Configure VMs to prevent host from sleeping

Configure VMs to prevent host from sleeping

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When VMs are performing a long-running activity, the Mac will still go to sleep when nothing is happening on the host. This obviously prevents progress of any activity within the VM. It can also crash VM guest OSes because the host CPU is being yanked away.

I would like to have a per-VM or global Fusion configuration option to prevent the Mac from sleeping as long as a VM is running. This enables activities in VMs to continue without activity on the host.

2 Comments
ColoradoMarmot
Champion
Champion

Why not just disable sleep on the host when on AC power?  With modern computers, there's so little power draw when idle, that sleeping isn't really necessary (apple's gotten massively aggressive with sleeping - and is screws up a lot of things).

amalthea
Contributor
Contributor

Interesting idea, but an idling Mac Pro is safely in the double digits in terms of power draw. That’s not something I am willing to invest 24/7.