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Copper

Hyper-V Live Migration for Meltdown & Spectre Update

Hi guys.

I have 3 PowerEdge C6320 Servers hosting multiple virtual machines running in Hyper-V in each one of them. I want to update the BIOS/Firmware for these physical servers for Meltdown & Spectre patches without any downtime on the VMs. 

Let's say that Host A has 3 VMs and Host B has 2 VMs running on Hyper-V. I want to live migrate all 3 VMs on Host A to Host B first before the update to ensure there isn't any downtime.

Is it possible to live migrate back the 3 VMs from the unpatched Host B to the patched Host A?

Is there any concerns that I should know about this process?

Thanks!

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Moderator
Moderator

Re: Hyper-V Live Migration for Meltdown & Spectre Update

Hi,

It may not work. https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/CVE-2017-5715-and-hyper-v-vms

Thanks,
Josh Craig
Dell EMC Enterprise Support Services
Get support on Twitter @DellCaresPRO
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Arep
Copper

Re: Hyper-V Live Migration for Meltdown & Spectre Update

Hi Josh,

Thank you for the info. Is there any possible way to update the hosts without any downtime to the guests?

Thanks!

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