Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Have a couple of servers I'd like to setup as Hyper-V Servers, with a couple of Windows 2008 Standard VMs. On the host, we have a few hardware devices we'd like to be accessible to the guest; I'm not sure if these are supported via a raw "pass-thru" on Hyper-V (which I don't have a lot of experience with) if the same drivers are installed on the guest.

Hardware in question is a Brooktrout fax card, a SCSI adapter for the tape drive, and a 9-pin serial connected to one of the core firewalls for management.

share|improve this question
up vote 1 down vote accepted

Serial Port: Yes, but you have to set up the COM as a Named Pipe on the host machine, so I don't know how this will affect your software.

Tape drives have been discussed here and the answer is an emphatical "no". You best bet is to install the tape drive into normal server (if your host machine is the bare-metal Hyper-V this won't work, it has to be the normal Windows install, and then have the Hyper-V role added) and expose it via iSCSI. There's plenty of software around that can do this. Starwind is one of them.

As for the fax card, I haven't seen any sort of PCI pass-through in Hyper-V. VMWare ESXi is way ahead of Microsoft Hyper-V on this front, however to use PCI Passthrough in VMWare you need to have fully supported hardware which may pose an issue if you've already purchased the servers, and there's no way to know for sure that your software will work the way you expect without trying it.

share|improve this answer
Here you go man. Remember me when you're into 6 digits and I'm going for my 10k :) – gravyface May 7 '10 at 0:39
Haha, I still have 600 to go and my avaliable time for SF is dropping rapidly due to work and life changes. I may never reach the holy grail... – Mark Henderson May 7 '10 at 1:23

As far as I know, Hyper-V (including R2) only support disk Pass-through.

About serial port, you can use serial-over-IP solutions, like this:

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.