VMware on John Billekens | Notes from the field

Nested Hypervisor on vSphere

Sun, 08 Jun 2014 08:43:14 +0000

VM Hardware version 9 or Higher VM Advanced settings add:

vhv.enable = “true”
hypervisor.cpuid.v0 = “FALSE” (Hyper-V)

And in vSphere Webclient enable “Expose hardware assisted virtualization to the guest OS” under CPU.

ESXi from USB

Mon, 11 Nov 2013 20:37:24 +0000

A USB drive can be set up to boot into any LInux distribution using UNetBootin. Fortunately, ESXi is a Linux distribution. The steps are surprisingly easy.

Download ESXi from VMWare
Download UNetbootin from Sourceforge
Plug your USB drive into your computer.
Double click on the downloaded exe file. UNetbootin is a stand alone executable. No installation is needed.
Select the second radio button, Diskimage. Click the button with the ellipses on it, browse to and select the ESXi iso you just downloaded.
Once UNetbootin is finished, remove your USB drive from your current system. Plug it into the computer you want to install ESXi onto, restart the system and you are off and running.

Everything will work just as if you were installing from any other media.

vSphere 5.1 static MAC

Sun, 24 Feb 2013 11:47:18 +0000

Failed to start VM
#

After upgrading an ESX cluster from vSphere 5.0 to vSphere 5.1 a VM failed to reboot.. Instead, an error message was issued: Failed to start the virtual machine. Module DevicePowerOn power on failed. Could not set up “macAddress” for ethernet0. Invalid MAC address specified. 00:0C:29:A0:B0:1D is not an allowed static Ethernet address. It conflicts with VMware reserved MACs.

Oversubscription Pros & Cons + how far it should go before it becomes dangerous

Wed, 28 Nov 2012 07:56:06 +0000

Best Practices for Oversubscription of CPU, Memory and Storage in vSphere Virtual Environments Pros and cons of oversubscription and how far it should be taken before it becomes dangerous Scott D. Lowe http://www.vkernel.com/files/docs/white-papers/vsphere-oversubscription-best-practices.pdf vSphere Oversubscription Best Practices