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  1. #1
    Join Date
    Sep 2010
    Location
    Albury, New South Wales, Australia, Earth
    Posts
    40

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    Quote Originally Posted by techtou
    Same question here.
    When performing failover all our virtual servers end up restarting.
    Hosts running them report that iscsi connection and storage was dropped and regained within a second - enough for all virtual machines running from the SANs crash and reboot.
    Is there a way to tune this so the failover is seamless and storage is available 100% of the time during failover/failback?

    Thanks.
    Hmm I don't get this when I failover, ESXi 4.1 MPIO (4 nics), I can failover/back without any of the VM's rebooting or LUN timeouts etc. It works very well. I might get 1 dropped PATH on ESXi but by the time it poll's and recovers failover is completed, and everything hum's along as it was.

    What is your configuration?

  2. #2
    Join Date
    Oct 2010
    Location
    GA
    Posts
    935

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    I was wondering the same thing AdStar.

    By design, failover is near instantly. Dropping hosts on every failover is certainly odd.
    Some things do come to mind though;
    Is everything the same with regards to the targets on each node: frame settings, thread queues, etc. What about frame sizes on the NICs?

    And as To-m mentioned, active/active is coming, so another failover option will be available.
    But dont give up on node to node failover.... seems something just isnt right in your configuration someplace.

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