols SN (same IPs, ...)
    3) Replicate all Volumes from PN to the new SN
    4) Reconfigure iSCSI Failover

    I think the best is to do this in the afternoon, keep everything offline - wait until the replication is done and then reestablish the iSCSI failover.



    Bye Manuel
    There are only 10 types of people in the world:
    Those who understand binary, and those who don't

  4. #4

    Default

    Manuel,

    This is correct if you are replacing the hardware where you will need to replicate the data again and configure the replication once more so have a maintenance widow ready.
    All the best,

    Todd Maxwell


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