VCA mode disabled / vmotion work?

We have 2 groups of ESXi at our facility for vSphere, vSphere is version build 5.5U1, currently most recent available.

Group 1 has Intel Xeon E7540 UC.

Group 2 is brand new and uses recently published processors Intel Xeon E7-4860 v2.

VCA is currently disabled on the two groups.

Athe's systems are listed in the VMware compatibility guide for our latest version of vSphere.

I expect this Setup to be able to live vMotion of virtual machines from the old to the new cluster without the use of CVS on either, but I assumed that the migration back to group 1 would require cluster 2 to affect the level of reference Intel EVC appropriate (Nehalem in this case).

It turns out that I am able to migrate VM direct in both directions with no apparent problems (so far), with EVC mode disabled on both groups.

Is an expected behavior or if ESXi/vCenter is somehow misreading? CPU compatibility (perhaps because the E7-4860v2 are a very recent model) or some other issue that could lead to problems with these migrations?

I expect this Setup to be able to live vMotion of virtual machines from the old to the new cluster without the use of CVS on either, but I assumed that the migration back to group 1 would require cluster 2 to affect the level of reference Intel EVC appropriate (Nehalem in this case).

It turns out that I am able to migrate VM direct in both directions with no apparent problems (so far), with EVC mode disabled on both groups.

Is an expected behavior or if ESXi/vCenter is somehow misreading? CPU compatibility (perhaps because the E7-4860v2 are a very recent model) or some other issue that could lead to problems with these migrations?

This is normal unless you have turned to bike the VM on the new hosts.

If a virtual machine has been powered - on on a former host and is migrated to the new cluster, it does not change the current features of the virtual machine CPU runlevel. He will continue to work with the old CPU features on the new host and is therefore able to migrate the old new host without problems, or additional AIDS such as CVS.

However, if stop you now migrated virtual machine and power it on again on new hosts, the virtual material will apply the new host CPU capabilities (or the level of EVC of cluster, but you do not apply any) and you will not be able to migrate the computer virtual return to the armies of the former cluster.

Tags: VMware

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