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High Latency rate in VM's running on Windows server 2012 Hyper V core

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Dear all.

High Latency  rate in VM's running on Windows server 2012 Hyper V core . When I ping to server , I get high latency.I have disabled the VMQ as well as updated the drivers & firmware of Network card

Physical host model : Dell R 720

VM OS : Windows server 2012 R2

Many Thanx

Amol


VMSMP warning event id 28 on 2008 R2 with Hyper-V

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I am using a HP ProLiant DL380 G6 with a full install of the 2008 R2 Datacenter, the only role added is Hyper-V. There is 4 integrated NICs on the server, I also added a Quad port adapter. One nic is for the host, the rest is dedicated to virtual machines (no config on the host OS - apart from disabled Offload). All virtual networks have not checked the box for allowing the host OS to share the adapter, all machined using dynamic MAC-addressing. All Hp agents installed - apart from HP network config utility.

All virtual machines works pretty well, but all of them have short stops in network traffic. One virtual machine is a terminal server (or Remote Desktop Server) serving 10-15 users. All users are pretty annoyed with the fact that the server often stops responding for a few secs, and then continues as normal. Sometimes the server disconnects the RDP connection and the users have to log in all over again. Another physical server is running Backup Exec - but all backup jobs ends up with a communication error to remote agents on virtual servers (sometimes also the host has these errors).

The system log is filled with this and simular events:

Port 'SWITCHPORT-SM-6B477375-B522-4704-9998-79103BFE3F34-3-1' was prevented from using MAC address '00-15-5D-0F-30-08' because it is pinned to port '187215F7-4AC9-4ACF-8'.

I have double and triple checked the mac address config, but all virtual machines have unic addresses - and none colliding with any other adresses on the network. The switch in place is a HP ProCurve gb unmanaged 24 port - seems to work OK.

All these warnings in my host's system log seems to to actually log an error - as the VM's loose network connection at the same time as the log is generated. 

As most search engines are focusing on the duplicate mac adress problem, I am having a hard time working this out.. 

 

Any ideas?

 

Hyper-V Networking Issue

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I have a Windows 8.1 Pro with Media Center Computer - The computer works perfectly fine/normal until I install Hyper-V.

Once I install Hyper-V the Windows Store and any of the apps do not detect an internet connection; in desktop mode the internet is working normally and in the Network Connections I can see the virtual network adapters as connected to my wireless network and I can see a virtual switch that is connected to it. The Windows Phone adapter is stuck on identifying.

The internet works fine in the Windows Phone Emulator despite being stuck on identifying in Network Connections but it does not work inside a Windows 10 virtual machine even though I am using the same virtual adapter as my computer, in Windows 10 the adapter shows as identifying, If I try troubleshooting it cannot find any problems, I cannot ping to anything except 127.0.0.1.

I have tried every type of Windows Store troubleshooting you could possibly imagine, from wsreset.exe to running the AppsDiagnostic.diagcab file.

The only reason I am posting here is because of the VM for Windows 10 didn't work I thought I'd try removing and re-adding Hyper-V; I realised that once I had removed Hyper-V the Windows Store started working again. 

After reinstalling Hyper-V I fiddled around with the virtual adapters such as ticking every box but this did not make a difference.

I have also tried deleting the virtual adapters from Network Connections but the Windows Store still did not work. I have then tried re-adding the virtual adapters but still the Windows Store/apps and VM don't detect an internet connection.

I have tried searching online for a solution for this problem but I cannot seem to find a way to troubleshoot this I do not know what the connection between Hyper-V and the Windows Store/apps could be to cause this fault. I think this must be some kind of networking issue but I don't know where else I can look besides Network and Sharing Center.

I have also tried updating the networking adapter on my computer but it does not find any updates.

I would like to just not use Hyper-V and use a different program but Visual Studio 2013 Professional tells me that I need Hyper-V installed for the Windows Phone Emulator to work, so I need to find a way to fix this problem.

I hope that I have been descriptive enough for someone to know what the issue is, hopefully it is something really simple.


Pepsi-Josh

manual replication after initial replication

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Hi,

I have a Hyper-V server with multiple VM's replicating over VPN to a replica Hyper-V server.  I have it setup to replicate every 5 minutes.  All is well.  One of the VM's on my Hyper-V server is a backup server.  I have backup software that I install on a client's server or workstation that backs up locally and then uploads the backup over the internet to my backup server [I can seed the software's initial backup manually much like the initial replication of the Hyper-V replica].

So when I sign up a new client and setup the backup, I could have upwards of 60GB or so of data that gets written to the backup server VM.  When I do this it can take a week for the replication to finish when there has been 60GB of data added to the VM.  Is there a way to pause replication, and manualy export a replication to an external HD, then import the replacation to the replication server, then resume replication?  like when we do the first replication manually to a remote server? 

Or am I going to have to remove replication [on both servers], delete the replica VM, then enable replication again and do a manual initial replication?

Thanks for any input!!

Rob

SCVMM R2 - "Incomplete VM configuration" and other bugs like "failed" status

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Noticed a lot of machines in SCVMM go into an irreversible "INCOMPLETE VM CONFIGURATION" status.  All options to manage the machine are then grayed out.  A couple options like "repair" and "refresh" are available, neither of which solves the problem.  These machines are up and running with no related errors in our Hyper-V cluster.  There is also one in a "failed" status with the same symptoms.  

When is this bug in SCVMM going be fixed?  This is supposed to be enterprise VM management software?  Right now, I can't even manage 10 virtual machines with SCVMM because of a BUG.  I have to go to the failover cluster manager or the Hyper-V manager.  

I really don't want to wipe out the entire cluster from SCVMM and readd it, because removing the cluster from management uninstalls the SCVMM agent on all servers.  Needless to say, adding the cluster back to SCVMM management would (ridiculously) require a reboot of all servers in the cluster to "reclaim storage."  Just confirmed that this will happen in my test environment.

If there is a supported way to fix this, please let me know. 

I am by far not the only person that has noticed this problem (try google), but there are no good supported solutions out there.   



Help with domain migration of a HyperV ( csv ) CLUSTER on Windows 2008R2

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Hello everyone ,

In our environment we have 3 physical machines running Windows 2008 R2, under the " domain.local ";

Server1 -> Primary Domain Controller

Server2 -> Node 1 of cluster Hyper V

Server 3 -> Node 2 Cluster Hyper V

Server 2 and Server 3 share CSV storage mode , and contain multiple virtual machines


We need to migrate all machines to a new domain , but I'm very lost on how to do and not lose the cluster. Can anyone help me and tell me please  the steps to migrate this environment from the old domain to the new domain ?


do i have mount a parallel cluster in the new domain and then, migrate one by one all the virtual machines?


Thank you very much , any help is welcome

How to P2V RedHat 5.1 to Hyper-V 2012 R2

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I can P2V a Windows server using SCVMM or even just by making an image with Disk2VHD.  How can I P2V a RedHat 5.1 server to Hyper-V 2012 R2?

Slow Read/Write from Guest to Host

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Hi we're running Server 2012 R2 on a Dell Server with SAS drives.

The host is only hosting 1 VM which is used for Remote Desktop Services.

The VM is hosted locally on the disk, not on a network drive.

Reading / Writing from the HOST to the GUEST is Writing 1,573.1015360 Mbps & Reading is 1,539 Mbps

Reading / Writing from the Guest to the HOST is Writing 411 Mbps & Reading is 710 Mbps


We're using the latest drivers, etc. I cannot figure out how to get the speed to improve from Guest to HOST, while host to guest is perfect.


Migrate from server core 2008 r2 hyper-v with failover cluster volumes to server core 2012 r2 hyper-v with failover cluster volumes on new san hardware

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We are getting ready to migrate from server core 2008 r2 hyper-v with failover cluster volumes on an iscsi san to server core 2012 r2 hyper-v with failover cluster volumes on a new iscsi san.

I've been searching for a "best practices" article for this but have been coming up short.  The information I have found either pertains to migrating from 2008 r2 to 2012 r2 with failover cluster volumes on the same hardware, or migrating to different hardware without failover cluster volumes.

If there is anyone out there that has completed a similar migration, it would be great to hear any feedback you may have on your experiences.

Currently, my approach is as follows:
1. Configure new hyper-v with failover cluster volumes on new SAN with new 2012 r2 hostnodes and 2012 r2 management server
2. Turn off the virtual machines on old 2008 r2 hyper-v hostnodes
3. Stop the VMMS service on the 2008 r2 hostnodes
4. copy the virtual machine files and folders over to the new failover cluster volumes
5. Import vm's into server 2012 r2 hyper-v.


Any feedback on the opertain I have in mind would be helpful.

Thank you,

Rob

Hyper V 2012 Backup - best practice

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I'm setting up a new Hyper-V server 2012 and I'm trying to understand how to best configure it for backups and restores usingWindows Server Backup. I´ve 5 VMs running, everyone has their one iScsi drive.

I would like to backup the VMs on a external usb disk. I´ve the choice to backup the Hyper-V using child partition snapshot or to backup the vm folder with the config and the vhd files (is is right, that Windows override the old backup ?)

What´s the difference between the two methods ?  Is incremental back possible with vm´s ?

thanks

Hyper-V Clustered VM Available Memory Enormous, VM stopped

Replication Between Hyper-V Cluster and StandAlone Hyper-V

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Hi Members,

We have IBM Blade S having three computes named as CS1 , CS2 , CS3 each computes installed with Windows Server 2012 R2 Hyper-V Cluster.

I Also have One HP Server installed Windows server 2012 Hyper-V at DR Site (DR)

Now I want to enable replication between one VM of CS3 on DR Site.

To Do This I do following steps

Allow HTTP Hyper-V Replica Traffic on Both Servers (DR and CS3)

Allow CIFS and Microsoft virtual machine services at AD object of DR and CS3

Configure Hyper-V Replica Broker Role on CS3 Provide it IP

Event id 1194

Cluster network name resource 'DR-Replication' failed to create its associated computer object in domain 'csaplho.pk' during: Resource online.

The text for the associated error code is: Access is denied.


Please work with your domain administrator to ensure that:
- The cluster identity 'CS-CLUSTER$' has Create Computer Objects permissions. By default all computer objects are created in the same container as the cluster identity 'CS-CLUSTER$'.
- The quota for computer objects has not been reached.
- If there is an existing computer object, verify the Cluster Identity 'CS-CLUSTER$' has 'Full Control' permission to that computer object using the Active Directory Users and Computers tool.
Event ID 1069
Cluster resource 'DR-Replication' of type 'Network Name' in clustered role 'DR-Replication' failed.

Based on the failure policies for the resource and role, the cluster service may try to bring the resource online on this node or move the group to another node of the cluster and then restart it.  Check the resource and group state using Failover Cluster Manager or the Get-ClusterResource Windows PowerShell cmdlet.

Event ID 1069

Cluster resource 'DR-Replication' of type 'Network Name' in clustered role 'DR-Replication' failed.

Based on the failure policies for the resource and role, the cluster service may try to bring the resource online on this node or move the group to another node of the cluster and then restart it.  Check the resource and group state using Failover Cluster Manager or the Get-ClusterResource Windows PowerShell cmdlet.

Issue :

  1. As Per Above Screen Shot I am not able to start DR-Replication
  2. What is the Correct method for enable replication between hyper-V Cluster one VM and Standalone Hyper-V Server

Pls Help

Hyper V 2012 Failover Cluster Physical Switch Failure

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So I have a 3 node cluster of Hyper V 2012 Servers.

They are connected to a stack of switches.  All physical network connections are run through this stack.

I need to take the switch stack down for a few minutes to update the firmware. The switches will be 100% down. 

Will the Virtual machines be ok, other then being inaccessible during the firmware update?

Or will I have to shut down the failover cluster, update the switches, then bring the cluster back up?  I'd like to avoid that if possible...

Hyper-V administration

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Hi,

I would like to install Hyper-role with a Server Core installation. I saw in technet : "It is important to note that Server Core cannot be managed locally using traditional graphical user interfaces (GUIs) such as Server Manager" and in the Hyper-V security guide, it is noted that : "Remote administration consoles and specialized WMI command-line scripts are required to manage the server"

Does-it mean that it is not possible to manage locally via commmand line interface too ?

Thanks in advance.

Martin

P2V of UEFI server

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Hi,

I have a server with windows 2008R2 and that server is having a GPT parition (UEFI). i want to convert this server to virtual.

I am using DisktoVHD utility. But my Vm could able to boot from that converted vhd.

Is there any way to P2V for this scenario.

Thanks


V2P Hyper move for SQL Server

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All:

I have a Hyper V host with one, and only one VM.  That VM hosts SQL Server for the ERP system.  I want to move the SQL VM onto a physical box and I want it to be the same box in which it came.  In other words, I want to take the VM out of the host server, get rid of the Hyper V on that box, Install SQL server onto that box, then restore the database back onto that box.  What am I missing

VMWare ESX VM migration to Microsoft HyperV Cluster

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All,

I have the following setup prepared to migrate VM based on VMware ESX server to HyperV Cluster - Windows 2012R2

# HyperV clusters has three nodes based on Cisco Servers with 300 GB local storage used to install OS windows 2012 R2.

# Storage - CSV file system with 1 TB used to storage VM

We have created the HyperV cluster and it is working fine.

Now issue we are facing in VM migration by using MVMC 3.0 that while migration it is asking shared storage on HyperV host

and that we do not have it.  So my question is how Can I resolve this issue...

I checked and I cannot share the C:\ClusterStorage\Volume1 (Where CSV volume)

How Can I  use CSV file system for the same...

Other option available is to have new LUN to specific HyperV host from storage and then used it to convert ESX VM to HyperV VM and then migrate the VHDX file of that VM to CSV volume to have VM as Highly available.

Thanks

Vijay Dalimkar

 


Vijay Dalimkar VCP,MSTS,MCITP,SCSA


import from windows 2008 to windows 2012

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Hello;

I have a windows server 2008 R2 with 2 HPV servers, I have installed a new windows 2012 R2 std server, and would like to move the HPV from 2008 to the new 2012.

I have exported the HPV servers, but when I try to import, I get the error " Hyper-V did not find virtual machines to import from the location"

I am looking for a way to do this, there is a lot on the web, but non that have worked for me?

thx

Best way to assign NICS on home lab server

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I have a small Hyper-V lab which I use to run my home network and play around with. My main server currently runs three VMs:
VM1 - Secondary Domain Controller, DHCP, DNS & WINS
VM2 - File Server, SQL, ArgusTV, Cert Authority
VM3 - Plex
My main storage is via iSCSI to a NAS drive, and all devices access the storage files via file sharing with VM2. Only mobile devices access the Plex server. I have a total of 6 Intel NICs which include 2 motherboard and 4 PCIe. Currently I have a teamed 1 NIC from each adaptor which I run the host and VMs from, and have setup the two other NICs (1 from each adaptor) in a direct connection to my NAS. I had originally intended to keep the other 2 NICs spare for a firewall, but have decided to have dedicated hardware rather than run it in a VM.

I'm now considering how to reconfigure my NICs to optimise performance and my thoughts are:
MB NIC1 - Pass through to VM2 and team under guest
MB NIC2 - iSCSI SAN (directly connected to my NAS)
PCIe NIC1 - Pass through to VM2 and team under guest
PCIe NIC2 - iSCSI SAN (directly connected to my NAS)
PCIe NIC3 - Virtual Switch for VM1 & 3
PCIe NIC4 - Hyper-V Host Management
Do I create an internal virtual switch so that the VMs can network directly with each other rather than going out via the switch?

Do the interfaces on the internal virtual switch require need their own VLAN or subnet?

Am I better off letting the host manage the MB NIC1 and PCIe NIC1 team and connecting all VMs to an external virtual switch on this team instead?

Is there a better way of doing this?

Hyper-V Server 2012 or Server 2012 R2 w/ Hyper-V?

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Hello everyone, is there a recommended way of implementing this? I'm not too certain what the advantages or disadvantages are for using one over the other. 

We are currently and ESX shop and are considering migrating to Hyper-V, before doing so however I would like to see what our options are and which is the best route to take.

Any thoughts on using Hyper-V Server 2012 over Server 2012 R2 w/ Hyper-V?

Thanks!

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