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Possible Duplicate:
Can you help me with my software licensing question?

VMware ESX is free for upto 6 cores per CPU only

Vsphere Advanced version is required for 12 CPU cores

does Xenserver 5.5 free support greater than 6 cores per CPU/Socket?

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@John: not duplicate. your question sounds too generic – John-ZFS Apr 9 '11 at 18:30
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closed as exact duplicate by voretaq7♦ Feb 11 at 4:16

This question covers exactly the same ground as earlier questions on this topic; its answers may be merged with another identical question. See the FAQ for guidance on how to improve it.

2 Answers

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Yes.

From: http://support.citrix.com/servlet/KbServlet/download/22761-102-642263/XenServer_5_5_2_FAQ_Feb_2010.pdf

  • Does XenServer support dual-core or greater processors?

    Yes, XenServer supports multi-core processors.

  • How many processors can XenServer utilize?

    All XenServer Editions can utilize up to 32 cores total per system.

There isn't a limit on the number of cores per socket, just cores per host.

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oh great info. thank you – John-ZFS Jun 4 '10 at 6:05
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up vote 1 down vote

Just beware that there's a core-per-socket setting in XenServer, only available to paid versions of XenServer. Also, if you're using Windows vms, you've to make sure that there are cpu socket limits on Windows editions.

http://support.citrix.com/article/CTX126524

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