Hyper-V Replica Machine Storage

May 1, 2013, 1:12 pm

≫ Next: Hyper-V Replica Broker stuck in "Failed" status.

≪ Previous: Server 2012 NIC Team and Hyper-V Switch

Hello,

I have two sites with a unique Hyper-V Cluster at each site. At each of the sites I have two CSV's, neither of which is large enough to hold all of my virtual machines. I would like to setup Hyper-V Replica so that if I have a failure at either site I can spin up my virtual machines.

When configuring Hyper-V Replica Broker I can add the Replica Broker Name as an authenticated server and choose a default location for the machines to be stored. But how do I configure it so that half of my machines are replicated to one CSV and half to the other? Can I add in the individual names of the Hyper-V Clustered Servers? But even if I could add them how can I ensure that the individual machines will always end up in the correct spot? Filling up a CSV leads to bad behavior.

Any thoughts on how can I get around? If you pre-stage the files can you use different replica locations?

Thank you,

Matt

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Hyper-V Replica Broker stuck in "Failed" status.

May 1, 2013, 2:55 pm

≫ Next: WINDOWS 2012 HYPER V BACKUP ERROR 153

≪ Previous: Hyper-V Replica Machine Storage

2 2012 standard servers in a cluster. Trying to add the replica broker so I can have my HA VMs replicated off site as a DR solution. I've tried to install the role over a dozen times, with a dozen different names, no nice.

I've changed the OU security to include the cluster's computer having the rights to create computer accounts. I've even tried to "stage" a computer before adding the role but it just complains that it is already in use in active directory. I'm at the end of my rope as to why this isn't working.

I've done everything that has been suggested in these forums and the blogs I could find on google.

Any help would be great. Thanks guys!

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WINDOWS 2012 HYPER V BACKUP ERROR 153

December 17, 2012, 4:50 am

≫ Next: Windows Server 2012 Standard Hyper-V Host: Domain controller does not start, c00002e2 error occurs on Windows Server 2008 R2 SP1 Virtual Machine

≪ Previous: Hyper-V Replica Broker stuck in "Failed" status.

Hello all

I am currently finishing settin up a new env. for a customer, everything is ok except backup, i am currently backinup host and 3 vm on it.

i am receiving the following errors everytime the backup starts :

filter manager error id 3

volsnap error id 27

disk i/o error at logical bloc etc.. id 153

is everyone experiencing this ?

I already tried everything related to these knowns errors since they are quite famous in the windows history .. but no luck at the moment.

they only occurs if vms are on, if powered off backup runs fine.

however even with these errors backups finishes and restores are ok.

The bad part is that they are all related to the shadow that backup is mounting everytime for the procedure. (dont tell me to chkdsk my lun :) )

Thanks

Regards

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Windows Server 2012 Standard Hyper-V Host: Domain controller does not start, c00002e2 error occurs on Windows Server 2008 R2 SP1 Virtual Machine

April 26, 2013, 7:09 am

≫ Next: Hyper V Performance Server 2012

≪ Previous: WINDOWS 2012 HYPER V BACKUP ERROR 153

Hi everyone,

We have been deploying out 2012 Host Hyper-V servers and have started battling some periods of power outages that seem to link the cause of our 2008 R2 Domain Controller Virtual Machines to come back up with the following error (no save states or snapshots):

"Domain controller does not start, c00002e2 error occurs"

All previous hosts that have 2008 R2 as the Hyper-V host have had no problem coming back up on similar outages in which our UPS blink protectors could not handle.

We are using the VHDX format on 2012 and of course VHD on 2008 R2.

To add, we also have SCCM Virtual Machines on these same hosts, and which did not seem to be effected on the same outages. Only the virtual domain controllers seem to be affected.

Has anyone else run into similar situations as we have been stuck rebuilding Domain Controllers really often since this change over and are thinking of reverting back all hosts to Server 2008 R2.

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Hyper V Performance Server 2012

May 2, 2013, 6:29 am

≫ Next: VMC not refreshing

≪ Previous: Windows Server 2012 Standard Hyper-V Host: Domain controller does not start, c00002e2 error occurs on Windows Server 2008 R2 SP1 Virtual Machine

Hi,

I have a Windows server 2012 running as the host for Hyper V guest machines.

Server Specs;
1 x Xeon E5-2620, 32GB RAM, Raid5 (5x 256 Cruical M4 SSDs)

The Guest is designed to run simulations, the code written by our development team.
Each guest host only needs about 30-40GB of disk space.
The sims don't really touch IO its all CPU and RAM processing.
Specs of the guest server; 4 Cores, 8GB RAM, 40GB hhd, Debian 6.0.7 (linux-headers-3.2.23-hyperv_3.4_amd64.deb kernel - provided by Microsoft is installed to recognise the virtual hardware)

The current physical servers that these simulations run on are;
1 x Xeon E5410, 4GB RAM, 320GB Sata (Software RAID 1), Debian 6.0.7

Comparing this purely the specs on these systems, I would assume that there would be a significant performance increase.
However this is not the case, the guest virtual machine is running the code slower than the physical lower spec server.
I only have 1 guest setup at the moment, therefore all of the resources are available.

Just to make sure that it wasn't an issue with the code we have developed, I installed 'sysbench' on each server.
sysbench --num-threads=4 --test=cpu --cpu-max-prime=20000 run
Old Server:
Test execution summary: total time: 6.9186s

New Guest:
Test execution summary: total time: 9.8635s

Is anyone able to offer some ideas of how I can improve the performance? Could it be a debian issue?
I'm new to Hyper V and really just want to get the thoughts of other Hyper V users.

Let me know if I need to provide any more detail.

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VMC not refreshing

May 2, 2013, 8:51 am

≫ Next: Connecting a physical server to private network on Server 2012 Hyper-V host

≪ Previous: Hyper V Performance Server 2012

Hi. I use Windows Server 2012 and many VM's on this server.

And now i noticed, sometimes if i logn time not working with VM - display this VM is "pused". As example:
i run Windows Update and wait when it finish, but Windows Update paused. I still wait when finish install 2 updates - but long time never happens. And process-line have one position. When I get tired of waiting i go to VM and display switch to actually moment )

Is it possible to fix the display refresh? Because I can wait for hours (

Thank you!

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Connecting a physical server to private network on Server 2012 Hyper-V host

May 2, 2013, 11:23 am

≫ Next: Problem using live-migration on Shared-Nothing.

≪ Previous: VMC not refreshing

Hello,

I am new to Hyper-V so please bare with me as I try to explain what I am trying to achieve.

I’m trying to create a Server 2012 VDI test lab so I can test out the RDS. I have one hardware server running Server 2012 Hyper-V OS (no gui) with one NIC card. I created the Windows Server 2012 Test Lab Base Configuration as outlined herehttp://technet.microsoft.com/en-us/library/hh831585. As I found out, I cannot install the RD Virtualization Host Server on a VM because you cannot embed VMs in a VM. The lab I’m trying to create uses a Private Virtual Switch so the VMs are not connected to our local LAN.

Is it possible to connect another physical server (in my case the Server 2012 RDS host) to the Private Virtual Network on my Server 2012 Hyper-V server?

Thanks in advanced for your help.

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Problem using live-migration on Shared-Nothing.

January 8, 2013, 1:29 am

≫ Next: Unable to Connect to Guest Console (Virtual Machine Connection) via Hyper-V Console

≪ Previous: Connecting a physical server to private network on Server 2012 Hyper-V host

I am trying to do a live migration between two Hyper-V 2012 hosts:

From Workload5 -> Workload4

When i try to migrate i get the following error:

Virtual machine migration operation failed to migration source.
Failed to establish a conection with host 'WORKLOAD4' No credentials are available in the security package (0x8009030E)....

On both servers live migration is enabled using kerberos, and the AD delegation are created for both machines:

For Workload4, the following services has been added for workload5:

cifs, Hyper-V Replica Service, Microsoft Virtual System Migration Service, RestrictedKrbHost

This is for workload4, the same (but other direction is done with workload5).

In the event log i get 3 errors:

- Failed to receive data for a Virtual Machine migration: An existing connection was forcibly closed by the remote host. (0x80072746).

- 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).

- The Virtual Machine Management Service blocked a connection request for a Virtual Machine migration from client address '10.3.1.60': An existing connection was forcibly closed by the remote host. (0x80072746).

I must say, i don't get that much of this, so i hope you can help troubleshoot...

On another note, i am able to use replication..

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Unable to Connect to Guest Console (Virtual Machine Connection) via Hyper-V Console

January 22, 2009, 6:22 am

≫ Next: Time Services and Virtualized Windows Server 2012 DC's

≪ Previous: Problem using live-migration on Shared-Nothing.

I am at a loss and need some help.

I have a (2) node HA Hyper-V cluster running the full OS (not Core). While logged into the physical node with a domain admin account, i open the Hyper-V console and look at my Guest VMs i can see the status in the preview windows. If i try to open a connection to the guest (Virtual Machine Connection) after about 3-5 min i get one of the following error messages.

Error1:
"Cannot connect to the virtual machine. Try to connect again. If the problem persists, contact your systems administrator."

OR

Error 2:
"Timed out while trying to connect to the virtual machine. Try to connect again. If the problem persists, contact your systems administrator."

I have read the John Howard blog and checked all the dcom / wmi permissions and all seem right. Again i am having this issue on the Hyper-V server itself.

http://blogs.technet.com/jhoward/archive/2008/03/28/part-1-hyper-v-remote-management-you-do-not-have-the-requested-permission-to-complete-this-task-contact-the-administrator-of-the-authorization-policy-for-the-computer-computername.aspx

Hopefully someone can point me in the right direction.

Thanks.
Jason.

Jason

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Time Services and Virtualized Windows Server 2012 DC's

May 2, 2013, 11:57 am

≫ Next: Fixed disk - zero'd blocks for security and performance

≪ Previous: Unable to Connect to Guest Console (Virtual Machine Connection) via Hyper-V Console

I am finding what seems to be a lot of mixed recommendations for handling time synchronization on virtualized domain controllers and am not exactly sure which recommendations to follow.

For example, http://social.technet.microsoft.com/wiki/contents/articles/12709.time-services-for-a-domain-controller-on-hyper-v.aspx seems to indicate that Time Service Integration should be left (at least partially) intact between the DC and Hyper-V whilehttp://technet.microsoft.com/en-us/library/dd363553%28v=ws.10%29.aspx seems to indicate that I should disable Time Service Integration completely. However with the 2nd link it is unclear whether or not it applies to Windows Server 2012 or not (the beginning of the article states "This topic will be updated in order to make the guidance applicable to Windows Server 2012.")

I have two Hyper-V 2012 Servers each running a Windows Server 2012 virutalized domain controller, one is the primary for our network and the other is a secondary. What are really the best practices for configuring time synchronization for primary and secondary Windows Server 2012 based virtualized DC's?

Thanks in advance.

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Fixed disk - zero'd blocks for security and performance

May 2, 2013, 11:59 am

≫ Next: Error applying virtual network properties changes

≪ Previous: Time Services and Virtualized Windows Server 2012 DC's

Brian wrote:

Using VHDX it is no longer recommended to used fixed disks. Except in very specific and rare cases.

The thread refernced covers this pretty well.

Fixed VHD(x) creation speed is 100% dependant upon the speed of your disks. As each block is zeroed for security.

The quick create VHD utility you mention introduces a huge securty risk that the zeroing action avoids.

Since VHD and VHDX are distinctly different, the formats can be converted between each other, but they are not interchangeable (you can't just change the file extension and expect to spoof the system).

So if this is the case could someone explain how the overall amortization algoritme that dynamicly expand a vhdx file could perform just close to a fixed disk? - Recall that dynamic growth must also zero a block before expanding the file, if security should make sence:-> Its simply ridiculous to claim that a fixed sized disk does not perform better in any Operating System than a dynamic "secure formatted disk"! - To me it seems that due to Public Cloud fetish - MS prefer dynamic Disks - regardless of the peformance issues with this type of disks? - Could we get a *quick* creation option in the Private Cloud? (the one from R2 will do just fine) - Just to make our SQL servers run on optimal disks without spending a day on "zeroing blocks" - and let us do the hard algoritme of shrinking disks before uploading the VMM to the Public Cloud instead, Please?:->

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Error applying virtual network properties changes

May 2, 2013, 7:05 am

≫ Next: Stuck on Virtual Desktop Template, Virtual Desktops are not appearing in collections in Remote Desktop Services

≪ Previous: Fixed disk - zero'd blocks for security and performance

Hello,

I have a strange issue with virtual network. My server is System x3650 M4 and i have Hyper-V 2012 Core edition installed on it. I have 4 NIC's in it. I use one for management and one for VM's. Everything is working well until I want to enable VLAN identification for management operating system. Strange is that is greyed out if i don't have allow management.... checked. When I do that i get error message: Error applying virtual network properties changes. The operation on computer x.x.x.x failed. I can create virtual networks but can't enable vLAN.

Can someone help with this problem. I run updates for network cards but still getting this error.

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Stuck on Virtual Desktop Template, Virtual Desktops are not appearing in collections in Remote Desktop Services

May 2, 2013, 4:55 pm

≫ Next: Virtual hard drive creation on hyper-v

≪ Previous: Error applying virtual network properties changes

Hi I created a VDI Broker on a server and also installed Hyper-V onto another server running 2 Virtual Machines. I created a Windows 8 Template machine, ran sysprep on it and then shut it down. Now, after doing that, I went over to the VDI server, selected Remote Desktop services and then tried to create a collection however, NONE of my virtual machines appear in the collection, then when I went to collections and view my host servers, it shows that Hyper-V server has 0 Virtual Desktops when there are really 3 Virtual Machines on it? How do I fix this?

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Virtual hard drive creation on hyper-v

April 29, 2013, 6:43 pm

≫ Next: Virtual Storage Error Count report large number

≪ Previous: Stuck on Virtual Desktop Template, Virtual Desktops are not appearing in collections in Remote Desktop Services

I have a Hyper-v 2008 R2 standalone. Long time ago, I created 2 VMs and installed OSs on them. They are big drives, but I do not recall that creation of VHDs took excepptionally long. Now I want to create 3-rd. VM. However, this time, I am unable to create a VHD. I have tried both fixed and dynamically..., but it does not happen. I have waited many hours. The size of the drive is 200 GB. Maybe I forgot something, but it was unnoticeably easy in last 2 cases. I do not get any error message. When I check Hyper-V hard drive, I see the file being created, but with a little over 262,000 bytes and does not grow.

I'd appreciate some help. I have no problems with 2 VMs already running under this host.

Ali I. Naqvi

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Virtual Storage Error Count report large number

April 8, 2013, 6:28 am

≫ Next: Which one is better, Hyper-V or VmWare Workstation 9?

≪ Previous: Virtual hard drive creation on hyper-v

Hi,

I've win 2012 std with hyperv role on it.

i've setup a virtual machine with 1 IDE disk and 1 SCSI disk all VHD on local disk.

when i monitor the server with veeam one it report that the Virtual Storage Error Count in large (9) on the SCSI driver even if this drive is not loaded at all.

why is that?

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Which one is better, Hyper-V or VmWare Workstation 9?

April 2, 2013, 8:33 am

≫ Next: Windows Server 2012 - Can occasionally not access second virtual hard drive inside a VM

≪ Previous: Virtual Storage Error Count report large number

Hi everybody,

I just bought Xeon Machines which is equipped with 2x Quad core Xeons. I want to add sn additional domain controller in my existing domain forest. I don't want to occupied my whole powerfull machine just for additional DC, So I thought to install one of the VMs either Vmware or Hyper-V. Because I may install additional roles which can't be possible with DC. So which one is better Hyper-V or Vmware Workstation 9? I used Vmware and I liked it a lot but no idea about Hyper-V. Plz do suggest because your suggestions are highly recomanded. :)

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Windows Server 2012 - Can occasionally not access second virtual hard drive inside a VM

October 20, 2012, 1:57 pm

≫ Next: How to configure Hyper-V in windows 8 pro for getting network connection in Windows server 2012

≪ Previous: Which one is better, Hyper-V or VmWare Workstation 9?

I run Windows Server 2012 RTM Hyper-V and I can occasionally not access the second virtual hard drive (dynamically expanding VHDX) attached to the VM through the virtual SCSI controller. I can however access the first hard drive that is connected with the virtual IDE controller.

I get the following warning in the event log under “Administrative Events” every 30 seconds when this happens:

Log Name: System
Source: Storvsc
ID: Storvsc
Message: “Reset to device, \Device\RaidPort0, was issued.”

I get this error once or twice a week and it has caused serious problems since one of the virtual servers that have this problem is a fileserver and the second hard drive contains all the data.

The only quick solution to the problem that I have found is to force the virtual machine to stop using the “Turn Off” feature since a normal shut down does not work (stops at shutting down the event log or similar) and then start the virtual machine again.

You can also wait for about 30 minutes or longer until the disk for some reason becomes accessible again by itself.

My research into this problem shows that:

Only 2 of the 10 VMs running Windows Server 2012 RTM that I have, have this problem.
Both these VMs have a second virtual hard drive (dynamically expanding VHDX) that cannot be accessed for 30 minutes or longer.
Check Disk of the virtual hard drive shows no errors.
The second hard drive is attached to the virtual SCSI controller.
I can find no problems at all with the physical storage on the (not related) 4 hosts that I have. The problem exists only in the VMs.

I have now attached the second virtual hard drive to the virtual IDE controller to see if this permanently fixes this problem (i.e. does not happen for at least a week).

Is there something wrong with the virtual SCSI controller or the virtual SCSI device driver that comes with Windows Server 2012 RTM? Does anyone else have this problem?

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How to configure Hyper-V in windows 8 pro for getting network connection in Windows server 2012

May 3, 2013, 9:51 pm

≫ Next: backup of virtual machine report unsuccessfully

≪ Previous: Windows Server 2012 - Can occasionally not access second virtual hard drive inside a VM

I am using windows 8 Pro, in which i enabled Hyper-V and I have installed Windows Srver 2012 as VM. after installing I have configured virtual switch which is associated to the VM. but I am not able to access network in my VM, and also not able to connect to VM through Remote desktop.
Please help me to resolve this problem.

Tnanks & Regards

Debasish

Debasish Das Software Developer. gloStream Inc.

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backup of virtual machine report unsuccessfully

May 4, 2013, 4:07 am

≫ Next: The specified VHD does not have a system volume.

≪ Previous: How to configure Hyper-V in windows 8 pro for getting network connection in Windows server 2012

Hi,

I've few hyper-v 2012 and i use Veeam B&R to do the backup and my replication.

when i run B or R i get this error in the event viewer on Hyper-V-VMMS-admin

Requester reported unsuccessful backup for the virtual machine 'machine name'. (Virtual machine ID 694836FA-8340-4650-B9AE-9D2DE8476D09)

The operation failed.

the veeam software report that the backup was a success but this error is registered all the time in the event viewer.

why?

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The specified VHD does not have a system volume.

May 3, 2013, 9:40 pm

≫ Next: Hyper-V just detect 130gb on VHD 400gb

≪ Previous: backup of virtual machine report unsuccessfully

Hi !

I'm trying to update offline VHD with "Install-WindowsFeature Server-Gui-Mgmt-Infra - Vhd "C:\Users\Public\Hyper-V\Virtual Hard Disks\CORE-SERVER.vhdx" but after 5% I get error message:

Install-WindowsFeature : The request to list features available on the specified server failed.
The image could not be mounted.
The specified VHD does not have a system volume.
Choose a VHD that has a single system volume for operation with DISM. Error: 0xc1550122
At line:1 char:1
+ Install-WindowsFeature Server-Gui-Mgmt-Infra -Vhd "C:\Users\Public\Documents\Hyp ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (@{Vhd=C:\Users\...Name=localhost}:PSObject) [Install-WindowsFeature],
DeploymentProviderException
+ FullyQualifiedErrorId : DISMAPI_Error__Failed_To_Mount_Image,Microsoft.Windows.ServerManager.Commands.AddWindows
FeatureCommand

I am trying this od Hyper-V host. I have also tried this on Oracle Virtualbox but with VHD disk and process passes successfully but my server keeps runing into repair mode on every boot.

Thanks for helping!

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