Hello, my server has 32gb ram and i'm trying to start 3 virtual machines with 2gb ram
but when i try to open the 3rd one i get this error.
the process cannot access the file because it is being used by another process
can i have help in this issue please?
thank you
I am running Hyper-V on Server 2012R2. My server has three network connections. One for the Host OS, and two that Hyper-V manages with its virtual switch. All three connections are connected to an 802.1x protected network. The Host Server OS is configured correctly and is getting IP OK, but none of the client OSes can get an IP address and are unable to authenticate despite being correctly configured in the OS. It seems like the Hyper-V virtual switch is maybe not passing the authentication requests back to the client OS, or the client OSes replies are not being sent to the network through the Hyper_V virtual switch??? At any rate, the virtual clients cannot get IP addresses and we can see the authentication failures along with the virtual MAC addresses in the 802.1x management console.
Does Hyper-V running on Server 2012R2 not support 802.1x?
If Hyper-V doesn't, can someone recommend a competing product that does? I'm not married to Hyper-V if it is not capable of working in a standard enterprise environment.
Hi there,
Is there a way to make sure all VMs on a Hyper-V Cluster, which are marked to autostart, actually restart after a severe network outage which completely disconnects all LUNs. Currently if iSCSI storage is disconnected from all nodes, Hyper-v trys to failover to another node, fails and then gives up.
When the storage comes back online the VM remains in the failed state until manual intervention or the whole server is restarted.
ESXi recognises storage disconnects and seamlessly restarts machines with storage interruptions once the storage comes back online.
Cheers
Host: Windows Server 2012 R2 Standard with Hyper-V role
Guest VM: Windows Server 2012 R2 Standard
When I choose to update the child VM by clicking "Install Updates and Reboot" when I connect the console to watch the VM, I don't see the expected "Installing Updates, 1 of 30" progress screen that I see on a physical Windows host.
I instead see the "Press CTRL+ALT+DEL to sign in" screen. The console is, of course, unresponsive to CTRL+ALT+DEL because it's actually installing updates (I can confirm this because if I wait long enough, it will eventually
reboot with updates installed). But I can't watch the progress to make sure it's proceeding normally and not hanging. Interestingly, the clock continues to count forward, so it's not like it's a frozen image. It's just not showing me the progress
update.
Is this normal or did I inadvertently apply some policy that's causing this? If it IS normal, is it a bug? I don't remember Hyper-V 2008 R2 doing this.
Hi
We are looking for a doc for ports to be opened in network firewall for Windows 2008 R2 / Windows 2012 R2 HV host servers
Thanks in advance
LMS
Hello,
I´ve been facing a problem with the internet connection, which is connected to one of the Virtual machines in Hyper-V environment.
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I will Explain first the topology:
The VM has 2 Network adapters which are both connected to External Virtuel switches. One of them is used only for this Server which is connected to the Internet directly through a "Modem". The 2nd Adapter is used for our Local Network with a Static
IP and without default gateway.
This VM is acting as a Router by using RRAS in order to do the NATing and it is configured as our Default Gateway for the whole Network.
The IP of this VM has been configured in the DHCP Route and DNS Forwarder.
########################
The problem:
There is an interval internet cut down every almost 30 second. Whenever I try to Test the internet speed, the internet speed goes up and start to fall down for a while and then it goes up again.
I have tried everything and I have been trying from more than 2 weeks but nothing has worked so far. I tested it but with a physical server and it worked perfectly.
I would really really appreciate if someone has already faced and solved this problem or have a clue about it.
Hi,
I searched for some time and did not find an answer/documentation. Does the Hyper-v switch support VRF (virtual routing and forwarding)?
Thanks.
Hi all,
I just merged an AVHD into a VHD for a virtual machine using the Edit Disk option under the action menu after all of the snapshots had been deleted, but the VM not shut down afterwards for a long time. I'd done this on a different virtual, and Hyper-V automatically figured out where the new drive was. With this one, I got a progress bar regarding the merge, which filled to completion. However, the VM refused to boot, because it can't find the AVHD file that was merged away. When I try to change the virtual, I get a message saying:
Cannot change disk since a disk merging is pending.
However, I can't figure out how to get Hyper-V to give tell me the progress of that merge. Any ideas?
Hi,
we are running Hyper-V 2012 and 2012R2s host with Windows Server 2012 VMs.
VMs are configured to go into saved state.
But after Windows updates (SCCM) and after some scheduled reboots we are experiencing bad issues
within the OS of the VMs one can see "unexpected shutdown" events which causes trouble with DFS-R for example
So my questions:
1. If we schedule reboots with the "shutdown" command could it be that some VMs are not completely put into saved state and the hosts reboots anyway?
2. If there is the "/force" Parameter is this a difference?
So does the host behave differently then regarding the VMs?
3. Do DFS-R configurations get into trouble when using "saved state"? So would it be recommended to use "shutdown" instead?
Thanks in advance!!
Kind regards
/bkpfast
My postings are provided "AS IS" with no warranties and confer no rights
I have a VM running on a 2008 R2 server.
I shut it down, copy to 2012 Standard and import into Hyper-V. After that, I exported to 2012 R2.
I can then launch the VM and it powers up successfully in 2012 R2.
Hyper-v tells me to upgrade the integration services, and I do.
After the reboot, the server then runs very slow even with 8GB of RAM. CPU usage is pegged at 12% - 15%.
It is a terminal server, and the clients take up to 10 minutes to connect to it and launch the applications.
I cannot figure out why it runs so slow on a faster server with even more RAM and a new server OS.
Is it a compatibility issue between processors?
Any other suggestions?
edit: It appears that TrustedInstaller.exe and svchost.exe are using up most of the CPU usage.
Hi folks,
We have multiple servers with 2 different hardware specs (CPU, NIC, HBA) , We already created 1 HyperV cluster with SCVMM
with 1 type of severs (3) and plan to create another cluster with the other type of servers. Is it doable on SCVMM? what's the best practice for this? Do we need to create different logical networks in SCVMM to accommodate the new
cluster?
Thanks.
I installed Visual Studio and selected the Windows 8.1 phone toolkit and emulator components to be installed with it.But at the end of the installation i received a message that Hyper V settings need to be enabled in this user.My system info are HP Pavilion 15 p 201 tx .Windows 8.1 64 bit OS.
Visual Studio Ultimate 13 Error Message is failed to add the current user to Hyper V admimistratorsHi, I am developing an fsfilter driver on windows 2012 r2. Job is to capture all the IOS happening on vhdx file which I am able to do. But I have no access to any documentation which talks about capturing live migration and snapshot event for vhdx in kernel because I want to do some pre and post processing on vhdx when live migration and snapshot operation is triggered. Can anybody help me on this? Just to clarify, this fsfilter sits on windows 2012r2 host where hyper-v is enabled. I do want to keep any component inside each VM for this purpose. So far, for snapshot - I check if any avhdx is created. If it is created then I know snapshot is triggered. However this is more of hack, I was thinking if there is msdn designed way to hold these operations (live migration& snapshot) in kernel (especially in fsfilter driver). Sorry, if I am attached to wrong forum. If yes then please guide me to right forum.
As title, how to decode hypervisor cupid leaves?
For example,
EAX ECX EAX EBX ECX EDX 40000000 0 4000000A 7263694D 666F736F 76482074 Microsoft Hv 40000001 0 31237648 0 0 0 Hv#1 40000002 0 295A A0000 0 3 40000003 0 1FFF 2BB9FF 2 7FBF2 +CreatePartitions 40000004 0 2D1C FFF 0 0 40000005 0 140 200 324 0 40000006 0 AF 0 0 0 40000007 0 80000003 3 0 0
Jeremy
So, we have a total of six Hyper-V servers in our environment. All six were installed from the same Server 2012 R2 Datacenter ISO. I have been managing these from my Windows 8.1 machine with no issues. I got ahold of Windows 10 build 10240, and I am running into an issue connecting to the servers now.
The strange thing is that I CAN connect to one of them. I cannot figure out what is different on this one server from the other five. Windows updates maybe? I migrated all the VMs off one of the servers I cannot manage remotely, performed all Windows Updates, and I still cannot connect to it.
I am reading that Windows 10 should be backward-compatible with managing Hyper-V on 2012, but on connection, it appears a WMI namespace is missing that the Windows 10 tools are trying to connect to.
I am not trying to use alternate credentials (I read this will NOT work from 10 to 2012 R2). Any ideas why this is not working? Several Google searches have not told me anything so far. I realize Windows 10 has not officially been released yet, but a few of us are testing the waters for compatibility issues.
I would appreciate any help anybody can offer.
Eric
Hi. I'm seeing some weird disk performance issues in a bunch of VMs hosted in a cluster. Didn't notice this until troubleshooting some general "it's slow" comments from users.
Setup:
2*2012 R2 hosts in a cluster
Each host has dual 10gig NICs used only for iSCSI traffic
iSCSI LUNs live on a 3Par 7200
MPIO
Jumbo frames and flow control on iSCSI network
Cluster comms over teamed 1gbit adapters
Hyper-V and host connectivity via other 1 gbit adapters
VHDX files for the VMs live in separate LUNS, all in CSV
VMs are all 2012 R2 as well
Testing by copying a ~15GB file...
File copies from the hosts' disks to the CSV folders are fast.
E.g. c:\path\file --> c:\clustersharedvolume\someLUN\path\file
File copies from host to VMs' disks are fast
E.g. on vm, \\host\c$\path\file --> c:\path\file
File copies between the CSV folders, done on the hosts, are fast.
E.g. c:\clustersharedvolume\LUN1\path\file --> c:\clustersharedvolume\LUN2\path\file
File copies in the VMs between disks... not so good.
E.g. c:\path\file --> e:\path\file, which would be LUN1\vhdx1 --> LUN2\vhdx2
The in-vm file copies start out fast, run fast for maybe the first quarter of the file, and then speed drops and starts varying wildly. Once the variability kicks in, the best I'm seeing is up to around 190MByte/sec, with dips as low as 8MByte/sec, or even momentary pauses.
Anyone have any ideas how I can get the VMs to play nicer?
Hi
Using Cluster Managements mmc I can see for example VM's operating system type: Windows XP, windows 7. How can I get this information using powershell.
Kind Regards Tomasz
