Increasing machine version in VM after major PVE upgrade

W

Whatever

Renowned Member
Nov 19, 2012
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Just wondering, is there any reason to increase VM machine version to the higest one after major PVE upgrade?
In terms of VM stability/perfomance

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Thanks in advance,
 
the version had been fixed (around 5.1, previously it was latest), because some internal change in qemu with pci bridges, and windows was loosing the nic ip configuration.

So, yes, you can upgrade version, just be carefull of ip configuration , it's possible than you need to reapply it.

(Not sure about performance/stability increase)
 
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spirit said:
the version had been fixed (around 5.1, previously it was latest), because some internal change in qemu with pci bridges, and windows was loosing the nic ip configuration.

So, yes, you can upgrade version, just be carefull of ip configuration , it's possible than you need to reapply it.

(Not sure about performance/stability increase)
Click to expand...

Thanks for the reply. Yeap, I'm fully aware about the issue with IP setting changes (mainly in Windows) - faced it several times.
The question is - is there any significant reason to do so and keep VM "up to date" ?

For example: may be there are relations between latest Virtio drivers (for all virtio devices as well as baloon) and VM machine version (hardware emulation inside QEMU/KVM)?
 
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