I am planning out a project that will entail converting an environment that is currently mixed with Physical and virtual servers.  I plan on P2Ving all servers and placing them on new hardware running Server 2012 Hyper-V.  My question is.... how can I figure out how many VMs a particular server can handle? 

For example... If I were to purchase an HP DL580 with 4 QUAD Core procs and roughly 250GBs of RAM how many VMs could I run comfortably allowing some room for growth?Is there a formula or benchmark for me to follow to figure this out?

Please help.....

Whenever I attempt to connect to my virtual machine after installing RemoteFX, I get the following error: "The remote session was disconnected because there were network problems during the licensing protocol."

I am running Server 2012 on the following hardware, with Windows 7 Ultimate as the VM.

Server Specs

• i7-2600k
• NVIDIA 560TI
• 8GB RAM
• 400GB HDD

Any help would be greatly appreciated.

How to install hyper-v on windows 8 ?

I want to install virtual PC but after some research I came to know that windows 8 no longer support virtual pc and it has been replaced by something called hyper-v.

I just bought a Windows 8 laptop.

I tried looking into windows on / off features (in control panel) and there is NO hyper-V.

I know why I don't have hyper-V because after doing some research it seems like it is only available on windows 8 PRO.

Here is comparison chart: http://en.wikipedia.org/wiki/Windows_8_editions#Comparison_chart

I have Widows 8 on my laptop (NOT Windows PRO).

Now in this situation, how to install hyper-v on my laptop ?

Also, will I be able to run windows 7 virtually on my windows 8 laptop using hyper-v just like virtual pc ? like switching in windows between OS ? If I cannot do this and hyper-v does not work like virtual PC then I don;t think hyper-v will be useful to me at all and i don't wanna figure it out if it is not useful in any way ?

I am a beginner user of hyper-v 2012 server (core) .

I made a virtual machine with New-VM and Start-VM command in the powershell at H-V server (stand alone).

But, I could not view the virtual machine in a window  at a display monitor of H-V server.

I used 'vmconnect.exe' copied from windows8pro, but error occurred with 'APPCRASH at KERNELBASE.dll'.

Please teach me how to view a virtual machine.

Here's my setup:

I have a wireless adapter connected to my host server which gives me Internet access.

I have one desktop connected to my host server via Ethernet, primarily for Remote Desktop access (from desktop to server, not vice versa).

It is simple to share Internet between host and desktop via ICS. Remote Desktop Connection works well too.

However, I am having trouble when introducing this next variable:

I have created a Debian VM in Hyper-V on my server, which I would like to access the Internet and use as a web host. I have created the "Internal Virtual Switch" and assigned it to the VM as legacy. For whatever reason, it will not let me assign the wireless adapter as an External Virtual Switch. I can only access the Internet on my VM if I use ICS on the wireless adapter and assign it to the Virtual Switch (Internal). This is an issue because it no longer shares Internet with my Ethernet port which connects to my desktop. I want to be able to access internet on all three machines-- desktop, server, and VM.

I have tried bridging but doing so then causes inability of connecting to the server from my desktop via Remote Desktop Connection (can't find host on network).

Any ideas? I have asked the question elsewhere and someone mentioned static IP address. My wireless internet is dynamic IP.

Hi,

My scenario is as follows:

Sun x4140 server with 4 x on-board Nvidia nForce 1gb nics. These nics do not support vlan tagging (go figure). I configured 2 ports on my Cisco switch as access ports tagged to our server vlan. I then went ahead and teamed (switch independent) the 2 x nics connected to the afore mentioned ports. I configured a new vSwitch adding the teamed adapter as the network adapter for the vswitch. Then I went and created a vAdapter for the ManagementOS and assigned it an IP in the server vlan. Problem is it does not work. I cannot ping anything  or access any network resources doing this. If I remove the team and assign only a single nic instead of the team to the vSwitch, the ManagementOS vAdapters works perfectly.

All I can think is that teamed adapters can only function on trunk ports? Can anyone tell me where I am going wrong?

I had a W2K8 r2 Datacenter host with 7 vms. I upgraded the host to W2k12 Datacenter. All the vms worked correctly except one W2K8 standard VM. When I loaded the new integration services into the W2K8 standard VM, it notified me they were an older version, I went ahead and installed them. Reboot the VM. On startup I get notified that the updates failed, and they are rolled back.

The vm boots up ok and runs fine on the old (w2k8) integration driver. In Hyper-V Manger, for this VM, in the Networking tab it says Status: Degraded (integration services upgrade required).

Should I worry about this? The VM seems to work fine. Any suggested fix? Thanks.

Hyper-V ver: WS2012 Hyper-V

Clusters: No

I have an issue after my vendor do some cabling replacement in data center. After that I found my VMs goes down. All VMs status appear "Cannot connect to virtual machine configuration storage". I decided to reboot Hyper-V Host and after reboot all VMs looks like ok (able to starts) there only one VM unable to start. When start the VM its appeared error as below:
Hyper-V Manager


An error occurred while attempting to start the selected virtual machine(s).

'SPMB_VM1' failed to start.

Microsoft Emulated IDE Controller (Instance ID 83F8638B-8DCA-4152-9EDA-2CA8B33039B4): Failed to Power on with Error 'The chain of virtual hard disks is inaccessible. There was an error opening a virtual hard disk further up the chain.'.

Failed to open attachment 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1_A9BFBC34-AFB3-47F4-89A3-B34A2582BE50.avhdx'. Error: 'The chain of virtual hard disks is inaccessible. There was an error opening a virtual hard disk further up the chain.'.

Failed to open virtual disk 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1_A9BFBC34-AFB3-47F4-89A3-B34A2582BE50.avhdx'. A problem was encountered opening a virtual disk in the chain of differencing disks, 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1.vhdx': 'The chain of virtual hard disks is corrupted. There is a mismatch in the identifiers of the parent virtual hard disk and differencing disk.'.

[Expanded Information]
'SPMB_VM1' failed to start. (Virtual machine ID 60F92E2F-B5FD-40E7-B208-7BF50956C620)

'SPMB_VM1' Microsoft Emulated IDE Controller (Instance ID 83F8638B-8DCA-4152-9EDA-2CA8B33039B4): Failed to Power on with Error 'The chain of virtual hard disks is inaccessible. There was an error opening a virtual hard disk further up the chain.' (0xC03A0019). (Virtual machine ID 60F92E2F-B5FD-40E7-B208-7BF50956C620)

'SPMB_VM1': Failed to open attachment 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1_A9BFBC34-AFB3-47F4-89A3-B34A2582BE50.avhdx'. Error: 'The chain of virtual hard disks is inaccessible. There was an error opening a virtual hard disk further up the chain.' (0xC03A0019). (Virtual machine ID 60F92E2F-B5FD-40E7-B208-7BF50956C620)

'SPMB_VM1': Failed to open virtual disk 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1_A9BFBC34-AFB3-47F4-89A3-B34A2582BE50.avhdx'. A problem was encountered opening a virtual disk in the chain of differencing disks, 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1.vhdx' (referenced by 'F:\Hyper-V\SPMB_VM1\Virtual Hard Disks\SPMB_VM1_DE2B1A37-E031-4B72-A9DD-20A1C0427BFD.avhdx'): 'The chain of virtual hard disks is corrupted. There is a mismatch in the identifiers of the parent virtual hard disk and differencing disk.' (0xC03A000E). (Virtual machine ID 60F92E2F-B5FD-40E7-B208-7BF50956C620)

I try to apply the snapshot and error still appeared as below:
An error occurred while attempting to apply the snapshot.

'SPMB_VM1' failed to apply snapshot.
(Virtual machine ID 60F92E2F-B5FD-40E7-B208-7BF50956C620)

I also tried to revert bot still got an error below:

An error occurred while attempting to revert the virtual machine.

'SPMB_VM1' failed to apply snapshot.

(Virtual machine ID 60F92E2F-B5FD-40E7-B208-7BF50956C620)

Appreciated to experts advice on this issue.

Thanks.

I've been scouring the web for the past 3 days trying to get a straight answer, but there's nothing that can provide me an answer.  Hopefully you guys will be able to tell me if it will work for 2k8R2.

I currently have a Dell R710 set up running 2k8R2 and I want to reprovision my other R710 which is currently running VMWare.  If 3.0 will work on 2k8R2, easy peasy... but if not, I have to really think about switching back to VMWare.

Thanks.

Milnes

Hi All,

Two windows 2012 hyper v host, both use NIC team LACP, and use Cisco switch

VM in hyper A host, can ping hyper b host, can not ping vm in hyper b, also can ping other physical machine, can ping google,vm in hyper a can ping each other

VM in hyper B host, can ping hyper A host, can not ping vm in hyper a, also can ping other physical machine.can ping google,vm in hyper b can ping each other

hyper a host and hyper b host can ping each other

all fw in host and guest disable. updated all nic network,

all guest vm use different MAC address.

who have same issue?

I think it's switch cause this issue,but no idea how to correct it.

Hyper-V OS: WS2012 Std

Guest OS: WS2012 Std

Physical memory: 12 GB

Virtual Memory assign: 8GB (Dynamic Memory)

Recently I installed WS2012 Std edition into my Hyper-V. I'm planning to install SCOM 2012 Sp1 in my VM. I encounter an issue with memory over commit. On resource monitor I found "DWM.exe" cummit up to 19,844KB. I wonder why every time I increase the memory the available memory still got not enough.

Below is the details memory usage:

In Use: 7.8GB

Available: 181MB

Committed: 7.8/9.2 GB

Cache: 175MB

Paged pool: 72.3MB

Non-paged pool: 23.4MB

Appropriated it to any expert will answer my question.

Thanks.

Hellon everyone,

Need your kindly suggestions again on my Hyper-V deployment. I have a small Hyper-V cluster, 2 nodes, 15 VM (to be imported) and storages / Switches / etc... Currently I installed SCVMM 2012 on one of the Hyper-V hosts by evalution mode. Please share me your points on below questions:

1. I need a strong reason to ask my boss to purchase SC and the super-expensive SQL Server. What is the reason you deploy SCVMM and/or other SC components? Is SC the only option for these tasks?

2. Shall I purchase another physical server for SCVMM? Or I simply install SCVMM and SQL on a hyper-v host (That's the current status)? Maybe install them on a VM?

Any reply will be appreciated.

I have a Windows Server 2012 setup with HyperV and NIC Teaming (independent hash). Inside this server I have 3 vm

1x Fedora

1x Win2012

1x Win2008R2

All 3 are setup with ftp (21) and http (80) services

From my home router, when I do a port forward for port 21 and port 80 to the physical and Linux vm, it works fine.

However when I port forward to either windows machine, it does not work.

I have tried turning off the firewall on the windows vm, rebooting the boxes, changing the router and the result is still the same

Anyone have any idea what may be the cause or if i'm missing something?

Hi,

I have build a 2012 Server with a single NIC (Emergency replacement for another server that died).

I have installed HyperV.

Host server has a fixed IP Address

Guest OS can receive DHCP address but have set it to fixed.

Guest OS can ping all of network. It can access the internet using DNS Service on Host Server.

Host Server, Rest of network, cannot ping Guest Server or see any services on it.

Windows Firewall Switched off.

Plugged into unmanaged switch now (Cisco unit).

Any idea why this simple config won't work? I have added the guest OS as a domain member for example (which worked) but the host server cannot see the guest server at all. If ping is working traffic is obviously going from one to the other even if Ping does not work.

Server is HP MicroServer with Broadcom NIC

It seems to be the virtual switch that is blocking the traffic.

Hello,

I'm a bit concerned by network performance on child partitions with Hyper-V. Here is my test environment :

- One physical server with two physical NIC (one dedicated to parent partition, the other one for child partition)

- Windows Server 2012 OS on parent & child

- External virtual network bound to second physical NIC (host OS not allowed to share this network adapter)

The problem is as follows : from a random device on network, ping response time of host is excellent (always < 1ms), but is *a little* worse for guest (on average< 1ms, but sometimes higher, = 1ms, 10ms or even > 30ms). To be more clear, here is ping results for host :

Pinging 192.168.1.8 with 32 bytes of data:
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128
Reply from 192.168.1.8: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.8:
    Packets: Sent = 10, Received = 10, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

For guest :

Pinging 192.168.1.9 with 32 bytes of data:
Reply from 192.168.1.9: bytes=32 time=1ms TTL=128
Reply from 192.168.1.9: bytes=32 time=3ms TTL=128
Reply from 192.168.1.9: bytes=32 time<1ms TTL=128
Reply from 192.168.1.9: bytes=32 time<1ms TTL=128
Reply from 192.168.1.9: bytes=32 time<1ms TTL=128
Reply from 192.168.1.9: bytes=32 time<1ms TTL=128
Reply from 192.168.1.9: bytes=32 time=1ms TTL=128
Reply from 192.168.1.9: bytes=32 time<1ms TTL=128
Reply from 192.168.1.9: bytes=32 time=5ms TTL=128
Reply from 192.168.1.9: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.9:
    Packets: Sent = 10, Received = 10, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 5ms, Average = 1ms

As you can see, guest results are just a little bit worse than host (I repeated this test dozens of times from different devices on network, results show the same pattern each time).

I am trying to double click and mount C:\Users\Public\Documents\Hyper-V\Virtual hard disks\disk.vhdx but I am getting error "You don't have permission to mount the file." My user has full permissions on the object. Why am I getting this error?

Hello everyone

I encountered this on one of our Hyper-V clusters a few days ago. We had a node failure due to (root cause uncertain, the logs are inconclusive) either network or FC-HBA failure. we lost contact with all machines which resided on the disks that the failing node owned.

the disks were moved to other nodes and machines were brought back online. but oddly enough there appeared "duplicates" of machines across some nodes, this was fixed. and the failing node was taken offline and we did a driver/firmware update and placed the node back into the cluster.

a few days later we noticed that one of the disks were "online, redirected". and we were unable to bring it back to online direct access mode. so migrated it to another node and rebooted the node. Now the volume was online BUT it was not able to find the disk, because the disk signature had changed!? fortunately there were no critical servers on the disk, but were not able to get it back online.

I've come across some "old" KB's and i wonder if its still possible for them to apply(it says win2000 and 2003)? because it explains what I have experienced.

http://support.microsoft.com/kb/293778

http://support.microsoft.com/kb/280425

Any other suggestions of what we can do to bring the disk back online without re-initializing the disk?

thanks for your time.

I had Virtual PC when I was using Windows 7. When I upgraded my OS to Windows 8 and I installed Hyper-V. Now when I start my guest(Windows 7) machine it keeps running in loop(starts- stops more like reset).

Event Viewer

Event Id : 18560

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">- <System>  <Provider Name="Microsoft-Windows-Hyper-V-Worker" Guid="{51DDFA29-D5C8-4803-BE4B-2ECB715570FE}" />   <EventID>18560</EventID>   <Version>0</Version>   <Level>1</Level>   <Task>0</Task>   <Opcode>0</Opcode>   <Keywords>0x8000000000000000</Keywords>   <TimeCreated SystemTime="2012-11-25T14:31:40.671345200Z" />   <EventRecordID>1215</EventRecordID>   <Correlation />   <Execution ProcessID="1752" ThreadID="5400" />   <Channel>Microsoft-Windows-Hyper-V-Worker-Admin</Channel>   <Computer>Wizard-PC</Computer>   <Security UserID="S-1-5-83-1-3253168545-1291008576-2671657123-2601362917" />   </System>- <UserData>- <VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events">  <VmName>Test</VmName>   <VmId>C1E769A1-3A40-4CF3-A340-3E9FE5A50D9B</VmId>   <Rax>0xa0000</Rax>   <Rbx>0xffffffff</Rbx>   <Rcx>0x9fffd</Rcx>   <Rdx>0x9fc00</Rdx>   <Rsp>0x1d38</Rsp>   <Rbp>0x1f20</Rbp>   <Rsi>0x3d961</Rsi>   <Rdi>0x3d95d</Rdi>   <R8>0x0</R8>   <R9>0x0</R9>   <R10>0x0</R10>   <R11>0x0</R11>   <R12>0x0</R12>   <R13>0x0</R13>   <R14>0x0</R14>   <R15>0x0</R15>   <Rip>0xff4e</Rip>   <Rflags>0x10083</Rflags>   <FpControlStatus>7F030000000000000000000000000000</FpControlStatus>   <XmmControlStatus>0000000000000000801F0000FFFF0000</XmmControlStatus>   <Cr0>0x11</Cr0>   <Cr2>0x0</Cr2>   <Cr3>0x0</Cr3>   <Cr4>0x0</Cr4>   <Cr8>0x0</Cr8>   <Xfem>0x0</Xfem>   <Dr0>0x0</Dr0>   <Dr1>0x0</Dr1>   <Dr2>0x0</Dr2>   <Dr3>0x0</Dr3>   <Dr6>0xffff0ff0</Dr6>   <Dr7>0x400</Dr7>   <Es>0000000000000000FFFFFFFF100093C0</Es>   <Cs>0000000000000000FFFFFFFF08009BC0</Cs>   <Ss>0000000000000000FFFFFFFF100093C0</Ss>   <Ds>0000000000000000FFFFFFFF100093C0</Ds>   <Fs>0000000000000000FFFFFFFF100093C0</Fs>   <Gs>0000000000000000FFFFFFFF100093C0</Gs>   <Ldtr>00000000000000000000000000000000</Ldtr>   <Tr>0000000000000000FFFF000000008B00</Tr>   <Idtr>000000000000FFFF0000000000000000</Idtr>   <Gdtr>000000000000270088BC000000000000</Gdtr>   <Tsc>0xa96d25b5</Tsc>   <ApicBase>0xfee00900</ApicBase>   <SysenterCs>0x0</SysenterCs>   <SysenterEip>0x0</SysenterEip>   <SysenterEsp>0x0</SysenterEsp>   </VmlEventLog>  </UserData>  </Event>

Event Id: 18570:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">- <System>  <Provider Name="Microsoft-Windows-Hyper-V-Worker" Guid="{51DDFA29-D5C8-4803-BE4B-2ECB715570FE}" />   <EventID>18570</EventID>   <Version>0</Version>   <Level>1</Level>   <Task>0</Task>   <Opcode>0</Opcode>   <Keywords>0x8000000000000000</Keywords>   <TimeCreated SystemTime="2012-11-25T14:31:40.671345200Z" />   <EventRecordID>1214</EventRecordID>   <Correlation />   <Execution ProcessID="1752" ThreadID="5400" />   <Channel>Microsoft-Windows-Hyper-V-Worker-Admin</Channel>   <Computer>Wizard-PC</Computer>   <Security UserID="S-1-5-83-1-3253168545-1291008576-2671657123-2601362917" />   </System>- <UserData>- <VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events">  <VmName>Test</VmName>   <VmId>C1E769A1-3A40-4CF3-A340-3E9FE5A50D9B</VmId>   <FailureCategory><not a known problem></FailureCategory>   <InstructionByteCount>16</InstructionByteCount>   <InstructionBytes>81395253442075098179045054522074</InstructionBytes>   <Rax>0xa0000</Rax>   <Rbx>0xffffffff</Rbx>   <Rcx>0x9fffd</Rcx>   <Rdx>0x9fc00</Rdx>   <Rsp>0x1d38</Rsp>   <Rbp>0x1f20</Rbp>   <Rsi>0x3d961</Rsi>   <Rdi>0x3d95d</Rdi>   <R8>0x0</R8>   <R9>0x0</R9>   <R10>0x0</R10>   <R11>0x0</R11>   <R12>0x0</R12>   <R13>0x0</R13>   <R14>0x0</R14>   <R15>0x0</R15>   <Rip>0xff4e</Rip>   <Rflags>0x10083</Rflags>   <FpControlStatus>7F030000000000000000000000000000</FpControlStatus>   <XmmControlStatus>0000000000000000801F0000FFFF0000</XmmControlStatus>   <Cr0>0x11</Cr0>   <Cr2>0x0</Cr2>   <Cr3>0x0</Cr3>   <Cr4>0x0</Cr4>   <Cr8>0x0</Cr8>   <Xfem>0x0</Xfem>   <Dr0>0x0</Dr0>   <Dr1>0x0</Dr1>   <Dr2>0x0</Dr2>   <Dr3>0x0</Dr3>   <Dr6>0xffff0ff0</Dr6>   <Dr7>0x400</Dr7>   <Es>0000000000000000FFFFFFFF100093C0</Es>   <Cs>0000000000000000FFFFFFFF08009BC0</Cs>   <Ss>0000000000000000FFFFFFFF100093C0</Ss>   <Ds>0000000000000000FFFFFFFF100093C0</Ds>   <Fs>0000000000000000FFFFFFFF100093C0</Fs>   <Gs>0000000000000000FFFFFFFF100093C0</Gs>   <Ldtr>00000000000000000000000000000000</Ldtr>   <Tr>0000000000000000FFFF000000008B00</Tr>   <Idtr>000000000000FFFF0000000000000000</Idtr>   <Gdtr>000000000000270088BC000000000000</Gdtr>   <Tsc>0xa9694d9d</Tsc>   <ApicBase>0xfee00900</ApicBase>   <SysenterCs>0x0</SysenterCs>   <SysenterEip>0x0</SysenterEip>   <SysenterEsp>0x0</SysenterEsp>   <PendingInterruption>0x0</PendingInterruption>   </VmlEventLog>  </UserData>  </Event>

I tried disabling AVX(intel feature known to cause issues with Hyper V)

My Laptop Details:

Make: Dell XPS L702x

CPU: i7 - 2630QM

RAM: 6GB

Graphic Card: Geforce 555m