TIA Troy

I've got an existing VM running on a Windows Server 2012 Hyper-V host.  The VM is already configure with "Hyper-V Replica", and has been replicating successfully to a second host for several weeks now.  I've recently added a new VHDX to the VM.  This new virtual hard drive is not being replicated with the rest of the VM.  How can I add this VHDX file to the replication?

about demo example network 

please recommend 

Best Regards.

chatchai-netd

hi,

  I use server 2008r2 sp1 core as hyper-v host. Host has two guest machines. One is print server, second TS Server. All servers are 2008r2 sp1. Utilization of print server is very low. TS has 40 users. Four logic procesor and 12GB memory. Since few weeks I have problem with performance. Utiliztion of processors all time is near 100%. TS is very slow. Utilization of hyper-v host processors is maximum 5%. There is two processors E5540.

I don't understand this situation. Is there any problem with configuration?

Best regards Jacek

I have setup a Isolated network with a primary and secondary vlan using Server 2012 R2 hosts.

Everything works ok on the virtual Machines when settings are published.

But after a restart the isolated network doesnt respond, its more or less dead. Even though Everything says  OK.

I have also a normal truncated vlan on Another NIC that works fine all the time.

If I do a shutdown of the virtual machine and then start it, the isolated network works fine.

Tryed the same network on a 2012 Host, and there I can do restarts of virtual Machines without problem.

Any suggestion where to look now? Im suspecting that I get a lock somewhere, maybe on the Vswitch maybe on the physical switch. But cant really find anything.

I have a single Dell PowerEdge configured as a Hyper-V host running Wink12 R2 Preview as a Native Boot VHD and hosting about a dozen VM's. We had a break in the power, just a lights on lights off, but it was enough to shut the machine down and trigger restart.

But the machine won't restart--instead it displays a message "Automatic repair Failed" and none of the Advanced repair options work to get the host back online.

Any assistance is greatly appreciated.

Michael J. Murphy

I have Windows Server 2012R2 with Hyper-V role installed. I,m using network Team.

When the server starts I receive a error - Hyper-V-VmSwitch EventID 106 - in system event log.

Log Name:      System
Source:        Microsoft-Windows-Hyper-V-VmSwitch
Date:          07.01.2014 18:13:48
Event ID:      106
Task Category: None
Level:         Error
Keywords:     
User:          SYSTEM
Computer:      csmavrtcl06.nlb.si
Description:
Available processor sets of the underlying physical NICs belonging to the LBFO team NIC /DEVICE/{CE5C164C-31C5-4EE7-AD31-CC2A1B2E6813} (Friendly Name: Microsoft Network Adapter Multiplexor Driver #2) on switch 25051EB0-C449-4504-A024-DB3F2D16591F (Friendly Name: ClusterSwitch) are not configured correctly. Reason: The processor sets are not identical when LBFO is configured with min-queue mode.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Hyper-V-VmSwitch" Guid="{67DC0D66-3695-47C0-9642-33F76F7BD7AD}" />
    <EventID>106</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2014-01-07T17:13:48.156559500Z" />
    <EventRecordID>3455</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="60" />
    <Channel>System</Channel>
    <Computer>csmavrtcl06.nlb.si</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <EventData>
    <Data Name="NicNameLen">46</Data>
    <Data Name="NicName">/DEVICE/{CE5C164C-31C5-4EE7-AD31-CC2A1B2E6813}</Data>
    <Data Name="NicFNameLen">47</Data>
    <Data Name="NicFName">Microsoft Network Adapter Multiplexor Driver #2</Data>
    <Data Name="SwitchNameLen">36</Data>
    <Data Name="SwitchName">25051EB0-C449-4504-A024-DB3F2D16591F</Data>
    <Data Name="SwitchFNameLen">13</Data>
    <Data Name="SwitchFName">ClusterSwitch</Data>
    <Data Name="QueueMode">1</Data>
  </EventData>
</Event>

I have searched the web and I have found as many answers as websites, so I wanted to come to the source and ask what is the recommended method.

I have a Server 2008R2 running the Hyper-V role. It has 96Gb RAM and is running 8 VMs. If I could have my wish, I would do an in-place upgrade to 2012 and be done with it, but we all know that is not a good idea, so what is the best way to get from a Server 2008R2 vm host with all of the VMs on DAS, to a 2012 vm host also with enough local storage to hold the VMs? 

Once the VMs are on the 2012 box, I would like to reformat the original host to the newest O/S and move the VMs back.

I understand that there is no way to migrate from 08R2 to 12 without some sort of cluster being involved.

What do you recommend???

MCP SBSC

+__+

I have 4 displays connected to my physical machine(1 over 3). RIght now I am trying to test multiple monitor functionality within a VM. I am connecting using Enhanced Session and can successfully use all available displays. However, I would like to only use the lower 3 displays for the VM, and use the upper display for the host machine. I have attempted to alter this setting

Local Computer Policy>Computer Configuration>Administrative Templates>Windows Components>Remote Desktop Services>Remote Desktop Session Host>Remote Session Environment>Limit Number Of Monitors=3

However, when I connect using this, it will only use a single monitor. When I un-configure this policy, or set the limit to 4, it will use all monitors.  I want to be able to use all 3 lower monitors, and leave the top monitor for the client system. Can anyone test this and confirm functionality, or suggest an alternate method?

Hi.

I have made a couple of previous posts about lots of LUNs, pass-through disks etc, but I'm interested in some general views on it. A few people seem to have differing, strong opinions.

This my use case for lots of pass-through disks, which I have thought long and hard about and I think is fairly reasoned...

- First and foremost my I am running a platform that uses multiple hypervisors (Xen, Hyperv, etc) and single storage.

- I am using a SAN with an great automation API that will negate any and all potential management overhead that may occur from having lots of LUNs. In fact it is a management benefit for me, in some ways. 

- I am using a SAN that does really good snapshots, and the way it maintains metadata means that these snapshots\clones can used as sort of backup in a very robust way.

- I am using a SAN that has lots of cool features that are granular to a LUN, like QoS, API calls for stats etc. It is better for me to split LUNs like this.

- I want to maintain architectural parity between my Hyper-V environment and the Xen (and potentiality other) environment(s),  I know Hyper-V now does pretty good I/O QoS etc, but I would prefer to program and design using SAN level features and tools where possible.

- I am not concerned about corruption protection feature of VHDX because my SAN is clustered.

- I do not need to use differencing disks or anything because I can thinly provision volumes on the SAN.

- I don’t need to do storage migrations or anything like that.

- For some of the reasons I mentioned, I can do rapid provisioning with single per LUN per VM. 

-  I have now tested this thoroughly and the only scaling issue I have encountered is in the Hyper-V GUI, when opening a settings page. See this thread: http://social.technet.microsoft.com/Forums/windowsserver/en-US/e60a4e52-c423-4228-a3e0-4dc65ffe0e18/very-slow-opening-vm-settings-page-when-hypervisor-has-lots-of-logical-disks?forum=winserverhyperv#e60a4e52-c423-4228-a3e0-4dc65ffe0e18

Pass through disks in Windows are a mite faster than VHDX in my tests, but this really isn't what is driving me to use them. It is purely a design choice.

Thing is, I am worried because I see rumblings that Microsoft may possibly discontinue pass-through disks in the future. But surely, with things like VMWare VVol coming and also the way people use KVM and Xen in cloud environments, there will be some consideration for this type of use.

The VHDX format is really cool, but if you have an architectural preference for pass-through, is there really any reason not to use them?

Please put my mind at rest :)

I have Windows Server 2012 with Hyper-V role. There is a network team on the server.

When the server starts I receive a error:

Log Name:      System
Source:        Microsoft-Windows-Hyper-V-VmSwitch
Date:          2/4/2013 2:44:50 PM
Event ID:      106
Task Category: None
Level:         Error
Keywords:     
User:          SYSTEM
Computer:      Seventeen.aqa.com.ru
Description:
Available processor sets of the underlying physical NICs belonging to the LBFO team NIC /DEVICE/{F81E5C50-00B3-4105-9CBB-04919F058B9D} (Friendly Name: Microsoft Network Adapter Multiplexor Driver) on switch 8CBADD0E-F4A3-45D4-AC2D-874C7DE6C821 (Friendly Name: AQA) are not configured correctly. Reason: The processor sets overlap when LBFO is configured with sum-queue mode.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Hyper-V-VmSwitch" Guid="{67DC0D66-3695-47C0-9642-33F76F7BD7AD}" />
    <EventID>106</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2013-02-04T10:44:50.175406400Z" />
    <EventRecordID>11345</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="380" />
    <Channel>System</Channel>
    <Computer>Seventeen.aqa.com.ru</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <EventData>
    <Data Name="NicNameLen">46</Data>
    <Data Name="NicName">/DEVICE/{F81E5C50-00B3-4105-9CBB-04919F058B9D}</Data>
    <Data Name="NicFNameLen">44</Data>
    <Data Name="NicFName">Microsoft Network Adapter Multiplexor Driver</Data>
    <Data Name="SwitchNameLen">36</Data>
    <Data Name="SwitchName">8CBADD0E-F4A3-45D4-AC2D-874C7DE6C821</Data>
    <Data Name="SwitchFNameLen">3</Data>
    <Data Name="SwitchFName">AQA</Data>
    <Data Name="QueueMode">2</Data>
  </EventData>
</Event>

Hi,

I am in the process of upgrading our 4 Hyper-V cluster nodes memory up to 288GB each (Dell Poweredge R710's).

Previously the pagefile was system managed and got pretty big. In fact I have seen it consume all available disk space on 1 node once before. So as a result I have read a few blog post on configuring the page file and there are many different views and recommendations out there, currently our hyper-v hosts are set to 8GB fixed. Should this be sufficient (the hosts are only running Hyper-V with failover clustering)?

Using the example below the author tells us how to configure host reserves (we also use dynamic memory on some of our VMs. The calculation for my hosts with 288GB RAM would be as follows:

384 + (30 * 288) = 9024MB.

However using SCVMM I can set the host memory reserve from the host properties > reserves > memory but this does not change the registry entry that is specified on the blog post (HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Virtualization\MemoryReserve)

So should I be using SCVMM or the registry to specify the host reserve and how come they are different? Does SCVMM store the same setting in another location and if so where is this location and which takes precedence?

http://blogs.technet.com/b/askpfeplat/archive/2012/11/19/hyper-v-2008-r2-sp1-best-practices-in-easy-checklist-form.aspx

 Page file on Hyper-V Host should be set to a fixed size (4GB max) on the system drive, since most Hyper-V implementations have large amounts of physical memory, and, by default, the page file is the same size as the physical amount of memory.

· Can be placed on a SAN drive, if desired

· Should not be on a VM volume, to reduce possible disk latency if page file is being used by host

· Setting location: System Properties à Advanced Tab à Virtual Memory section, select Change –> Uncheck “Automatically manage paging file size for all drives” –> Click “Custom size” radio button and input desired initial size (MB) and Maximum size (MB) (e.g. Input “4096” for both to have a set page file size)-.

MEMORY:

⎕ Set reserved Hyper-V Parent Host memory, to ensure memory is set aside for the host, itself.

· To determine minimum host memory reserve, follow these guidelines:

o Use the following calculation:

384 + (30 * Physical Memory)

For example: 384 + (30*48) = 1824MB min reserve recommendation on host with 48GB memory

· To set memory reserve, change the following:

o Registry Key:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Virtualization\MemoryReserve

REG_DWORD

Value is set in Decimal, and is in megabytes (e.g. 4096)

Requires a reboot to take effect

2-4 GB Minimum on average

Microsoft Partner

I am running Windows Hyper-V Server 2012 R2 (Server Core) on 3 machines to test Hyper-V extended replication.  The amount of data being replicated is significantly more than I anticipated.  I also have some questions about the various options for the frequency of replication, i.e., what impact that will have on replication performance.

Here is an overview of the hardware configuration.

HV1 and HV2 have an Intel Core i3-4130 CPU.  HV3 has an Intel Core i5-2400S CPU.  HV1 is setup using 7 HDD Storage Space with Double Parity.  HV2 and HV3 have 6 HDD in RAID6 using a higher end LSI RAID controller.

HV1 and HV2 are on the same LAN with a Gigabit network.  There is an OpenVPN tunnel between HV1 and HV3 which are in two different LAN networks.  The upload speed of the link between HV1 and HV3 is 10 Mbps.

I am running a Windows Home Server 2011 VM on HV1.  That VM is replicated to HV2 and then the replication is extended to HV3. The initial replication of the VM was done when all 3 HV machines were on the same Gigabit LAN segment.  Afterwards HV3 was moved to a remote location.

WHS 2011 VM is setup with 3 VHDX files.  The boot VHDX is a 160 Gb Fixed VHDX file.  The data VHDX is a 4 Tb Dynamic VHDX. (My recollection is that only about 3 Tb of space is current allocated.)  The WHS 2011 Pagefile is on a Fixed VHDX which is not replicated.  Only the Boot and Data VHDX files are replicated.  Shadow Copies are disabled on WHS 2011 to eliminate any potential they have to add unnecessary disk changes that would need to be replicated.

I don't recall the exact terminology, but in case it makes a difference to performance ... I am using the Kerberos / Certificates method with HTTPS and compression to replicate the data.  Rather than the other option for setting up replication (which I believe required Active Directory?).

Q1)  The amount of data to be replicated seems significantly larger than what I would expect to see.

Last night I copied 4 VHDX files to my PC.  Three files were 8 Gb in size and one file was 10 Gb in size, i.e., 34 Gb total of new data to be replicated.  I then started a backup from my PC to WHS 2011 VM.  About 4-5 hours later I checked on the status of the replication.  The backup from the PC to WHS 2011 was complete.  There was very little data waiting to be replicated from HV1 to HV2.

But the Extended Replication from HV2 to HV3 showed 98 Gb yet to be replicated.  Given the initial change to the PC was only 34 Gb seeing nearly 3 times as much data set to be replicated between HV2 and HV3 was puzzling.

Q2) Would changing the frequncy of how often replications are done affect the amout of data that has to be replicated?  Or does the amount of data stay the same and the frequency only determines how often Windows checks on whether or not data needs to be replicated to the other machine?

At the moment I have the replication frequency on HV1 set at 30 minutes and on HV2 at 5 minutes.  In the particular scenario described above I would have expected nearly all the disk changes to be "new sectors," i.e., I would not think that the same "sector" might be updated several times?

Since the link between HV1 and HV3 is the slowest (which is used for the extended replication from HV2 to HV3) my thought was that allowing HV2 to check more often as to whether or not data needed to be replicated would help to keep the link utilization high.

But just in case the same "sector" is updated multiple times, and if that should cause HV Replica to transmit the sector multiple times, my thought was that setting the frequency on HV1 to 30 minutes might lessen the amount of data that would eventually have to be replicated from HV2 to HV3?  For example, if sector 99 is updated 10 times during that 30 minutes I wasn't sure if 10 "instances" would need to be replicated?  Or would only the last "instance" need to be replicated to HV2?

Q3) Is there any difference to replication performance depending upon whether or not a Fixed or Dynamic VHDX is being replicated?

In my scenario if I were to compare a 4 Tb Fixed VHDX versus using a 4 Tb Dynamic VHDX (of which only 3 Tb is currently allocated) will using one or the other format almost always guarantee that more data will need to be replicated?  For the initial replication I'd guess that more work would have been involved for the Fixed VHDX than the Dynamic VHDX.  But after that initial replication is done does the nature of using a Dynamic VHDX mean that there are more changes to the disk and thus more data to be replicated?  Or is there no specific correlation betwen the amount of data that would need to be replicated and the type of VHDX that is in use?

Thanks for any insight you can provide to any or all of these questions.

Theokrat

Hi, I am using Hyper V Manager to create a Virtual Machine so I can test applications in Windows EC 2013.

I am having problems setting up my Virtual Machine though, here is the screenshot of when I run my machine:

I have no idea why this is not working, I have followed the msdn walkthrough "Use Hyper-V to create a virtual machine (Compact 2013)", unfortunately I cannot provide the link but Google that title and you will find the correct article.

As you can see from the screenshot above, it finds the DHCP straight away, but the BootMe message will time out, at attempt 60, with the error message : Error: BootDownloadBin!ImageType: BootTransportRead Failed!

Online forums have suggested changing firewall settings, inbound rules and I haven't found anything that has worked so far.

Any help would be greatly appreciated,

Thanks,

Nick

Hyper-V 2012 host

Server 2012 R2 guest

The guest is configured for startup and minimum memory of 2 GB with a maximum memory of 64 GB.  Once per day a PowerShell script runs which uses 7-Zip.exe to compress some large files.  The 7-Zip command fails if there is less than 10 GB of memory immediately available.  I do not want to allocate that much minimum memory to the guest, as it doesn't need it for anything but this one script.

How can I programmatically request or instruct the host to allocate 10 GB to the guest before I run the 7zip command?

Currently I am launching a PowerShell job running Sysinternals TestLimit64.exe and running it until I see the allocated memory go up on the host.  But this workaround is inelegant, inexact, imprecise, and slow.

Thank you.

Tim Curwick
MadWithPowerShell.com

Hi

I have 2 Windows server 2012 Hyper-V Core edition with 4 NIC, I am trying to configure windows cluster and validation test passed successfully

I get the following Message when running command "New-Cluster –Name CLUName1 –Node Node1,Node2 –StaticAddress 192.168.13.30

"The security database on the server does not have a computer account for this workstation trust relationship" or

I checked and i have Enterprise admin rights and Schema Admin. I also ran on Node1 NETDOM RESETPWD /Server:node1  /UserD:Domain\user1 /PasswordD:XXXXX  and on Node2 NETDOM RESETPWD /Server:node2  /UserD:Domain\user1 /PasswordD:XXXXX Both sucessfull.

Has anybody had any issues installing RHEL 6.5 on 2008R2 Clusters managed by SCVMM 2012R2? Although it would load, it would not complete a first boot if any X windows packages were installed. It would boot if I left these packages off but the Ethernet adapter didn't appear even though the kernel modules appeared to be loaded. I did this on two different clusters managed by two different SCVMMs.

If I downloaded the 6.4 ISOs, they installed fine. I'm yum updating them now to see if they break once they get to 6.5.

Thanks,

JAK

I have just embarked on a project to v2v 250 VMs from vSphere 5.1 to Hyper-V 3.0. I thought I'd start a discussion string on v2v experiences. I have used the native v2v conversion with in VMM, 5nine's Easy Converter, Starwind's Converter and MVMC. I'm not happy with any of them. They are so inconsistent and frustrating, I see this project as literally taking years. Sometimes the VMM converter works, sometimes it just fails with crypt error messages. At the beginning it would crash the management interfaces on the ESXi servers but a ticket with VMware and increasing some system values solved that.

Most of the time, it will run for an hour or two, then just fail with no explanation. Same for MVMC. Occasionally I have some luck doing a p2v instead of a v2.

5nine usually fails, but gives me the VHDX files so I can create the VM from there. Ditto for Starwind.

Even if I could get a product that works consistently, the fact that 5nine and VMM actually make 2 or 3 copies of the VMDKs during the conversion process is pretty ridiculous. I have had to carve out terabyte LUNs to attach to a Hyper-V host just to have enough scratch disk to convert, then watch the conversion take literally hours.

All in all, a very frustrating experience. Have others been faced with similar issues? And if so, how did you tackle it?

Thanks.