Would be curious to know how it compares in power consumption and heat output; licensing cost of z/VM; is PR/SM (allows you to create and configure LPARs) available? licensing cost?
I worked on multiple LinuxOne systems. You can run z/vm and pr/sm. it will also run kvm if you like.
Power consumption (of our box z13 based)is 3kwh regardless of configuration (give or take) but also consider you need a lot less san switches and networking switches to achieve the same goal as a large rack of individual servers