One of my VMs can not be backed up in Hyper-V for some reason. It gets following error in event viewer 

<Data Name="BackupTime">2015-04-03T19:57:50.715000000Z</Data><Data Name="ErrorCode">0x8100010c</Data><Data Name="ErrorMessage">%%2164261132</Data></EventData>

- <EventData><Data>Microsoft Hyper-V VSS Writer</Data><Data /><Data>Component reports path on volume which has been excluded. (0x8100010F)</Data><Data /><Binary>00000000FA1C0000A81C00000000000042BEB7871435CED8047BAD4DC901000000000000</Binary></EventData></Event>

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2013 Microsoft Corp.

Writer name: 'Task Scheduler Writer'
   Writer Id: {d61d61c8-d73a-4eee-8cdd-f6f9786b7124}
   Writer Instance Id: {1bddd48e-5052-49db-9b07-b96f96727e6b}
   State: [1] Stable
   Last error: No error

Writer name: 'VSS Metadata Store Writer'
   Writer Id: {75dfb225-e2e4-4d39-9ac9-ffaff65ddf06}
   Writer Instance Id: {088e7a7d-09a8-4cc6-a609-ad90e75ddc93}
   State: [1] Stable
   Last error: No error

Writer name: 'Performance Counters Writer'
   Writer Id: {0bada1de-01a9-4625-8278-69e735f39dd2}
   Writer Instance Id: {f0086dda-9efc-47c5-8eb6-a944c3d09381}
   State: [1] Stable
   Last error: No error

Writer name: 'System Writer'
   Writer Id: {e8132975-6f93-4464-a53e-1050253ae220}
   Writer Instance Id: {21031890-e67e-486c-b7e4-5ad4851327c3}
   State: [1] Stable
   Last error: No error

Writer name: 'Microsoft Hyper-V VSS Writer'
   Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
   Writer Instance Id: {9b1ddf47-6108-4c86-83bb-a5b757e76b87}
   State: [1] Stable
   Last error: Unexpected error

Writer name: 'ASR Writer'
   Writer Id: {be000cbe-11fe-4426-9c58-531aa6355fc4}
   Writer Instance Id: {c6424958-76f0-444f-a1e4-12ea8f6a8fe8}
   State: [1] Stable
   Last error: No error

Writer name: 'Dedup Writer'
   Writer Id: {41db4dbf-6046-470e-8ad5-d5081dfb1b70}
   Writer Instance Id: {3feacf42-a854-439e-8057-0b3272e56df8}
   State: [1] Stable
   Last error: No error

Writer name: 'BITS Writer'
   Writer Id: {4969d978-be47-48b0-b100-f328f07ac1e0}
   Writer Instance Id: {28a1a75b-7367-43ea-9019-0bd6783dc5a3}
   State: [1] Stable
   Last error: No error

Writer name: 'COM+ REGDB Writer'
   Writer Id: {542da469-d3e1-473c-9f4f-7847f01fc64f}
   Writer Instance Id: {13b6ff8c-d83d-40ef-9429-7010626a43f4}
   State: [1] Stable
   Last error: No error

Writer name: 'Registry Writer'
   Writer Id: {afbab4a2-367d-4d15-a586-71dbb18f8485}
   Writer Instance Id: {64b63501-e662-4291-9127-bb05ac66c378}
   State: [1] Stable
   Last error: No error

Writer name: 'WMI Writer'
   Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}
   Writer Instance Id: {200026dc-0486-4122-b902-1e18f7a253b4}
   State: [1] Stable
   Last error: No error

Writer name: 'Shadow Copy Optimization Writer'
   Writer Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}
   Writer Instance Id: {f4f20b03-7055-41ad-a84f-109d555ef894}
   State: [1] Stable
   Last error: No error

Writer name: 'IIS Metabase Writer'
   Writer Id: {59b1f0cf-90ef-465f-9609-6ca8b2938366}
   Writer Instance Id: {b3967510-e9e8-4687-8775-1fc976a8f863}
   State: [1] Stable
   Last error: No error

On a fresh Server 2012R2 Essentials install, I set up Hyper-v and created an external virtual switch. Connection to the vm is good but Health Report no shows loss of internet connectivity and that the router is incorrectly setup. 

However, I still have a working internet connection? I worry that the server may not update or allow Anywhere Access at some time. Any suggestions? Thanks

The problem: I am unable to get traffic between a Hyper-V host and it's VM to utilize an internal virtual switch while an external virtual switch is also connected.

Currently running a single Win2012 R2 server with Hyper-V installed as a test environment. I have one Hyper-V VM, VM1, which needs fast access to a file share located on the Hyper-V host VM1 is hosted on. The Hyper-V host has two Hyper-V virtual switches configured. One is an external virtual switch and is tied to the physical 1GB network adapter on the Hyper-V host. The other is an internal virtual switch and as such is not tied to the Hyper-V hosts physical network adaptor. VM1 has two virtual adaptors configured on it; the external and internal adaptors as outlined above. The external virtual switch's subnet is 192.132.4.x with both the host and VM1 having a unique IP address on that subnet. The internal virtual switch's subnet is 10.10.0.x with both the host and VM1 having a unique IP address on that subnet.

Hyper-V Host:
Internal IP: 10.10.0.10
External IP: 192.132.4.10

VM1:
Internal IP: 10.10.0.20
External IP: 192.132.4.20

The problem occurs like this. Both the internal and external virtual adaptors are enabled. Logged into VM1, I copy a 2GB file from the Hyper-V host's share at \\10.10.0.10\share to VM1's C:. I have Task Manager open and am on the Performance tab where I can see which adaptors the traffic is using based on utilization. When I transfer the 2GB file the external adaptor is clearly being used to transfer the file and the internal adaptor shows no traffic. What I want to see is the traffic traversing the internal adaptor since the \\10.10.0.10 IP does not exist on the 192.132.4.x subnet which the external adaptor's virtual switch is connected to. Now, I disable the external virtual adaptor on VM1 and repeat accessing the same share at \\10.10.0.10\share; the file transfers to VM1 using the internal virtual adaptor this time.

I don't understand how the external adaptor can be used to access a path destined for the 10.10.0.x subnet in the first place; that adaptor can not access that subnet.

Aside from Performance monitor clearly showing the traffic usage the internal vswitch is not capped by the physical 1GB adaptor and really flies speed-wise. This is the reason for this setup; 100-120MB's vs 600MB's. This is a developmental environment and I am aware this would not be good for a production environment.

Help is greatly appreciated!

Mike

Hi,

So, I have a weird issue regarding 2 hyper-v core servers 2012 R2

If I use a machine on the same network as the management IP of the hyper-v servers, I can use hyper-v manager perfectly fine to manage the servers.

If the machine is not on the same network, I end up with RPC issues:

* the first server, shows in hyper-v manager, but fails to load the vm with RPC server unavailable. Unable to establish communication....

* the second server does not even want to show up in hyper-v manager

if I use 5nine manager:

* the first server shows and the VMs load

* the second server fail with RPC unavailable.

I have ran hvremote which detects no issue at all except that the firewall on the servers are down (normal as i am troubleshooting)

I can ping / rdp / powershell perfectly fine.

Also, for the second server, when I launch powershell from the command prompt:

* Attempting to perform the InitializeDefaultDrives operation on the 'FileSystem' provider failed.

But the first one does not have an issue.

If anyone could point me in the right direction, it will be appreciated :)

Olivier

Hello,

I have a Windows Server 2012 R2 Standard server with Hyper-V, where there is a VM.  Hyper-V Manager is 6.3.9600.16384 is used.

The VM was created and at that time it was able to authenticate accounts from anther domain.  The VM is in one domain, say Domain A, and the VM and applications on the VM was able to use accounts in another domain, say Domain B.  Doman A and Domain B had a trusted relationship and all was working great on the VM and other servers in Domain A.

Then, the trusted relationship was broken.  The applications and the VM still worked, but you could not add and use accounts in Domain B.  Applications using accounts in Domain B could be not be authenticated either.

Then, recently we fixed the broken relationship between the two domains.  However, on the VM, accounts from Domain B could not be added to applications and could not be authenticated nor used, even though other servers in Domain A had accounts from Domain B working again.

What can be done to get the VM to recognized accounts in Domain B, now that the trusted relationship is working again between to two domains?

Paul

Server 2012 R2 hyper-V. What we want to do is stop the host OS from grabbing ip's on NIC's that the host OS does not use.

The physical server has 3 NIC's. NIC 1 is dedicated to the host OS; NIC 2 is dedicated to a VM and NIC 3 is dedicated to a VM. When I logon to the host and look at the network settings, it shows two of the NIC's getting ip's via DHCP. If I turn uncheck"allow management OS to share this network adapter", I get the following:

This is on NIC 2 which belongs to a VM and not the host OS. How do I turn off/disable the host OS gleaming onto the other 2 NIC's?

Good morning!

I am trying to figure out a way to easily swap between 3 external USB hard drives on a Server 2012 R2 virtual machine that runs via Hyper-V. I have 3 external hard drives, each is 2 terabytes in size.  These 3 drives are going to be used to backup the C: drive of the virtual server.

Is there a way to avoid the hassle of having to initialize each drive manually on the server after I unplug one drive and then connect another? I don't ever want more than 1 drive connected at a time. For example, if I have drive 1 plugged in and my backup cycle is complete I would like to be able to unplug that first drive and then plug in the 2nd drive without having to go back into the drive management and initialize the drive I just plugged in. Is that possible? I haven't been able to find anyone that seems to be doing this, so I may be out of luck. 

Thanks for any help you can provide.

I added 2 new servers to my existing Hyper-v 2012 server core failover cluster and there are many physical network connections on these servers.  One of the network connections on the new servers goes to a switch that doesn't have any additional 1gb connections and only has 100mb ports available.  The existing servers are connected to 1gb ports and they work fine.  The new servers are connected to the 100mb ports and when the host is setup with an IP on that network, I can ping other devices just fine but when I setup a vswitch connected to this external network adapter and share it with the host, I can ping between a Guest VM and the host but I can't ping on the external network.  So it appears that a Hyper-v vswitch doesn't autonegotiate with an external network connection that is set for autonegotiate on the switch but limited to 100mb.  I switch the cables between a server that ha 1gb connection put it into the new server and it communicates just fine but the old server won't communicate on 100mb port.

Does anyone know how to setup the vswitch external network connection so that it will communicate on a 100mb external network?

Ahoy mateys!

I want to be able to export the VMs directly to a network drive.  It is giving me an access error even though on the network computer i've set up permissions to the server FULL ACCESS.  Do any of you have a step by step process that you know works? Please don't send me any links unless you know it works.  I've just spent 8 hours researching this.

Thanks in advance!

Customer would like to user Hyper-V Replica, but their local site and DR site are different domains.

I know we need certificate. Is there any guide for this? I didn't find any configuration document, thanks. 

Help I'm setting up a Citrix Server and I have 2 VM's setup and one works perfectly fine, but the other one has 2 IP address, one the static, the one i gave it (192.168...) and the other 169... which I'd like to get rid of. Any one have any ideas? Everything is working fine on the host and the other VM, it's just this one!

Thanks!

I am looking for a document that will give me some suggested Hyper-v supported and recommended server configuration. Recently our company rolled out two Hyper-V servers. The host system is configured to be the Domain Controller. 

One server was configured to be a Host Server Domain Controller and a virtual server Exchange server.  The Exchange server failed three times.  The host domain Controller had been put into services and was active.  I finally called Microsoft and was told this would not a supported or recommended configuration and it would continue to fail.  The technical help I had was very good and he pointed me in the right direction to building it directly on the domain controller.  Since the Exchange server had already been built and the scheme to the domain controller had been extended this was horrendous but it worked.  "Thank you Microsoft technical team."

The second Hyper-V server is setup the same the host server is the DC.  The current virtual server is a SQL server.  This seems to be working. We had some issues at first with network connections but I made some DNS entries and it seems to be stable now.  This system is to have an Exchange host added to it and I'm worried that it will have the same issues as the first server.  I would like to add it directly to the DC as I finally did the first time but I'm worried it will make the SQL server fail. 

This is currently in a production environment?  Does anyone have any suggestion or can you point me to a good tech document that discusses configurations?

Thank you.

Bonnie Whalon

hypervbackup is the utility  I used to run backup.

Thanks In advance. Please let me know if more details are required.

Hi All,

we have windows 2012 Hyper-V (in clustered environment) in place on have few guest machines, one of the guest machine (guest machine is windows 2012 R2) went down unexpectedly two days before then we started it manually.

on guest machine we have found event id 41 after searching in the net we got the below article describing the issue.

http://support.microsoft.com/en-us/kb/2028504#method3

on the same host machine rest of the guest machines working fine without any issues.

My query is below:

Is any event id generated on the hyper-v host when the guest machine shutdowns unexpectedly or graceful shutdown.

Please suggest

Hi Members,

We have Linux VM on which we assigned dynamic memory approx 20 GB and 8 Logical Processor.

Machine was performing slow for which i just just checked inside VM performance its memory utilization shows 19 GB and processor usage shows 98 % while on hyper-v manager it shows 17 GB utilization of memory and only 35 % processor utilization.

can someone explain which one shows correct figures

Inside VM or hyper-v manager ?

Hi, 

I have a problem, with configuring a Virtual Network Adapter on SC VMM. 

I created a logical switch with two physical network adapter (team) and add a virtual network adapter to the logical switch. After that a virtual network adapter will be created on the hyper-v host, but with the status "domain.local (unauthenticated). With another hyper-v host it work without problems. 

I tried to remove and recreate all that stuff but without success. 

Do someone know that problem? Or can help to find a solution? 

Thank you for the help.

Br, 

Andi

Dear All,

I am planning to user virtualization for our infrastructure, My requirement is

Total Core required : 16 C and memory : 82 GB

while planning H-V, how much memory i have to reserve for the HOST system and also how to calculate the exact number of servers, is there any tool available?

Hi,

I have 2 workgroup machines and I'm trying to perform a Live Move from Powershell on the source machine.  I've configured CredSSP on both servers using the Hyper-v management console but when I run

move-vm source_vm destination_host  I get the following error

move-vm : Virtual machine migration operation for 'source_vm' failed at migration source 'source_host'. (Virtual machine ID A4186964-5976-45DC-847F-41D7589BD9EF)
The Virtual Machine Management Service failed to authenticate a connection for a Virtual Machine migration with host 'source_host'. Please check the Admin events of the host 'source_host' in the
Hyper-V-VMMS event log for more information.
Failed to send data for a Virtual Machine migration: An existing connection was forcibly closed by the remote host. (0x80072746).
At line:1 char:1

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (Microsoft.Hyper...VMMigrationTask:VMMigrationTask) [Move-VM], VirtualizationOperationFailedException
    + FullyQualifiedErrorId : OperationFailed,Microsoft.HyperV.PowerShell.Commands.MoveVMCommand

I've looked in the Hyper-V-VMMS event log and its referencing an authentication error.  Can anyone point me in the right direction?  This is the error

The Virtual Machine Management Service failed to authenticate the connection for a Virtual Machine migration at the destination host: An existing connection was forcibly closed by the remote host. (0x80072746).

I've anabled remote management and also the CredSSP stuff and am struggling to find anything else that is needed for live Migration within 2 workgroup machines.  Both Administrator usernames\passwords are the same on each host.

Thanks

Alter De Ruine