VMware vSphere

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  • 1.  Best Practices Reconfigure VMotion from 2 to 4 Hosts

    Posted Jun 24, 2020 03:56 PM

    Hello Community,

    Due to updated licensing we're moving from two separate vCenters with two hosts each to one vCenter with four hosts.  Under the old configuration we had VMotion configured point to point using a /30 between the two servers.

    In the new configuration I'd like to set up VMotion so that each host can VMotion to each of the other hosts.  Which configuration is best or is there a third option

    1.  Create one /29 network to allow all four hosts to connect to each other

    2.  Create three separate VMotion connections on each host.  NOTE:   This method is limited by the number of connections we have available, but I could trunk them all down one large pipe.

    NOTE:  Distributed Switches are not in use.



  • 2.  RE: Best Practices Reconfigure VMotion from 2 to 4 Hosts

    Posted Jun 24, 2020 05:44 PM

    I'm not sure that I understand the second option.

    Anyway, I'd go with option 1, using a switch.

    André



  • 3.  RE: Best Practices Reconfigure VMotion from 2 to 4 Hosts

    Posted Jun 24, 2020 07:38 PM

    The second option would be to create (if it's possible) three separate VMotion connections, one to each other server.  If this is not an option then this option goes out the window.

    My reasoning for this option is because the hosts have 10GB nics, but I don't have a 10GB switch. 



  • 4.  RE: Best Practices Reconfigure VMotion from 2 to 4 Hosts

    Posted Jun 25, 2020 05:36 AM

    I would buy a 10 GB switch. And personally I would always create a slightly larger subnet then I need at this moment... So in your case create a /28 subnet. This will give you enough available IP addresses.