Today I spent 4 hours listening to Microsoft technicians talk about Hyper-V, Virtual Machine Manager (VMM) and System Center. Here are some of the key notes I took about Hyper-V:
- Licensing for Microsoft Server 2008 includes (1P + 1V) – This mean you can have 1 physical Microsoft Server 2008 running Hyper-V and 1 virtual Microsoft Server 2008 running on the same hardware.
- Licensing for Microsoft Server 2008 Enterprise includes (1P + 4V) – This mean you can have 1 physical Microsoft 2008 running Hyper-V and 4 virtual Microsoft Server 2008 running on the same hardware.
- Licensing for Microsoft Server 2008 Data Center includes (1P + unlimited V) – This means you can have 1 physical Microsoft 2008 running Hyper-V and unlimited virtual Microsoft Server 2008 running on the same hardware. The virtual server limit will be when memory and CPU resources run out.
- You do not need to upgrade Microsoft 2003 cals to 2008 cals anymore to run 2003 server on Hyper-V.
- Hyper-V does not allow memory to be over committed (over-subscribed in VMware talk).
- VHD file is like a VMDK and AVHD is the snapshot.
- Hyper-V snapshot location is configurable.
- RTM is similar to vMotion but crashed when it was demoed.
- Microsoft Windows Server 2008 R2 will have “Live state migration” which will work more like vMotion and hopefully won’t crash.
- Letting Windows manage the virtual servers SWAP file is the best practice in Hyper-V.
- A free version of Microsoft Hyper-V Server is available for download. It does not include a Windows GUI interface and does not allow clustering. (Download)
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