See if USB drive is connected

hi there,

I'm trying to get a usb disk connected to a VM on an ESXi 5.0 server in a remote office.

I'm told by staff in the office that the drive is plugged into the ESXi server, yet when I try to add it to a VM it says no devices available.

Is there a way I can check that the ESXi host itself is detecting the drive? A shell command perhaps?

Thanks for any assistance.

-Al