about Hyper-V

  • Thread starter Thread starter Synapse Syndrome
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Synapse Syndrome

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When using Hyper-V, is it right that the 'host' Windows 2008 OS has no more
direct access to the hardware as any of the 'guest' OSs, as they all go
through the HyperVisor?

In that case, there is not chance of using other PCIe cards, even with the
main 'host', as it were? Or does Hyper-V allow this someway?

I'll have to experiment, but some experienced input would be appreciated.

ss.
 
Re: about Hyper-V

There is some truth in that, but it is not the whole story.

If you link the NIC to a virtual network, the host machine does not have
direct access to the NIC any more. It accesses it through the virtual switch
just like an OS running in a child partition.

http://blogs.msdn.com/virtual_pc_guy/archive/2008/01/08/understanding-networking-with-hyper-v.aspx

If you do not create a virtual network linked to the NIC it will behave
as normal. Microsoft recommends that you have at least one NIC not linked to
a virtual switch if you want to access the server remotely (ie do not
connect remotely to a NIC linked to a virtual switch).

"Synapse Syndrome" <synapse@NOSPAMsyndrome.me.uk> wrote in message
news:uBCFz$duIHA.3780@TK2MSFTNGP03.phx.gbl...
> When using Hyper-V, is it right that the 'host' Windows 2008 OS has no
> more direct access to the hardware as any of the 'guest' OSs, as they all
> go through the HyperVisor?
>
> In that case, there is not chance of using other PCIe cards, even with the
> main 'host', as it were? Or does Hyper-V allow this someway?
>
> I'll have to experiment, but some experienced input would be appreciated.
>
> ss.
>
 
Re: about Hyper-V

"Bill Grant" <not.available@online> wrote in message
news:O%23AecThuIHA.6096@TK2MSFTNGP06.phx.gbl...
> There is some truth in that, but it is not the whole story.
>
> If you link the NIC to a virtual network, the host machine does not have
> direct access to the NIC any more. It accesses it through the virtual
> switch just like an OS running in a child partition.
>
> http://blogs.msdn.com/virtual_pc_guy/archive/2008/01/08/understanding-networking-with-hyper-v.aspx
>
> If you do not create a virtual network linked to the NIC it will behave
> as normal. Microsoft recommends that you have at least one NIC not linked
> to a virtual switch if you want to access the server remotely (ie do not
> connect remotely to a NIC linked to a virtual switch).

What about other types of PCI/PCIe card? Do they all go through the
HyperVisor, even on the host OS? Not networking or storage controller
cards. For example, can you use a TV capture card or CCTV security PCI card
on the host OS, while using Hyper-V?

ss.
 
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