PowerVM

Power Virtualization

Learn about the virtualization technologies designed specifically for IBM Power including #PowerVM, #PowerVC, #VM Recovery Manager#HCM/CMC, and more.


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  • 1.  Downstream effects of deleting and recreating my SEA Network?

    Posted Thu August 10, 2023 11:48 AM

    PowerVC 2.1.0, running on a Power9.

    Environment is created with one SEA network (each VIO has a quad-port network adapter with one port used).

    Users want to test using SR-IOV also want to keep SEA.  Looks to me that my steps to implement are:

    • Remove SEA and remove network adapters from the VIOS
    •  Configure adapters in SR-IOV shared mode
    • Assign one new virtual adapter to each VIOS, then recreate SEA with the same VLAN settings as before

    Will I have to delete/recreate my existing SEA network definition in PowerVC or will it recognize that it's still there?  If I have to delete the network definition, what else will have to delete downstream?  Any deployed VMs?

    (No production data in this environment.  Strictly testing/tool development.)



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    K G
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    #PowerVC


  • 2.  RE: Downstream effects of deleting and recreating my SEA Network?

    Posted Fri August 11, 2023 03:56 AM

    Hello KG

    in my experience you can rebuild the SEA without problems (if the same VLAN is defined again). 

    Nothing happened with the existing VM's in our environment. 

    We use the PowerVC "only" to the deployment of VM's. Not for automatic load balancing or so. 

    I would still the PowerVC durchstartet or an "Environment check" perform, after the change of the SEA. 

    Best regards,

    Andre 



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    Andre Lutz
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  • 3.  RE: Downstream effects of deleting and recreating my SEA Network?

    Posted Sun August 13, 2023 11:28 AM

    Did you have to delete/recreate the PowerVC network definition for the SEA or did nothing have to change within PowerVC itself?



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    K G
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  • 4.  RE: Downstream effects of deleting and recreating my SEA Network?

    Posted Mon August 14, 2023 09:46 AM

    Hello KG ,

    nothing changes in the PowerVC.

    You should only restart the PowerVC server and then it should discovern the SEA again. 

    Best Regards,

    Andre



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    Andre Lutz
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