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VMWARE vsphere 5.5 HA do the hosts need to be similar hardware?

Posted on 2014-09-03
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VMWARE vsphere 5.5 HA do the hosts need to be similar hardware?

I have a client that wants to upgrade his servers. The question arose if their old server could function as a part of a new cluster? I have never setup a HA cluster in vmware and am unsure if it can be done if two hosts are completely different hardware/vendors.
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Question by:Wouter Makkinje
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by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 150 total points
ID: 40301112
No, the hosts do *NOT* need to be similar hardware.

In a VMware HA situation, VMs are restarted automatically on other available hosts. (they are not vMotioned e.g. Live Migrated!).

vMotion does not even need the same hardware, because you can enable EVC.
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asavener earned 350 total points
ID: 40301193
You can, but that does not mean that you should.

Vendors don't matter that much, but cluster members with unbalanced resources can definitely cause headaches.

Please read this article:  http://www.yellow-bricks.com/2014/02/19/dont-create-frankencluster-just-can/
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by:Wouter Makkinje
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Okay thank you for your answers.
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