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IPV6 and Hyper-V in Windows 2012

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Having some trouble finding MS guidance on Hyper-V 2012 and IPV6.

We do not use IPV6 on our network.

Are there any good reasons to enable or disable IPV6 on the network adapters and if so can you please point me to specific MS guidance on why you should enable or disable IPV6 when using Hyper-V in Windows 2012 ( not R2 )?   Thanks.



Hyper V will not allow me to access a VHD residing on a network storage device

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Windows server 2012 Hyper V version 6.2.9200.16384

This is a new install of Hyper-V and I am trying to take a .VHD file from another server move it to this new server and build a new VM.

I have a network storage device \\sunxxxxx\sunxxxxx where an existing .vhd file is stored.

When I try and create a new VM using this existing .vhd file as the disk, I get an error saying an error occurred accessing the file - Failed to get disk information

In the Hyper-V MMS log I get the same message with an id of 15268

If I look at the Hyper-V Storage log I get a message 27000 saying Failed to open attachment <path:filename> The request is not supported. 

If I try to create a new VM and just create a new disk in the same location I get two storage messages - 27108 saying the filename xxxxxxx.vhdx is reserved for windows and then 27262 saying the system failed to create <path:filemane> the request is not supported

It feels like there is some access issue to this network storage but I am not seeing the issue.  I can from this same machine create files on the storage device.

CSV / VHDX support for Windows 2008 R2 clustered virtual servers with Windows 2012 R2 Host servers

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Hi

We have configured 2 X windows 2008 R2 virtual servers in Failover clustering with Windows 2012 R2 Data Center - hyper V clustering and it's working fine. This is the first time we configured the HV clustering along with Guest clustering. We are using CSVs& VHDx format virtual disks for guest servers OS and applications. Also configured another 2 X VHDx for guest failover cluster shared disks and fail over cluster wizard failed to identifiy these as shared disks and once we installed the Windows 2012 R2 integration services on both virtual servers we wrere able to configure fail over virtual server clustering and then we installed SQL clustering. Here our concerns are whether Windows 2008 R2& SQL 2008 R2 are supported in above configuration?

Thanks in advance for your valuable comments


LMS

Pooling CPU and Memory from Multiple Physical Servers

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I am looking at migrating to Hyper-V and wondered if I would be able to cluster or pool my existing physical servers with Hyper-V 3 and pool the CPU and memory resources together vs having virtual servers mapped to specific physical hosts.

Virtual Machine With vNIC in Promiscuous Mode - Hyper-V 2012 R2

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Dear Hyper-V Team,

Would be possible please to configure a virtual NIC inside a Virtual Machine in Promiscuous Mode?


I need to deploy Websense web filter and the requirement is two have two NICs, one NIC with IP and the second NIC without IP as promiscuous mode to monitoring the traffic (filtering).

I have Websense installed on a physical server, but I would like to virtualize it.
I checked with Websense and they said that Hyper-V 2012 is supported, but regarding the vNIC configuration in promiscuous mode we need to consult the Hyper-V team.

Usually in physical scenario, I configure the Cisco switch with the monitoring cmdlet with source and destination interfaces.

monitor session 1 source interface Gi0/36
monitor session 1 destination interface Gi0/46

The destination interface is the NIC configured in promiscuous mode in the physical server.

Your support is highly appreciated.

Thank you in advance.

Kind regards,


Regards,

how to add Hyper-V 2012 R2 server to Hyper-V 2012 Cluster

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Hi,

I am wondering if I could add a Hyper-V 2012 R2 server to an existing Hyper-V 2012 cluster ?


Reza Negarestani

Guest Asset Tag

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Hi,

Is it possible to change the guest asset tag from the auto generated one?

<asset_tag type="string">5924-0623-9773-3287-0532-6775-58</asset_tag>

Thanks,

Server 2012 Gen 2 VM hosted on Server 2012 R2 Hyper-V Host incompatible with Integration Services after Windows update

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If you take a Server 2012 R2 Host and update it, and then setup a Server 2012 and 2012 R2 Virtual Machines on it with the latest Integration Services.  Setup SR-IOV on both VMs.  Everything will be ok in the Integration Services status, but when you update the Virtual Machines, the Server 2012 R2 will continue to report that it's up to date.  But the 2012 will show that it needs it's Integration Services updated, when it's already running the latest Integration Services.  I'm not sure which update it is that is causing the conflict, and don't have the time to install 60 of them 1 by 1 to figure it out. 

Modifying the asset tag of virtual system in Hyper V 2012

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We have a requiement to modify the assetTag of virtual machine in Hyper V 2012 programmtically.

As per documentation have used the ModifyVirtualSystem method of Msvm_VirtualSystemManagementService class. But this throwing exception as invalid parameter.

Any suggestions why the api is not working as expected



c

Windows Server 2012 R2 Hyper-V host virtual switch MAC conflict

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Hi there,

I am having some issues with the Hyper-V 2012 R2. I have installed Hyper-V role, created a NIC team and then created a virtual switch. Event log show a MAC conflict: A port on the virtual switch has the same MAC as one of the underlying team members on Team Nic Microsoft Network Adapter Multiplexor Driver

How can i fix this?

Log Name:      System
Source:        Microsoft-Windows-MsLbfoSysEvtProvider
Event ID:      16945
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Description:
MAC conflict: A port on the virtual switch has the same MAC as one of the underlying team members on Team Nic Microsoft Network Adapter Multiplexor Driver
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-MsLbfoSysEvtProvider" Guid="{387ed463-8b1b-42c9-9ef0-803fdfd5d94e}" EventSourceName="MsLbfoProvider" />
    <EventID Qualifiers="32768">16945</EventID>
    <Version>0</Version>
    <Level>3</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2013-11-14T19:04:14.912231300Z" />
    <EventRecordID>5055</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="5796" />
    <Channel>System</Channel>
    <Security />
  </System>
  <EventData>
    <Data Name="DriverObject">
    </Data>
    <Data Name="Member">Microsoft Network Adapter Multiplexor Driver</Data>
  </EventData>
</Event>

AzMan replacement in 2012 R2

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Since the removal of AzMan in 2012 R2, what apart from the local Hyper-V Administrators group can we use? I need to limit access to a Hyper-V server.

Using a network share

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I have server connected to a SAN but it's out of RAM and I like to use the space for more Hyper-V VM's.  Is there a way to expose the resources on the SAN as a local resource to a server with more RAM?  I've tried mapping but they don't show up as a local resource and I've tried linking but it errors out with permissions problems even though I logged in as the domain admin.

RemoteFX ERRO43

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Hi.

I have a DELL T420 with Nvidia Quadro K600 video card on it.

I installed the Win Server 2012 OS + HyperV +  Win8 Enterprise 64bits VM.

The Win8's "Device Manager"  shows the following message::

Windows RemoteFX Graphics Device - WDDM: (Code 43) Windows has stopped this device because it has reported problems 

Does anyone knows why?

Trouble recovering virtual servers

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My virtual server crashed, but I was able to get it going again. But...all the VMs show as Saved-Critical. I figured no big problem as I do have Windows backups. I booted from the DVD and ran the recovery, but after it finishes and reboots, I get a boot failure - no boot device found.

I have the original VHDs, is it possible to just build new VMs and use these drives? Any other suggestions?

Thanks.

Memory demand does not match with the Used Ram shown inside the VM

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Hello,

I have enabled dynamic Memory for a guest VM on a Windows 2008 R2.

Now, "Memory Demand" shown in the Hyper-V Manager never matches the "Used Ram" that can be seen from "Task Manager" from inside the VM.

Please explain this behavior and from where can I get exact RAM used for a VM from host ?

Thanks.


Windows Server 2012 Hyper-V - Query total memory on guest with dynamic memory

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Is there a way to know, from the guest VM, the maximum memory configured for a VM in Windows Server 2012 Hyper-V?

Paulo Morgado

Win Server 2012 datacenter OEM hyper-V host with Windows 2012 Std VM - activation/installation

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Hi,

I have bought a Dell R620 with Server 2012 Datacenter OEM (no R2 version). The dvd I've received from dell has only the datacenter version available. There is also only a sticker on the chasis of the server with datacenter product key.

The datacenter is working as hyper-v host.

For the VM I want to install the 2012 Standard OS, but how since there is no system installation disk? The licence allows me to install any server OS up to 2012 datacenter as VM.

I tried even to downloadWindows Server 2012 Standard Evaluation but it don't want to activate with the Datacenter OEM product key.

Also the trick with DISM /online /Set-Edition:ServerStandard /ProductKey:OEMDatacenterKey /AcceptEula doesn't work with error 1605 - The specified product key is not valid for the target edition.

How can I manage/solve the problem?

Best regards

Marcin

Live Migration failed using virtual HBA's and Guest Clustering

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Hi,

We have a Guest Cluster Configuration on top of an Hyper-V Cluster. We are using Windows 2012 and Fiber Channel shared storage.

The problem is regarding Live Migration. Some times when we move a virtual machine from node A to node B everything goes well but when we try to move back to node A Live Migration fails. What we can see is that when we move the VM from node A to B and Live Migration completes successfully the virtual ports remain active on node A, so when we try to move back from B to A Live Migration fails because the virtual ports are already there.

This doesn't happen every time.

We have checked the zoning between Host Cluster Hyper-V and the SAN, the mapping between physical HBA's and the vSAN's on the Hyper-V and everything is ok.

Our doubt is, what is the best practice for zoning the vHBA on the VM's and our Fabric? We setup our zoning using an alias for the vHBA 1 and the two WWN (A and B) on the same object and an alias for the vHBA 2 and the correspondent WWN (A and B). Is it better to create an alias for vHBA 1 -> A (with WWN A) and other alias for vHBA 1 -> B (with WWN B)? 

The guest cluster VM's have 98GB of RAM each. Could it be a time out issue when Live Migration happen's and the virtual ports remain active on the source node? When everything goes well, the VM moves from node A with vHBA WWN A to node B and stays there with vHBA WWN B. On the source node the virtual ports should be removed automatically when the Live Migration completes. And that is the issue... sometimes the virtual ports (WWN A) stay active on the source node and when we try to move back the VM Live Migration fails.

I hope You may understand the issue.

Regards,

Carlos Monteiro.

Import-VM wrong disk path

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Running into a "small" issue when migrating VM's to a new hyper-v host image.

I had hyper-v running from a USB drive/stick. Due to issues with the network drivers I thought it would be best to start with a clean hyper-v image again. The server is now booting from this new image without any issues but I am unable to import the existing VM's (they are in a saved state).

PS E:\> Import-VM -Path 'E:\shares\hyperv\sv-win-dc01\Virtual Machines\E148B999-7F6C-4464-B45D-A19170BF601F.xml'

Import-VM : Unable to import virtual machine due to configuration errors.
Please use Compare-VM to repair the virtual machine.


PS E:\> $report.Incompatibilities | Format-List


Message   : Virtual Hard Disk file not found.
MessageId : 40010
Source    : Microsoft.HyperV.PowerShell.HardDiskDrive

Message   : Virtual Hard Disk file not found.
MessageId : 40010
Source    : Microsoft.HyperV.PowerShell.HardDiskDrive

PS E:\> $report.Incompatibilities[0].Source | Format-List


DiskNumber                    :
SupportPersistentReservations : False
MaximumIOPS                   : 0
MinimumIOPS                   : 0
ControllerType                : SCSI
ControllerNumber              : 0
ControllerLocation            : 3
Name                          : Hard Drive on SCSI controller number 0 at location 3
PoolName                      : Primordial
Path                          : E:\shares\hyperv\sv-win-dc01\Virtual Hard Disks\sv-win-dc01_data.vhdx
Disk                          :
ComputerName                  : SV-WIN-HYPER01
Id                            : Microsoft:E148B999-7F6C-4464-B45D-A19170BF601F\E6B4069B-005B-442D-A63A-2D5DCD9DF13D\0\3\D
IsDeleted                     : False
VMId                          : e148b999-7f6c-4464-b45d-a19170bf601f
VMName                        : sv-win-dc01
VMSnapshotId                  : 00000000-0000-0000-0000-000000000000
VMSnapshotName                :
Key                           :


PS E:\> $report.Incompatibilities[1].Source | Format-List


DiskNumber                    :
SupportPersistentReservations : False
MaximumIOPS                   : 0
MinimumIOPS                   : 0
ControllerType                : SCSI
ControllerNumber              : 0
ControllerLocation            : 4
Name                          : Hard Drive on SCSI controller number 0 at location 4
PoolName                      : Primordial
Path                          : E:\shares\hyperv\sv-win-dc01\Virtual Hard Disks\sv-win-dc01_backup.vhdx
Disk                          :
ComputerName                  : SV-WIN-HYPER01
Id                            : Microsoft:E148B999-7F6C-4464-B45D-A19170BF601F\E6B4069B-005B-442D-A63A-2D5DCD9DF13D\0\4\D
IsDeleted                     : False
VMId                          : e148b999-7f6c-4464-b45d-a19170bf601f
VMName                        : sv-win-dc01
VMSnapshotId                  : 00000000-0000-0000-0000-000000000000
VMSnapshotName                :
Key                           :

The VM config file (xml) contain the correct path's to these vhdx files:

<drive3>
        <iops_limit type="integer">0</iops_limit>
        <iops_reservation type="integer">0</iops_reservation>
        <pathname type="string">F:\shares\hyperv\sv-win-dc01\virtual hard disks\sv-win-dc01_data.vhdx</pathname>
        <persistent_reservations_supported type="bool">False</persistent_reservations_supported>
        <type type="string">VHD</type>
        <weight type="integer">100</weight>
      </drive3>
      <drive4>
        <iops_limit type="integer">0</iops_limit>
        <iops_reservation type="integer">0</iops_reservation>
        <pathname type="string">g:\shares\hyperv\sv-win-dc01\Virtual Hard Disks\sv-win-dc01_backup.vhdx</pathname>
        <persistent_reservations_supported type="bool">False</persistent_reservations_supported>
        <type type="string">VHD</type>
        <weight type="integer">100</weight>
      </drive4>

Please note that the vhdx files were NOT moved during the hyper-v image migration. So does anyone have any idea why Import-VM is incorrectly expecting these vhdx files to be residing on drive E:\ ?

Thank you in advance.

Windows Server 2012 Hyper-V : External Network Connection Failure On Virtual Machines

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Hello Members

(I am a VMware guy. First attempt at a Hyper-V Deployment).

Here is a brief outline of my new Hyper-V infrastructure which has been setup for a very small branch office:

  1. 1 HP DL380p G8 Rackmount. 2x Intel Xeon Quadcore Procs. 32GB RAM. 4 Port 1GBps NIC.
  2. IBM Storwize v3700 iSCSI SAN. 4x 500 GB SAS Drives on RAID5.
  3. Microsoft Windows 2012 Hyper-V. This is standalone with no clustering at the moment.

*********************************************************

Here's the Hyper-V Networking Design which has been currently configured between the HP Host and the IBM SAN

  1. 2 NIC Cards TEAMED for Service LAN and Hyper-V Management.
  2. 2 NIC Cards TEAMED for iSCSI SAN Connectivity.
  3. NIC TEAM configured for Service and Management is on 10.40.0.0 /16 Subnet & configured with 10.40.0.1 gateway
  4. NIC TEAM configured for iSCSI is on 10.50.0.0 subnet with no gateway.
  5. NIC Ports configured on the IBM SAN are on 10.50.0.0 subnet with no gateway.
  6. The Switch to which both the HP Server and the IBM SAN connects is on the universal VLAN (default).
  7. The Switch is connected to an uplink router (10.40.0.1)
  8. Hyper-V vSwitch is connected to the Service LAN TEAM (MS Network Driver Multiplexor Driver).
  9. Hyper-V VMs are configured with Dynamic MACs (default) and Hyper-V Integration Services.

*********************************************************

Here's the issue i am currently encountering

  1. The 1st Virtual Machine boots up. IP is Static and belongs to 10.40.0.0 subnet. NIC connectivity to the External network and Internet is fine.
  2. The 2nd Virtual Machine boots up. IP is Static and belongs to 10.40.0.0 subnet.NIC connectivity to the gateway fails and times out. No connectivity to the internet as well (understandably).
  3. I power the 2nd virtual machine OFF followed by the 1st.
  4. I power on the 2nd Virtual machine first. IP is Static and belongs to 10.40.0.0 subnet. NIC connectivity to the External network and Internet is fine.
  5. I power on the 1st VM following the 2nd VM. IP is Static and belongs to 10.40.0.0 subnet. NIC connectivity to the gateway fails and times out. No connectivity to the internet.

*********************************************************

I researched the Forums and the KBs.

  1. Few of the forums suggest that this is an issue with MAC Address Filtering being 'enabled' on the switch.
  2. Can anyone confirm if this could be the problem or should i be looking somewhere else ?
  3. If it is indeed the issue, is this feature (MAC Address Filtering) configured on a Switch or a Router (I am not a networking guy) ?
  4. Also - if someone could guide me on how i could disable this feature on the switch/router (i will have to find out the priviledge mode password and everything for the router/switch i believe).

I am running on a tight schedule here (when are we not .. ? )

THANKS A LOT TO ANYONE WHO COULD HELP!


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