Import VMs from vCenter to vCloud Director using PowerCLI

Posted on 18 Apr 2013

vCloud Director allows you to import virtual machines from the underlying vCenter Server which is perfect should you build a virtual machine in vCenter first, or perhaps have issues uploading VMs to vCloud Director such as when using the import OVF to catalog option.

Tagged with: vCD vSphere PowerCLI

VMware Virtual Machine Snapshots Hidden

Posted on 02 Apr 2013

I thought I would just post a quick article to say I have written a guide on how to deal with hidden VMware snapshots.  It’s quite technical and hopefully should allow you to be able to resolve any hidden snapshot issues you may come across.

When I talk about hidden snapshots I am talking about when the .vmx file of the virtual machine is referencing a snapshot disk, that is one that has a <VM_Name>-00001.vmdk disk associated with it but as far as the snapshot manager is concerned there is no snapshots present as show below.

Tagged with: vSphere

VMware Virtual Machine Memory Guide

Posted on 06 Feb 2013

Memory Virtualisation Basics

When an operating system is installed directly onto the physical hardware in a non-virtualised environment, the operating system has direct access to the memory installed in the system and simple memory requests, or pages always have a 1:1 mapping to the physical RAM, meaning that if 4GB of RAM is installed, and the operating system supports that much memory then the full 4GB is available to the operating system as soon as it is requested.  Most operating systems will support the full 4GB, especially if they are 64-bit operating systems.

Tagged with: vSphere