What is a difference between 'Logical processors' and 'logical processors for each host?

Hi all!

In the official document VMware "vsphere-51-configuration-maxima" or "vsphere-55-configuration - maximums.pdf" in the section "ESXi host maximum rates------Maximums calculation" exists in the elements:

"Maximum CPU------logical CPU for each host ' (vSphere 5.1: 160;)   vSphere 5.5: 320)

and

"Machine virtual maximums------virtual CPU by host ' (vSphere 5.1: 2048;)    vSphere 5.5: 4096)

Question: what is the difference between the two?

And a more complex thing to maximum rates:

Virtual machines per host: 512

Number of hosts per cluster: 32

Therefore, the cluster may be Virtual Machines (maximum): 521 * 32 = 16384

But in the document, we have only 4000 VMs in maximum.

Why?

Thank you

Ramirez,

I understand your question as difference between 1. logic virtual CPU vs / by the hosts and 2. cluster/host Max County VM.

Consider the case below;

2 servers ESXi - 20 mV

ESXi taken 1-4, 2 cores / socket

ESXi 2-8 Sockets, 2 cores / socket

Now here number of CPU logic-(4 x 2) + (8 x 2) = 24

20 virtual machines - 2 jacks, 2 core / socket

Virtual CPU count - 20 x (2 * 2) = 80

Hope your first confusion is clear now.

And a more complex thing to maximum rates:

Virtual machines per host: 512

Number of hosts per cluster: 32

Therefore, the cluster may be Virtual Machines (maximum): 521 * 32 = 16384

But in the document, we have only 4000 VMs in maximum.

Why?

This means that even if you have 32 Guest and each host can accommodate 512 VMs each the maximum number of virtual machines per cluster may not exceed 4000. And it does not mean that you can have a maximum of VMS (512 * 32).

~ dGeorgey

Tags: VMware

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