This tip may help you.
We use virtualization A LOT on our environments, as a symbol of trust to this concept we only have half of our web production servers as real machines, the other half is virtualized.
A common issue we found is that after installing SP2 on a Windows 2003 Ent/Standard installation or simply after installing certain security updates on Windows 2003 Ent/Standard R2 installations we lost sometimes the ethernet cards of the Virtual Machines (VM).
Well, the solution is quite simple, this problem usually only happens when you have not installed the client VMware tools, after installing them and restarting the Virtual machine you will be back in business.
Strange? yup. Drove me nuts a couple of times.
Saturday, October 03, 2009
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2 comments:
Frankly, that shows how VM paradigm is forced where it does not make sense. Most web servers can vitualize host themselves, using better server memory, I/O and CPU. And without requiring several licenses when using Windows. The onnly advantages may be maintenance and somewhat security (but if you have a compromised server wihtinh you VMs it wouldn't be safe at all...). For fault tolerance and availability, a cluster is a better choice.
It MAY make sense. If your webserver is not a heavy load one, you're able to put some more vms on the same machine - running DIFFERENT operating systems (specialized) for different tasks.
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