Thank you for posting this. I only had one server that was capable of DirectPath that I could test with right now. It has a Cisco USB sound card (for external audio for a CUCM). The USB ports persisted through a reboot (5.1 + the latest patch) and I was able to add a PCI device and saw a sound card get added to the server. I'll be doing more extensive testing when I can get downtime on the servers to confirm USB hard drives work but the fact that I see this sound card might be confirmation enough.
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