Allow/Support com port redirect from physical host to virtual machine
Please finally allow physical com port redirection to a virtual machine. I know this would limit high availability of the virtual machine but sadly some applications/hardware still require com port communications.
COM ports have been around since the dawn of the PC (PC-AT anyone?) and were never designed to be virtualized. If we mapped a physical serial port to a VM, access to the device would fail when the virtual machine Live Migrated or failed over in the case of unplanned downtime. The solution is to use a Serial over IP solution. There are a number of options on the market which provide transparent access to serial devices over TCP/IP and can cost as little as $45 per device.
With these solutions you can achieve both COM port access within a VM without sacrificing VM Mobility.