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DyJohnnY
Enthusiast
Enthusiast

VMware HA - cluster sizing - when not all VMs should be protected by HA

Hello,

I have a request to build a cluster in the following situation:

1. 14 of the VMs in the cluster will have their own availability mechanism (e.g. Oracle RAC, MSCS)

2. 6 of the VMs will require me to provide them with VMware HA functionality.

I have found how to to disable HA for specific VMs in the cluster (go to cluster settings and disable VM restart).

However now I am confrunted with a dillema, I have a fixed amount of hardware to use, which when used in conjuction with HA does not provide all resources that my entire VM Pool (20VMs) needs. So I cannot protect all 20 VMs with HA, with current hardware but on the other hand I don't want to protect all of them, just 6.

My question is this:

Does slot calculation in VMware HA take into account the fact that I disabled HA responses for some of the VMs? (I'm interested specifically if the number of "used slots" decreases when I unprotect the VM)

Thanks for the feedback, I hope i explained it right.

Ionut

IonutN
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