#HYPER V 2012 COM PORT NAMED PIPE SERIAL#
#HYPER V 2012 COM PORT NAMED PIPE DRIVER#
#HYPER V 2012 COM PORT NAMED PIPE WINDOWS#

Source : Production checkpoints - Microsoft Docs.

This makes it possible to favor the use of new production checkpoints to maintain data consistency as much as possible for the applications that run in the virtual machine concerned.

However, these should only be used in test environments.Īs you can see, by default your new virtual machines are configured to create production checkpoints (if possible) or standard checkpoints (if not).

Standard checkpoints : old type of checkpoints used to quickly save and restore the state of a virtual machine.

If the guest operating system is Linux, then the file system buffers will be flushed so that the checkpoint created is consistent for applications running in it. This avoids the various problems that could have occurred with standard checkpoints.

#HYPER V 2012 COM PORT NAMED PIPE WINDOWS#

This is possible, because Hyper-V relies on the Volume Shadow Copy Service (VSS) present in the guest Windows operating system. Production checkpoints : this new type of checkpoints allows you to create complete and consistent checkpoints for applications that are currently running in the guest operating system.To start, you will have the possibility to enable or not the use of checkpoints (snapshots), but also to choose which type of checkpoints should be used : On Windows Server 2016, this section has been renamed 'Checkpoints', because several options have been added there. With the 'Snapshot File Location' (or Checkpoint File Location) option, you can choose where Hyper-V will store the snapshots (or checkpoints) of this virtual machine. Snapshot File Location (Checkpoint File Location) Guest services : enable file copying from the host server to the virtual machine and vice versaįor more information about Hyper-V integration services, refer to ' Hyper-V Integration Services' page on Microsoft Docs.Ģ.13.This option corresponds to the VSS service. Backup (volume checkpoint) : creates snapshots while maintaining data consistency during the backup process.Heartbeat : allows the virtual machine to report to the host server that it is still operating correctly.Data Exchange : allows you to exchange metadata between the virtual machine and the host server.Time synchronization : synchronizes the virtual machine time with the host server time.Operating system shutdown : allows the host to shut down a virtual machine.In the 'Integration Services' section, you will be able to configure the integration services that you have previously installed in the guest operating system. In the 'Name' section, you will be able to change the name of the virtual machine, as well as add notes about it. However, natively, it isn't possible to connect a virtual COM port to a physical COM port.įor Generation 1 virtual machines, you will be able to use a virtual floppy file in 'vfd' format if you wish. Notice how PowerShell shows two available COM ports? However, if you open the guest machine’s Device Manager, there won’t be any COM ports listed for the VM.Ĭheck out the example below (using COM1) to configure a pipe path for COM ports while a virtual machine is running:Īs mentioned before, when checking the guest machine’s Device Manager, COM1 isn’t displayed-but once the VM is shut down and restarted, the desired COM port will now be available from the list (see below.)įor those experienced with kernal debugging, the remaining process is fairly simple and straight-forward-with just one minor exception specific to Gen-2 VMs (even more specifically UEFI-based computers using Secure Boot.In the 'COM 1' and 'COM 2' sections, you can connect a virtual COM port to a named pipe.

#HYPER V 2012 COM PORT NAMED PIPE SERIAL#

The reason being that, regardless whether serial ports are available or not, Gen-2 Hyper-V Manager never displays COM ports.īelow we’ll take a peak inside what PowerShell has to say: In the below example, you’ll see that settings for a basic gen-2 virtual machine lacks COM port options.

#HYPER V 2012 COM PORT NAMED PIPE DRIVER#

The screenshots below are from a Windows 8 VM (specifically utilizing media created in the previous section where the driver for the software-based keyboard was added.) But there aren’t COM ports for Gen 2 VMs, right…?įrankly, the answer is a mix of yes and no (with the “no” mainly centered on default Hyper-V serial port passthrough capabilities.) The exciting news is, this is adjustable!

Hyper v 2012 com port named pipe