It is possible to run Windows Server 2012 Hyper-V inside a VMware ESXi 5.1, free edition. Using a “nested” hypervisor is not straight forward. Still it is quite simple.
My ESXi v5 runs on a Mini-ITX Z68 motherboard with Intel Core i5 2500T (Quad core). I choose this because I wanted to have a silent (fanless) and low consumption box. The box runs quite well. The only thing that I regret is that I don’t have access to any sensors from the vSphere client. I was looking at the SuperMicro motherboards as they seem to provide IPMI.
The SuperMicro H8SCM-F looked really really nice. Micro ATX Form, integrated IPMI and KVM, support for up to 128GB of RAM and AMD Opteron 4000 Series ; the Opteron 4256 EE @2.5 GHz have 8 cores and a TDP of 35W! So I started to wonder how whould an Opteron 4256 EE (8 cores, 2,5GHz, 35W TDP) performs vs my Core i5 2500T (4 cores, 2,3GHz, 45W TDP). According to SPECfp2006 Rate Results, the AMD Opteron 4256 EE would have a baseline of 67 and the Intel Core i5-2500T would have a baseline of 87. A better comparison should be done with Opteron 3250 HE (4 cores, 2,5GHz, 45W TDP) which is ranked 52.
Then the big question raised: is it better to choose AMD or Intel for the virtual infrastructure. I recall reading than AMD processor were perfect for virtualization because they have more cores and use less power. But this was the marketing chat and was published a year ago. What I’m going to do here is try to understand how to compare processor in the case of hypervisor.
VirtualBox is a virtualization software that allows running several OSes on a single host machine. It was first a free VMware Workstation-like tools but has grown quite a bit now. You can now run virtual machines headless, like you do with Xen or KVM.
Here’s a little tour on setting up an hypervisor using VirtualBox on FreeBSD 9.
BTW: Why FreeBSD? Because it features ZFS filesystem version 5 and ZFS pool version 28.
One of the missing feature in the free version of ESXi 5 is the ability to move Virtual Machines between Datastores (Storage vMotion) and/or ESXi servers (vMotion). There is, however, a way to move a Virtual Machine from one hypervisor to another or to use another storage space ; at the cost of VM outage duration.
Here’s a brief review of what can be done and how regarding Virtual Machine instances and storage migration.
Continue reading “Moving VM on ESXi without VMotion or Storage VMotion”