The Virtualization Room

Oct 23 2008   11:01AM GMT

The first 45 days of using the virtual machine expiration date

Rick Vanover Rick Vanover Profile: Rick Vanover

In prior posts, I mentioned that determining how the expiration of a virtual machine (VM) will be managed and implemented is just as important as deciding to have an expiration date. I have been using Emobtics V-Scout since its release in early September of this year, and it is one of the quickest and easiest ways to get started with a VM’s expiration date for free.

Depending on the technology climate, the concept of a VM’s expiration date may or may not be received well by internal IT teams such as developers. I have taken the stance that test-and-development systems should have an expiration date. The expiration date can be extended, of course, but it is more important that it is a defined process. Certain VMs will not have an expiration date, such as a QA environment for a live system. This can be managed in the same fashion as well.

In my experience thus far, I’ve found that the process makes the requesting development teams a little more aware of the system footprint. There has been little resistance to the concept of an expiration date, and it is well communicated from the virtualization team to the requesting groups. Using V-Scout, the procedural steps are to define the owner of the VM as well as the expiration date. When a VM is provided to the requesting group, I generate the V-Scout inventory report. The inventory report is then saved and sent to the requesting group as a way to clearly identify the definition of the VM in the virtual environment. The V-Scout inventory report comes with information about the operating system version, amount of memory, owner information and email address, expiration date as well as other information. With this information, the report adds an element of service credibility to the virtualization administrator. The figure below is a sample report from V-Scout:

Figure 1

Since I have been using the expiration date, the requesters of virtual machines have been proactive in letting me know that the VM needs to be extended in duration. I don’t mind accommodating that request, as I’m trying to avoid a long list of systems that in four years nobody remembers anything about. This proactive request for an extension is very welcome and stems from a few other small practice issues that accompany the VM expiration date. The most noticeable of this is an automatically scheduled email that reminds the requester that the VM is due to expire in one week. The other part of that is a scheduled task in VMware VirtualCenter to change the power state of the VM due to expire. Lastly, there is another scheduled email that reminds me to remove the VM from the virtual environment storage and Windows Active Directory.

These small practice points with the use of a tool that fits your needs allows for an expiration date to be implemented without using more expensive lifecycle or lab management products. V-Scout is a free download from the Embotics website.

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