Virtualization Pro

Apr 21 2008   4:25PM GMT

VirtualCenter virtual machine removal best practices

Rick Vanover Rick Vanover Profile: Rick Vanover

Creating virtual machines (VMs) is quite easy, but how you remove them can make a big difference in storage space.

When removing a virtual machine, one popular method is to move the virtual machine to a resource pool with no assigned memory or processor resources. There are some concerns and strategies for doing this, however there are no virtual appliances or fully automated solutions within the VMware Infrastructure Client to help you with this process.

While moving the VM to a different resource pool is a convenient way to roll the system back online if necessary, the VM would still have its storage requirements. From an ongoing management perspective, storage is the biggest concern. I have found that using the local storage for the tentative decommission stage is acceptable in lieu of using the shared storage configurations across the other ESX hosts.

Once the virtual machines are in the resource pool with no assigned resources, you can then remove them on an interval that suits the ‘just in case’ situations. This can be a daily, weekly or monthly timeframe — whatever suits your environment and business needs. Of course, if the storage situation inhibits keeping these systems for long amounts of time, then the interval may be dynamic.

What are you doing from a matter of practice standpoint for the deletion of your virtual machines? Share your comments and ideas below.

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