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?
We have 2 Hyper-V servers that we are unable to connect to each other in Hyper-V manager.
This is the error that we got when trying to connect to the remote server:
An error occurred while attempting to connect to server "". Check that the Virtual Machine Management service is running and that you are authorized to connect to the server.
When we are rebooting the servers, Hyper-V Manager is able to connect to the remote server for a certain period of time (like 1 minute) and then it disconnect and gives us that error: RPC call failed.
In event viewer, we are seeing this error:
DCOM was unable to communicate with the computer using any of the configured protocols; requested by PID 100c (C:\Windows\system32\ServerManager.exe).
We tried to change the DCOM permissions without any success.
When we are trying from another machine, we are able to connect to the server, with Hyper-V Manager. But when we are trying between these 2 machines, we got these errors.
We are using Windows Server 2012 R2.
I have a Dell R710 + Win2012 R2 - File Server + WSB + VSS backup components and a 2.5 TB partition with iSCSI Server Target, presenting the 2.5 TB disk space to all Hyper-V Hosts
4 X Del M600/610 Blades WIn2012 R2 - HYper-V, FailoverCLuster + WSB + VSS backup components and every Hyper-V Host accessing a "c:\clusterstorage\volume1" 2.5 TB disk space area to store several VHD files (in root, c:\clusterstorage\volume1)
WHat free options do I have to backup all VMs?
Windows Server Backp is an option? When i open the WSB, i can see the VMs and all .VHDs located on "c:\clusterstorage\volume1" as options to backup.
Can I simply backup all .VHD files stored in "c:\clusterstorage\volume1"? (i know that i´ll backup all .VHD files, entirelly, all job backup i´ll run)
There is another free option to backup? Altaro? Veeem? StarWInd? Cobian?
We have continual problems with losing network connectivity to the virtual machines hosted on a Hyper-V host (the host is running Hyper-V Server 2012 R2), it goes down 2 – 3 times per week.
Situation:
Hi all
I have a lab consisting of 2 Mac Mini Servers, late 2009 model, most often running Hyper-V on the newest evaluation versions of Windows Server. With Windows Server 2012, everything was running smoothly.After upgrading to Windows Server 2012 R2, all VMs that are assigned to a VLAN lost network connectivity (aka "Enable virtual LAN identification" in the VM NIC settings). VMs using no vlan id work as expected!
While doing research it seems like there are some network-related problems with W2K12 R2 floating around, but I was unable to find any useful info matching my problem.
Installing W2K12 R2 Update 1 did not help in any way. After quite some hours with eliminating possible problem sources, I seem to end up with this behavior being a BUG in Windows Server 2012 R2.
Here some details for anybody willing to doublecheck that I did not overlook anything:
The server setup
: both servers are configured identically. The build-in NIC is assigned to a virtual switch of type "External", and is shared with the management OS. Each host has an additional FastEthernet USB adapter, which is also configured as virtual switch of type "External", but not shared with the OS.
The upstream switch
is configured to send untagged traffic for the management network, and tagged traffic for all VM networks, on all ports that are connected to the lab server (meaning both for the built-in and for the USB network adapter). The switch config was not touched in the OS upgrade process.
Misc settings:
1. When setting "Enable virtual LAN identification for management operating system" and re-configuring the switch to send tagged traffic also for management network, then the management OS also looses network connectivity.
2. Un-checking the "Allow management operating system to share this networking adapter" does not help either. When running Get-NetAdapter I see that the physical adapter (Ethernet) has the same MAC-address as the virtual adapter (vEthernet), as somewhat described here.
3. Attaching the VMs to the vitual switch using the USB network adapter does not help either, so I am inclined to rule out a driver related problem since the problem show on two completely different NICS - unless Microsoft somewhat has made changes to VLAN traffic handling in Hyper-V/virtual switch!
Device Manager reports the built-in NIC
as VEN_10DE / DEV_0AB0, and according to pcidatabase.com this is the "NForce 9300 LAN/SATA/SMBUS/SMU/GPU" controller. Device Manager reports it as "NVIDIA nForce Networking Controller Properties", driver version 7.3.1.7336 from 23.02.2012.
When checking the NIC configuration (Device Manager/NVIDIA .. Network Controller, Properties, Advanced), I see that the propertyPriority & VLAN with value ofPriority Enabled. When changing this toPriority & VLAN Enabled, management OS also looses network connectivity. The VMs still do not have any network connectivity. - In short: it seems like Window Server 2012 R2 has - at least in my lab
scenario - a serious problem handling any VLAN-related traffic. Windows Server 2012 was working flawlessly. Any hints appreciated, or some feedback if other are experiencing similar issues.
Hi,
We are managing an hyper-v infrastructure compose of 5 hyper-v physical hosts running Windows Server 2008 R2, this servers are in an active directory, but the virtual machines running on this hyper-v hosts are in different active directory, Is there any advantage running this platform in this way? I mean, considering issues like security, managing, etc, which is a better approach, keep it running as is, or consolide both Hyper-v hosts and virtual machines in a same Active directory domain?
I would appreciate your opinions so much.
Greetings!
Hello,
I have an activated windows server 2012 R2 Std Edition. Using the same license I activated two Virtual machines running on hyper-V of this server 2012 R2. I activated the replication of one virtual machine. It is replicated on another server also running an activated windows server 2012 R2 Std Edition.
Is this replicated VM automatically activated or do I need to buy another license in order to activate it ?
Cordially,
Hello everyone I am currently running a 2 node microsoft windows server 2012 failover cluster and i have a funky issue that is happening ONLY when the physical router connected to the WAN is restarted. a bit more information to help with trouble shooting: 2 nodes (identical in specs/build) are connected to 1 synology NAS where i have created the iscsi luns that are mounted on the 2 nodes via mpio (round robing w/ subset). Every thing runs smoothly until the physical netgear router is rebooted from time to time.
When i reboot the router the virtual disks in the cluster go offline and so do the associated virtual machines. They will only come back online when the router is up and running once again.
Any ideas on what can be causing this ?
Hi. Im having an issue in my lab testing out the shared vhdx functionality of 2012 R2.
The hardware is as follows2x HP DL380G5 with 2xHP P800 Smart Array controllers 2x500GB SATA SSD 2x1TB SATA HDD. Ive used Starwind to create 2 Cluster Shared Volumes on which my shared VHDX files are.
The issue im having is that after the creation of shared vhdx files (3-4 hours) any failover change in the vm configuration will result in Error opening handle for initiator. Initiator: {460b2b45-2f5a-485f-b045-60b68b655895}. Hostname: HYPERV1. File: \SQL QUORUM.VHDX:SHAREDVIRTUALDISK.
Error: The request is not supported..
Ive set the ISCSI sync adapters to "dont allow cluster and client communication" and prevented it being registered in dns (nslookup only shows one ip) yet every shared vhdx has this issue.
Can anyone suggest if this is a hardware issue or software ? It is such a timesaver compared to multipath io and iscsi on the guests id like to get it working.
I am using Windows 8.1 Pro with Hyper-V. Can I use a Synology NAS and create iSCSI LUNs which are shared between TWO virtual machines (running Linux) - a shareable disk.
Or is this possible only in Windows 2012 Server?
Thanks
Hey Guys
Sorry if is a dumb question or there is already a builtin solution for this.
But im looking for a tool, script or something to export my Hyper-V configuration (with hosts, vms, virtual switches) to a visio diagram. The more automated better.
there is such a thing?
Thanks
MCTS - SCCM
We are running Hyper-V on windows 2012 R2 servers. VMs on one of 4 Dell PowerEdge servers run very slow. I have tried different OS such as windows XP and Windows 7. All have the same issue. If I move the VM to different Hyper-V host, it runs normal. If I run the VM without network, it works great. Only when I enable the network, it runs terrible slow. I thought it is network issue. I have installed the latest NIC driver. I have disable offload, but can’t fix the problem. Help please.
Bob Lin, MCSE & CNE Networking, Internet, Routing, VPN Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net How to Install and Configure Windows, VMware, Virtualization and Cisco on http://www.HowToNetworking.com
Hi,
I have configured Hyper-V in My Windows8.1 machine and installed 3 VMs with Windows8, windows Vista and Windows XP SP3.
I am able to connect network from VM with Windows 8 but unable to connect network with VMs with OS Visat and XP.
for all VMs, I have created ONE Vertual Network in view of using one VM only at a time.
So, Same virtual network adapert given access to the network in Windows 8 VM but not in Vista and XP VMs
Please give me suggestion to rectify this.
Thanks,
Sri
Hello,
I'm having this difficulty to create multiple external vSwitches using NIC teaming. SwitchIndependent is the only option I can utilize since I just have one Layer 2 switch. With LoadBalancingAlgorithm i'm leaving it to PowerShell (-WhatIf usually report it will use 'TransportPort' if no algorithm specified to determine that for me, since the objective is to be able to carve multiple external switches (for management, VMs traffic, clustering etc) using NIC teaming based on only two physical NICs in server.
Hyper-V Server 2012 R2 has identical 2x GBoE NICs installed. Say NICs are named GBNIC1/GBNIC2. They both are connected to same switch. First I create a NIC teaming using following:
1. Create NIC team using GBNIC2/GBNIC2
new-NetLbfoTeam -Name TestTeam -TeamMembers GBNIC1,GBNIC2
Above command results in a team; having a teamed NIC with name "TestTeam". Now this team is ready to host external switches.
2. Create external switch based on teamed NIC "TestTeam"
Next I would like to create an external switch. 1st external switch is created using following command:
new-VMSwtich -Name e-vSwitch1 -NetAdapterName TestTeam -AllowManagementOS 0
Above command results in an external switch created fine.
3. Create additional external switch based on same teamed NIC "TestTeam"
After 1st external switch "e-vSwitch1" is created, repeaing same command in step2 with a different value for -Name (for example "e-vSwitch2") it complains stating the "TestTeam" interface is already bound to another exetrnal swtich.
Question: Can we not create more than 1 external switch using NIC teaming ? was this not the purpose of NIC teaming; to be bale to carve out multiple external networks and breaking free from one external swtich--to--one physical NIC in host?
Please advise where/what is wrong?
Regards,
Shahzad.
We have moved from vmware to hyper-V virtualization.
We have windows server 2012 and sql server 2012.
When executing some query on SQL server the CPU time is much greater than CPU time for the same query on the same sql server with the similar resources but on vmware virtualization.
(the query doesn't produce IO, since all data pages are in RAM - so, the problem is CPU)
I have tested the most simple queries as the most complex queries with the same execution plans on both servers. There is always similar difference in cpu time, couple of times slower.
Is there some well known configuration of hyper-v, which is optimal for running sql server on it? What should i check, any idea?
Hello,
Apologies if this is already answered elsewhere. I just can't find anything quite like what I'm looking for.
We are running SBS 2011 on our server. It comes with two remote desktop licences but we need more. It now appears that I cannot add extra licences to the server as it is running SBS and I'm told that the only thing I can do is purchase Windows Server 2012 to run on a separate machine which will give me two more remote desktop licences with it, and I can purchase packs of CALs to increase the amount of RD users that I have logging in.
a) Is this correct - the cost is going to be pretty prohibitive.... or is there any other alternatives?
b) If this is correct, what version of Windows Server 2012 will I need to buy to give me the option of adding more CALs at a later date?
Many thanks to all who contribute in this forum. Look forward to hearing from you.
We have around 100VMs .I want to ask about an error I got in our environment recently .And i searched everywhere and a bit confused about VMQs as I got this error in HyperV Cluster hosts.
“Available processor sets of the underlying physical NICs belonging to the LBFO team NIC /DEVICE/{D2345946-C500-492B-AA6F-1DC2FF258E94} (Friendly Name: Microsoft Network Adapter Multiplexor Driver) on switch 8E2B961A-4004-496D-B83B-6EFDFF639B9A (Friendly Name: ConvergedSwitch) are not configured correctly. Reason: The processor sets overlap when LBFO is configured with sum-queue mode.”
We have 4 nodes each with :
CPU:2x8 Cores=16 Cores and 32 Logical Processors.Hyper Threading enabled.
Network:2x10 Gbps
OS: Windows Server 2012 R2
One network Team :
Teaming Mode: Switch Independent.
Load Balancing Mode: Dynamic.
Standby adapter: None (All adapters active)
One virtual switch and two virtual NICs with the allow management OS access to the switch set to true .
What would be the recommended settings of VMQ or dVMQ ?and should I leave VMQ enabled on the virtual machines ?
We are a VMWare workshop but interested in the new windows 2012 R2 Hyper-v. So I've set up a lab with two desktop PC running Windows 2012 R2 to test the Network Virtualization feature. However when trying to use Powershell to enable it on the NIC, I received an error (see below).
Enable-NetAdapterBinding Ethernet -ComponentID ms_netwnv
Enable-NetAdapterBinding : No matching MSFT_NetAdapterBindingSettingData objects found by CIM query for instances of
the ROOT/StandardCimv2/MSFT_NetAdapterBindingSettingData class on the CIM server: SELECT * FROM
MSFT_NetAdapterBindingSettingData WHERE ((Name LIKE 'Ethernet')) AND ((ComponentID LIKE 'ms[_]netwnv')). Verify query
parameters and retry.
At line:1 char:1
+ Enable-NetAdapterBinding Ethernet -ComponentID ms_netwnv
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (MSFT_NetAdapterBindingSettingData:String) [Enable-NetAdapterBinding], C
imJobException
+ FullyQualifiedErrorId : CmdletizationQuery_NotFound,Enable-NetAdapterBinding
Further, I do not see ms_netwnv as a component of my NIC. Is there some configuration that I'm missing?
Thanks a lot!
