Comments on: Backup VMs in a Hyper-V Cluster (Core-version)

By: Admicom

Admicom — Tue, 31 Jan 2012 09:52:21 +0000

Thks Donato.

I have found the problem : it comes from the snapshots. I have manually merged the snapshots, one by one, with the parent one, renaming *.avhd in *.vhd the latest one, and I finally obtain a unique *.vhd.

So, the export function works now and the script too. Thank u for your help.

Bye.

Nicolas (France)

By: Donato

Donato — Mon, 30 Jan 2012 10:26:16 +0000

sorry, i was wrong
change “$dest\TmpDir” with “c:\TmpDir”

By: Donato

Donato — Mon, 30 Jan 2012 08:36:56 +0000

to Admicom:
the export don’y start…
try to save in a local directory
## Export to Temp dir

echo “Exporting the VM: $VMName”
$exportstart = get-date -uformat “%Y-%m-%d %H:%M:%S”
Add-Content $log “$exportstart :: $VMName : Exporting started”
$status = $VM_Service.ExportVirtualSystem($VM.__PATH, $True, “$name\TmpDir”)
||||||
change the original $dest with $name in this point and check if export work

By: Admicom

Admicom — Fri, 27 Jan 2012 23:32:33 +0000

Here is what I obtain :

__GENUS : 2
__CLASS : __PARAMETERS
__SUPERCLASS :
__DYNASTY : __PARAMETERS
__RELPATH :
__PROPERTY_COUNT : 2
__DERIVATION : {}
__SERVER :
__NAMESPACE :
__PATH :
Job : \\HYPERV1-W2K8\root\virtualization:Msvm_ConcreteJob.Instance
ID=”CBD12BF1-F1D0-4AF2-AE8D-4FFBA56A9F32″
ReturnValue : 4096

Saving the state of 01_DC-MYCOMPANY – 2012-01-28-samedi
Exporting the VM: 01_DC-MYCOMPANY
0
Name : 01_DC-MYCOMPANY
Parent :
Exists : True
Root : F:\
FullName : F:1_DC-MYCOMPANY
Extension :
CreationTime : 28/01/2012 00:28:22
CreationTimeUtc : 27/01/2012 23:28:22
LastAccessTime : 28/01/2012 00:28:22
LastAccessTimeUtc : 27/01/2012 23:28:22
LastWriteTime : 28/01/2012 00:28:22
LastWriteTimeUtc : 27/01/2012 23:28:22
Attributes : Directory
BaseName : 01_DC-MYCOMPANY
Mode : d—-

Name : Daily
Parent : 01_DC-MYCOMPANY
Exists : True
Root : F:\
FullName : F:1_DC-MYCOMPANY\Daily
Extension :
CreationTime : 28/01/2012 00:28:22
CreationTimeUtc : 27/01/2012 23:28:22
LastAccessTime : 28/01/2012 00:28:22
LastAccessTimeUtc : 27/01/2012 23:28:22
LastWriteTime : 28/01/2012 00:28:22
LastWriteTimeUtc : 27/01/2012 23:28:22
Attributes : Directory
BaseName : Daily
Mode : d—-

Name : 01
Parent : Daily
Exists : True
Root : F:\
FullName : F:1_DC-MYCOMPANY\Daily1
Extension :
CreationTime : 28/01/2012 00:28:22
CreationTimeUtc : 27/01/2012 23:28:22
LastAccessTime : 28/01/2012 00:28:22
LastAccessTimeUtc : 27/01/2012 23:28:22
LastWriteTime : 28/01/2012 00:28:22
LastWriteTimeUtc : 27/01/2012 23:28:22
Attributes : Directory
BaseName : 01
Mode : d—-

__GENUS : 2
__CLASS : __PARAMETERS
__SUPERCLASS :
__DYNASTY : __PARAMETERS
__RELPATH :
__PROPERTY_COUNT : 2
__DERIVATION : {}
__SERVER :
__NAMESPACE :
__PATH :
Job : \\HYPERV1-W2K8\root\virtualization:Msvm_ConcreteJob.Instance
ID=”AF1BA7B5-5E6E-4153-804E-E9EAB1D1BC45″
ReturnValue : 4096

7-Zip (A) 9.20 Copyright (c) 1999-2010 Igor Pavlov 2010-11-18
Scanning

Creating archive F:1_DC-MYCOMPANY\Daily1\2012-01-28-samedi.zip

Everything is Ok

By: Admicom

Admicom — Fri, 27 Jan 2012 00:18:43 +0000

I precise that all my VMs are running on the same node. This issue is amazing. Don’t understand.

Nicolas

By: Donato

Donato — Thu, 26 Jan 2012 10:47:42 +0000

On a Cluster configuration may be that a node has no VMs running..
added an escape instead of saving state:

## If the virtual machines isn’t specified to be excluded, then continue else exit from scrip execution

if (($VM.EnabledState -eq 2) -or ($VM.EnabledState -eq 32768) -or ($VM.EnabledState -eq 32770))
{
$VM.RequestStateChange(32769)
echo “Saving the state of $VMName – $date”
$savestart = get-date -uformat “%Y-%m-%d %H:%M:%S”
Add-Content $log “$savestart :: $VMName : Saving the state”
}
else
{ echo ” No VMs on $name”
Add-Content $log “$dttm :: No Vms on $name”
exit
}

By: Donato

Donato — Thu, 26 Jan 2012 10:13:52 +0000

Hi Niklas i’m also interestead to to have a backup retetion time of 14 days like wannascript said.
Can yu post a solution?
Thank you

By: Donato

Donato — Thu, 26 Jan 2012 09:55:39 +0000

Hi!
Great script!
had the same problem of Alireza and Admicom, found a problem in the export:
Nico was right: is an access problem to shared folder, solved it works!

By: Admicom

Admicom — Sun, 22 Jan 2012 15:48:01 +0000

Hi guys,

This script works on my hv1 with several vm but for some vm, the zips are empty. If i deactivate the 7zip in the script, same issue : the folder is empty too…

Any idea ?

Nicolas

By: Nico

Nico — Wed, 11 Jan 2012 15:01:21 +0000

It seems that the state save, Snapshot and Export functions are executed by the Computer Account, which was not allowed to access the NAS share.

If I may do an improvement at the beginning of your script, instead of giving the Hostname, you could use this to get it directly:
$ipProp = [System.Net.NetworkInformation.IPGlobalProperties]::GetIPGlobalProperties()
$name = $ipProp.HostName