Hyper V Guest After Add second processor
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8 พฤษภาคม 2555 15:50
Dear
i did install Hyper V on single physical processor and install windows 2003 as guest Operation System and then add 4 Virtual processor to it,
after that i did add extra one physical processor but still i cant add more than 4 virtual processor on hyper V setting how i can use these second processor inside guest machine???
ตอบทั้งหมด
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8 พฤษภาคม 2555 15:58
Hi!
You don't allocate actual physical CPU to your virtual machines. The amount of virtual CPU's assigned to a VM represents, harshly speaking, more or less CPU time available. The actual workload is spread evenly across all physical CPU cores, managed solely by Hyper-V.
4 is the limit of vCPU's you can assign to a VM in the current Hyper-V edition. This amount has increased significally in the next version of Hyper-V included in the upcoming Windows Server 2012 OS.
Also, Microsoft officially supports up to a maximum of 2 virtual CPU's when running 2003 as guest. Although it's possible to assign 4, not all servers perform better. Some 2003 guest have been reported to actually have worse performance. It all depends on what type of server you're virtualizing.
- เสนอเป็นคำตอบโดย Steve JainMVP 8 พฤษภาคม 2555 20:54
- ทำเครื่องหมายเป็นคำตอบโดย Vincent HuModerator 11 พฤษภาคม 2555 4:49
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8 พฤษภาคม 2555 16:45ผู้ดูแล
More background (beyond Mike's answer):
http://social.technet.microsoft.com/wiki/contents/articles/hyper-v-concepts-vcpu.aspx
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.
Disclaimer: Attempting change is of your own free will.- เสนอเป็นคำตอบโดย Steve JainMVP 8 พฤษภาคม 2555 20:54
- ทำเครื่องหมายเป็นคำตอบโดย Vincent HuModerator 11 พฤษภาคม 2555 4:50
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9 พฤษภาคม 2555 1:58ผู้ดูแล
Hi,
As the above guys mentioned, you can’t expose a physical CPU to the virtual machine. If you assign 4 virtual processors to the virtual machine, it just like you assign it a processor with quad cores. And on current version of Hyper-V, the maximum number of CPU you can assign to a virtual machine is 4, you can’t beyond it.
By the way, in Hyper-V, the maximum supported processor on a Windows Server 2003 virtual machine is 2. For more information, you can refer to:
About Virtual Machines and Guest Operating Systems
http://technet.microsoft.com/en-us/library/cc794868(WS.10).aspx
Hyper-V: The number of virtual processors in use must not exceed the supported maximum
http://technet.microsoft.com/en-us/library/ee941167(WS.10).aspx
Hyper-V: The number of logical processors in use must not exceed the supported maximum
http://technet.microsoft.com/en-us/library/ee941148(WS.10).aspx
In addition, in Windows Server 2012, the maximum supported processors on a virtual machine is 64.
- ทำเครื่องหมายเป็นคำตอบโดย Vincent HuModerator 11 พฤษภาคม 2555 4:50
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