PowerShell Management Library for Hyper-V

Reviewed: R2 SP1 (Nov 25, 2013)

Tailslide — Mon, 25 Nov 2013 16:32:59 GMT

Rated 1 Stars (out of 5) - Does not install for me.. runs through the script then can't find the module when I try it.

Created Unassigned: How to remove PSHyperv library [10439]

omsdba — Tue, 19 Nov 2013 19:50:41 GMT

I have downloaded and tried installing. Somehow it was not able to invoke the registry entries. Is there a way to uninstall/remove the pshyper library.

thanks

New Post: List Hyper-V Users

tyni — Wed, 21 Aug 2013 18:00:50 GMT

Is it possible to list the users that are currently connected a Hyper-V VM?

Ex: You add people to Hyper-V admin list and someone connects to a VM reomotely. Is there a powershell command to see which users are connected to which machines?

New Post: Is it possible to implement remove-vmdisk?

badbob001 — Fri, 09 Aug 2013 13:44:43 GMT

I have some vm's with restricted network access and the only way to backup files from them automatically is to shutdown the vm, mount the vhd locally, copy the files, unmount the vhd, and start the vm. I would love to do this process without downtime by being able to simply remove-vmdisk one of the vm's virtual scsi vhds and add-vmdisk it back after the copy. In 2008 R2, it is possible to add/remove scsi disks from a vm without downtime.

Add-vmdisk is already implemented but I don't see remove-vmdisk. Has anyone implemented this missing function?

Thanks!

Created Unassigned: Feature request: remove-vmdisk [10273]

badbob001 — Fri, 09 Aug 2013 12:18:51 GMT

With 2008 R2, scsis disks can be added and removed from a VM without downtime. Can we please have a matching remove-vmdisk to go with the existing add-vmdisk?

I find it useful to be able to remove a vhd from a vm, mount it locally to copy data off it, unmount it, and then re-add the vhd back to the vm... all without any downtime to the vm. This is essential for transferring files between vm's with restricted network access.

Thanks!

Created Unassigned: invoke-shutdown will not shut down XP guest [10263]

bitdoctor — Tue, 06 Aug 2013 13:37:39 GMT

Okay, I think I have narrowed this down. It appears the "invoke-shutdown" will not shut down an XP guest. Any thoughts on why? I realize it is a workstation and thus not a server, but still, there should be a programmatic way to shut down even XP vm guests, right?

New Post: Export-VM to network path

bitdoctor — Mon, 05 Aug 2013 20:18:21 GMT

"Dlute," this is WONDERFUL code, but has a number of errors in it.
At least one place is "munged together," when it should have a space between 2 commands.
Apparently, powershell vm-library cmdlets act differently depending on server version (i.e., if my VM host is 2008 R2 vs. 2012 [mine is 2012 server]) and depnding on if you installed/loaded/imported Gold/R2 vs. Stable SP1? (I did pull down the latest, and it appears to have some holes that existed back in SP1 and before).

Apparently, invoke-shutdown doesn't always work, but there is an alternative command "stop-vm" - not sure of the differences. Is "invoke-shutdown just running "stop-vm?"

A couple places, I think you might have "piped" one part of a line to another, but since a space (or 'pipe character') is missing, it's hard to know for sure.
Also, some of the VM library cmdlets apparently want "vm-command -VM actual-vm-name" and others want "vm-command -Name actual-vm-name" - there's a lot of inconsistency here, as well as the fact that some cmdlets don't want any added modifiers (i.e., start-vm vm-name), or don't give any error messages if they fail (possibly in event logs, but no direct messages such as "Hey, dude, I failed!")

Various items also appear that they may depend on version of Integration Services and/or underlying Guest o/s; i.e., W2K3 and XP seem to have some oddities that aren't handled exactly the same vs. 2008 / 2008 R2 / 2012; and, I'm guessing, there are some dependencies & oddities based upon version of Powershell?

The Gold/R2 release of the VM cmdlet library appears to have some fixes UN-DONE from the SP1 release. I guess the SP1 may be the more stable release?
Because... some things had comments in various news articles saying, "Oh, this is FIXED in SP1." Well, if that's true, then why is it BROKEN in the version that is NEWER than SP1? - all FIXES for SP1 should be included/rolled-up into R2 (and maybe the are, and I'm just hallucinating).

In server 2012, after doing "import-module "C:\Program Files\modules\HyperV\hyperv.psd1"," various VM-based cmdlets fail (like invoke-shutdown, start-vm, etc.), UNTIL you exit and re-enter Powershell UI - once you do that, then it resets/fixes some things again (temporarily). When the "start-vm" or "invoke-shutdown" do not work, they do not always give errors, just return to the command line, and then you are left wondering: "Did it work?"

Here is one place you had badly messed up in your script:
"invoke-vmshutdown $arrComps -force
new-vmsnapshot $arrComps -force -waitstart-sleep -s 30
Start-VM $arrComps -HeartBeatTimeOut 300"

Apparently, "-waitstart-sleep" is not a command and needs either a pipe character and/or a carriage return after "-wait" [carriage-return] then "start-sleep -s 30" (or was there a 'pipe' character between -wait and start-sleep?)

Personally, all I want to do is: 1) Stop a vm, 2) Export the vm (don't care about 'snapshot' - I guess someone can tell me why that is so much better than just exporting the stopped vm? - aside from the fact that snapshot is generally quick and I can restart my vm, while the snapshot can then be copied later; vs. waiting for the export to finish before being able to start my vm back running again).

Still, via your script there are at least TWO shutdowns, since you come back and remove the snapshot later; would be nice to have only ONE shutdown. In many case, TWO separate shutdowns would be more disruptive than one long outage to export the VM.

New Post: Invoke-VMShutdown not working

bitdoctor — Mon, 05 Aug 2013 13:12:23 GMT

This did not (does not) appear to be my issue. I get the exact same error AFTER I upgraded my integration services on an older XP VM guest (and possibly on a 2008 R2 Guest as well). Prior to my upgrading the Integration Services, the invoke-vmshutdown worked fine. I will restart VMM service on the VM Host and see if that makes a difference.

c:> invoke-vmshutdown prodbox -force
invoke-vmshutdown : Could not begin Shutdown of prodbox
At line:1 char:1

invoke-vmshutdown prodbox -force
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- CategoryInfo : InvalidResult: (:) [Write-Error], WriteErrorException
- FullyQualifiedErrorId : 32768,Invoke-VMShutdown

Granted, the XP integration services appears to be a different version?
YOU WANT A FEATURE REQUEST: SHOW INTEGRATION SERVICES VERSION AS A COLUMN IN THE VM MANAGER DISPLAY!!!! How SIMPLE would THAT make our lives?

Commented Unassigned: Snapshot.ps1 - cannot validate variable [10259]

bitdoctor — Fri, 02 Aug 2013 20:43:39 GMT

I pulled down THE latest Gold+R2 or something, and I get this error when trying to select/remove a snapshot:

The variable cannot be validated because the value is not a valid value for the VM variable.
At C:\Program Files\modules\HyperV\SnapShot.ps1:176 char:28
+ if ($VM -is [String]) {$VM=(Get-VM -Name $VM -Server $server) }
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : MetadataError: (:) [], ValidationMetadataExcepti
on
+ FullyQualifiedErrorId : ValidateSetFailure
Comments: ** Comment from web user: bitdoctor **

seems to be this line:
if ($VM -is [String]) {$VM=(Get-VM -Name $VM -Server $server) }

Created Unassigned: Snapshot.ps1 - cannot validate variable [10259]

bitdoctor — Fri, 02 Aug 2013 20:42:16 GMT

New Post: Documentation for this Library????

guindasoft — Fri, 26 Jul 2013 23:50:28 GMT

hello, try downloading pdf file en DOWNLOADS tab

https://pshyperv.codeplex.com/downloads/get/101935

bye

New Post: Rollback procedure # how to remove library for hyper-v

guindasoft — Fri, 26 Jul 2013 23:28:58 GMT

hello all, im going to implement this library in production environment and i need a rollback procedure just in case.

i could make a registry backup to restore it if need it.
but how can i remove library o restore original one if instalation fails or any error occurs?

thank you very much in advance!
best regards

Commented Issue: In Windows 8, module load fails with 'Missing argument in parameter list' error. [9620]

Tekkie — Fri, 19 Jul 2013 19:54:42 GMT

PowerShell V3 in Windows 8 seems to be more strict about syntax and HyperV module fails to load:

PS>Import-Module .\HyperV.psd1
At D:\HyperV\Menu.ps1:276 char:79
+ 20 { $SelectedVHD = (Select-List -InputObject $vhd -Property ,@ ...
+ ~
Missing argument in parameter list.
At D:\HyperV\Menu.ps1:1141 char:79
+ 20 { $SelectedVHD = (Select-List -InputObject $vhd -Property ,@ ...
+ ~
Missing argument in parameter list.
+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : MissingArgument
Comments: ** Comment from web user: Tekkie **

Actually the problem is not related to Windows 8 as such but to PowerShell 3.x as I get the same error on Windows 7 with PS3:

At WindowsPowerShell\Modules\HyperV\Menu.ps1:276 char:79
+ 20 { $SelectedVHD = (Select-List -InputObject $vhd -Property ,@ ...
+ ~
Missing argument in parameter list.
At WindowsPowerShell\Modules\HyperV\Menu.ps1:1141 char:79
+ 20 { $SelectedVHD = (Select-List -InputObject $vhd -Property ,@ ...
+ ~
Missing argument in parameter list.
+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : MissingArgument

New Post: Adding SCSI drive to vm.....

linuxaddict2212 — Fri, 31 May 2013 06:19:00 GMT

I am trying to add precreated VHD disk to my VM. I have added one VHD to scsi controller using the following command -->

add-vmdisk -vm "vmname" -scsi -vhdpath "path of my vhd"

But now when i am trying to add another vhd I am getting error. Please let me know how can I add second vhd to scsi controller.

New Post: Remove-VMSnapshot

rathyAro — Mon, 20 May 2013 17:09:43 GMT

Hey guys, I wanted to know if I could use Remove-VMSnapshot without use of the "|" symbol? Is there anyway I can type the snapshot's name on the command line? and how do I get that name? or is there something equivalent to using "|"?

New Post: get-vmhost not displaying all Hyper-V hosts

mjhummer — Wed, 15 May 2013 23:48:29 GMT

I seem to be having the same issue as well. I have double checked that the install of the hyper-v module, .NET has been installed, and powershell 2.0 is successfully installed.
The post above is from a few year ago but if there is any information on where the cmdlet gets this list or any guild as to why some hyper-v hosts show and some don't then it would be greatly appreciated.
thank you
Michael

New Post: Add a pass-through disk with Add-VMDisk

Fluidetom — Tue, 07 May 2013 15:18:13 GMT

Hey,

I'm running Windows Server 2008 R2 Enterprise in my lab and I need to attach two physical disks (SAN disks in fact) to a VM. I've noticed other posts in this forum about the same topic but none contained any lead to a solution.

So, is it possible to add a pass-through disk with this cmdlet or not ?

Thanks

Reviewed: R2 Gold (Apr 08, 2013)

Bridge81 — Tue, 09 Apr 2013 06:50:56 GMT

Rated 5 Stars (out of 5) - A great module! but an error occured when I run "menu.ps1", and I find the error on line 276 "Select-List -InputObject $vhd -Property ,@{Name....". Delete the "," between "-Property" and "@{Name..." is fine.

New Post: Hyper-V Cmdlets in Windows PowerShell using C#

Alokkumarsharma — Tue, 26 Mar 2013 07:14:00 GMT

Hello ,

I have Installed /Configured Hyper-v Manager on Windows Server 2012.I want to Execute powershell command like 'GET-VM' then error coming as :-

private string RunScriptNew(string scriptText)

    {
        PowerShell ps;
        ps = PowerShell.Create();
    ps.AddScript("Set-ExecutionPolicy RemoteSigned -Force");
       //ps.Invoke();
        ps.AddScript(@"Import-Module Hyper-V");
        ps.Invoke();
        // Add the PowerShell script to be run
        ps.AddScript(scriptText);
        ps.Commands.AddCommand("Out-String");
        // execute the script
        Collection<PSObject> results = ps.Invoke();
        StringBuilder stringBuilder = new StringBuilder();
        // convert the script result into a single string
        foreach (PSObject obj in results)
        {

            stringBuilder.Append(obj.ToString());

        }

        // convert the erros into a single string

        foreach (ErrorRecord error in ps.Streams.Error)
        {
            stringBuilder.Append(error.ToString());
        }
        return (stringBuilder.ToString());

    }

"The 'C:\Windows\system32\WindowsPowerShell\v1.0\Modules\Hyper-V\Hyper-V.psd1'
module cannot be imported because its manifest contains one or more members
that are not valid. The valid manifest
members are ('ModuleToProcess', 'NestedModules', 'GUID', 'Author', 'CompanyName',
'Copyright', 'ModuleVersion', 'Description', 'PowerShellVersion', 'PowerShellHostName',
'PowerShellHostVersion', 'CLRVersion', 'DotNetFrameworkVersion', 'ProcessorArchitecture',
'RequiredModules', 'TypesToProcess', 'FormatsToProcess', 'ScriptsToProcess', 'PrivateData',
'RequiredAssemblies', 'ModuleList', 'FileList', 'FunctionsToExport', 'VariablesToExport',
'AliasesToExport', 'CmdletsToExport'). Remove the members that are not valid ('HelpInfoUri'),
then try to import the module again.
The term 'GET-VM' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again."

New Post: Get VM state and continue

JoffreMota — Mon, 18 Mar 2013 17:30:18 GMT

Thanks in advance, costasppc.

Have a nice week!