Having Doubt in Assigning CPU socket and cores.

[Anjani_Kumar]

Hi All,

Recently i seen a windows server 2008 R2 machine in my environment with having 4 socket with 4 core each (Means 16 Cpu).

I can also see them in device manager of windows host. Now i am confused as the server 2008 R2 Std. version support till 4 CPU only.

Are they going to work with that. or There will be change in physical or Virtual cpu architecutre and supported no of CPU from windows.

If i missed anything to supply here. please let me know.

Attaching screenshot.

Thanks

Anjani Kumar

[corvettefisher · Accepted solution]

Windows Server 2008 R2 can have upto 4 CPU sockets, each of those sockets can have multiple cores on them

http://msdn.microsoft.com/en-us/library/ms143760%28v=sql.105%29.aspx

Windows Server - Sockets, Logical Processors, Symmetric Multi Threading - Matthijs's blog - Site Ho...

[rcporto]

The "4 processors" values you see on the picture is the number of sockets and the Standard version (without Hyper-V enabled) supports 256 logical processors.

Windows Server 2008 R2 x64 with Hyper-V Enabled

• Windows Server 2008 Standard Edition supports up to 4 sockets and up to 64 logical processors
• Windows Server 2008 Enterprise Edition support up to of 8 sockets and up to 64 logical processors
• Windows Server 2008 Datacenter Edition supports up to 64 sockets and up to 64 logical processors

Windows Server 2008 R2 x64 without Hyper-V Enabled

• Windows Server 2008 Standard Edition supports up to 4 sockets and up to 256 logical processors
• Windows Server 2008 Enterprise Edition support up to of 8 sockets and up to 256 logical processors
• Windows Server 2008 Datacenter Edition supports up to 64 sockets and up to 256 logical processors

Windows Server 2008 R2 x86

• There is no such product. Windows Server 2008 R2 is x64 only.

[Anjani_Kumar]

Okay. i studied this . Just want to recheck if this configuration which i attached in screenshot is going to work. ??

Means 4 Cores x 4 socket.= 16 cpu. if yes. Than why its showing 4 processor in Brackets in windows properties page. (What i am assuming its simply highlighting that this vm has more cpu than it can be supported.) 

Thanks.

[corvettefisher]

Because this is what is most likely assigned at the virtual layer; if you Right click>Edit settings on the VM and go to the CPU's you will most likely see 4 virtual sockets, and 4 cores per socket.

So long as you do not go above 4 sockets the configuration should be supported.

[rcporto]

The value showing in brackets are the number of sockets (not the logical processors), because of this you see only 4.

If you have some doubt if VM is using all logical processors, just open the Task Manager and check the Performance tab, and you will see 16 processors.