topic Re: EVC with different type of CPU in VMware vSphere™ Discussions

EVC with different type of CPU

baber — Wed, 30 Oct 2019 19:14:53 GMT

I have 2 type of server with different type of cpu as below :

HP DL380P g8 (Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz)

HP DL380P G9 Intel(R) Xeon(R) CPU E5-2698 v3 @ 2.30GHz

I want to ensure is that possible reside these different type of server in one cluster with EVC mode ? if YES, which type of EVC mode had to select ?

Re: EVC with different type of CPU

daphnissov — Wed, 30 Oct 2019 19:17:23 GMT

Did you know you can look this up yourself? ==> VMware Compatibility Guide - System Search

Re: EVC with different type of CPU

baber — Wed, 30 Oct 2019 19:34:07 GMT

Before that I read that dcument but as you can see in attach pic nothing show these two type of server can reside in a cluster or not

Re: EVC with different type of CPU

daphnissov — Wed, 30 Oct 2019 19:34:54 GMT

Because you're looking in the wrong place. You want the CPU compatibility list, not the server list.

Re: EVC with different type of CPU

baber — Wed, 30 Oct 2019 19:45:05 GMT

would you please upload a pic from your result here because everything I do search could not get useful answer

Re: EVC with different type of CPU

daphnissov — Wed, 30 Oct 2019 19:50:17 GMT

Re: EVC with different type of CPU

Tibmeister — Wed, 30 Oct 2019 20:32:12 GMT

If you're running vSphere 6.7, when you enable EVC mode (or just edit) in the GUI it will show you if hosts are or are not compatible with the EVC mode selected. Start at the highest level (Skylake) and work you're way down until the Compatibility section shows there's no host that have issues. I am used to looking at the Compatibility Matrix, but it can be confusing and overwhelming to someone not used to it so I'm glad that they added this check into the GUI.

Re: EVC with different type of CPU

IRIX201110141 — Wed, 30 Oct 2019 21:54:20 GMT

You have to select "Sandybridge" as EVC Mode for your cluster.

The list within the GUI is sortet by the historical release date of the CPU which makes is easy if you have some Intel CPU knowledge. There was a big jump with the Nehalem 55xx CPUs followed by the Westmare which named 56xx. Than it starts with the E5- v0, v1, v2, v3, v4.

Enabling EVC during runtime is a easy job when you have Intel type CPUs as long as the newer CPU have the same or more CPU features. This isnt the case when you have partiell mitigate against Spectre,Meltdown and Co.

Regards,

Joerg