VMware KB: USB devices not supported in ESX host virtual machines
I am going through a virtual server migration at one of my data centers. The idea of moving away from older, non-standard hardware and going to a virtual platform is exciting for any IT nerd but there are some pitfalls along the way that you must keep into account. One of these pitfalls is around USB devices that your servers may use today. One of the applications that we use has an old USB Key that is used for license verification. Unfortunately, ESX/ESXi does not support adding USB devices to individual virtual machines. Apparently this support is in the works but you have to buy a USB over IP device in order to make it work properly. Who knew?
It goes to show that when you plan on doing a large scale conversion, you need to think about everything that the server does and to make sure it is supported on a virtual platform before you dig in. Support is probably a bad word since there are still many vendors out there that will not officially support their software on a virtual machine (Hello Landmark!). Of course their software will run just fine on a VM but when you call them, do not under any circumstances tell them it is running under a VM or they will stop talking to you immediately.

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