Hello,

Currently we are facing a problem regarding hard disk space.

Since i cannot add more hard disk (due to the lack of hard disk bays) i was wondering if it is possible to add storage from another server? 

Could you please help with some information?

Thank you.

Hello,

we have a Dell R730XD server that until last weekend run with Windows Server 2012. That server has dual Xeon CPUs and 256 GB RAM, RAID 10 of SAS disks and another one of SSD disks.

This server has 35 VMs and it did not show any performance issues. 11 of those VMs have replication enabled, and that also worked fine.

Now we have this server running Windows Server 2016, it has all updates and drivers installed, and without any other change the same VMs on the same hardware cant have replication enabled because the IO usage is extremely high. The IO its higher before the replication actually begins, when its creating a Reference Point.

The IO usage gets so high that event the SSD RAID 10 gets killed by it. This behaivior cant the normal, those same machines had replication without any issues with Windows 2012. I searched on the forum and uninstalled Windows Defender, some said that it can cause this kind of issued, but there was no luck.

Does anyone experience this issue? Any ideas are welcome!

Best regards,

Juan.

After the latest windows patch, all guest VMs on the host machine can reach the entire network without issue, but the host machine cannot reach anything past the virtual switch except for guest VMs.

So I cannot remote desktop into the host except if I remote desktop into a guest VM first, then from there remote into the host machine. 

Server uses Broadcomm NICs, latest driver (confirmed) and I tried removing and adding each NIC into the team (read somewhere that fixed someone else's issue). Neither have worked.

Hi Team,

I have a critical file server running on Windows server 2012 R2 two node Hyper V cluster, one of the data volume is running out of space, when i tried to expand the VHD the edit option is grayed out like shown in the below screenshot.

I read some articles which says if there is a checkpoint available on the VM,i will not be able to edit the VHD, as you can see there is a checkpoint taken on 12/01/2018 

I am worried if i delete the checkpoint , will i loose data , my question are as below.

1) Will deleting the checkpoint allow me to edit and expand the VHD is the checkpoint preventing me from expanding the VHD?

2) What is correct way to delete the VHD?

3) Will there be a data loss if i delete the VHD?

Regards

TechGUy,System Administrator.

Hello,

We have been having this issue for years and have no clue how to solve. 

We have several Hyper-V hosts (Physical HP servers running Windows server 2012 R2 ) on premises and have around 2-4VMs sitting on each host server. These host servers and VMs sitting on them sometimes stop working.

the issue is the following:

When the issue happens to host, the host suddenly stops responding (unable to access shared folder, RDP and other services) but still pigable. VMs sitting on the problematic host is still functioning like normal. 

When the issue happens to VMs, the VM suddenly stops responding (unable to access shared folder, RDP and other services) but still pingable.

When the issue happens to VMs, I still can see "Press Ctrl+Alt+Delete to sign in" screen from the Hyper-V console but unable to log in,

When this happens, I cannot do anything so I turn the VM off from Hyper-V console (if we shut it down  from Hyper-V console, it will stuck for 10-20 mins and give us an error). when this happens to a host server, I just do a hard shutdown.

any help or information would be really appreciated. Thank you in advance.

Today in morning we faced issues regarding cluster disk failures.

Below is the error we faced.

The validation report is run and found some warning can some expert help me to understand.

https://crescentpk-my.sharepoint.com/:u:/g/personal/osama_mansoor_crescent_com_pk/EUN8kP29fxBCs722GXxuLyYBlSX1LoufmDkIxOqBKN9c4Q?e=szzB9w

Hyper-V
Mouse not captured in Remote Desktop session.

---

Dear person reading this,

I have tried many solutions found on different forums.
All the solutions i tried didn't seem to work.

---

The solutions i tried was:

• CNTRL + ALT + LEFT ARROW
• Installing the Guest opperation system
• Installing Intergration Services (Option wasn't available in dropdown menu)
• Deleting the "VM Guest Additions or something similair to that. (Wasn't there)

---

scenario:

• We have Hyper-V server 2016.
• Connecting with the Hyper-V Server through "Remote Desktop Session". (Probebly the cause of this problem)
• Other VM's work fine, this newly created VM is the only VM with this problem.
• Mouse pointer is a "tiny black box".
• when clicking gives the error message "Mouse not captured in Remote Desktop Session."
• VM was created from a .vhdx from custommers HDD (shouldn't be the problem, worked before in other cases)
• Am able to use the keyboard and nevigate through the OS.
  

---

If anyone has a solution pleas contact me.

Kind regards,

B-Mol

Hello there!

I've heard various debates on this but nothing current and no real good sources for reasoning. It would be good to find the current standing of this in 2019:

What is the ideal configuration of the Hyper-V Integrated Time Synchronization service in an environment where NTP is also used? For example, let's say there are a 4-6 VMs acting as NTP servers for other VMs on a network (please don't instead focus that it isn't a 'best practice' configuration -- that is off topic). Will the two time services interact with each other? Should Hyper-V Time Sync be disabled on the client VMs and/or the VMs running NTP services?

Thanks in advance!

Hello,

     I am sure this question has been asked before, however I have been unable to get this issue fixed. First, let me describe what I am trying to do. I want to setup a home lab with 3 servers, one to be the AD/DC, another for SharePoint and finally a SQL server. I have 3 server 2016 datacenter servers setup currently. No other software installed at this time. I wanted to get the network issues fixed before proceeding. Right now I have network access on all three servers using "obtain …. automatically".

So far every attempt I have made to give what will be the AD/DC  server a static IP has failed. No network connectivity. 

I am more of a programmer and network connection issues are not my specialty. 

Any advice on setting up the Hyper-V network?

thank you

Consider the following scenario:

Customer stores secondary backups of their Hyper-V VMs in the Acronis cloud backup service, as a fallback in case the primary offsite backup system fails or the buildings burn down or something.  They want to perform test restores to validate this approach, which essentially means downloading VHD files from Acronis's service to a Synology NAS, creating new VMs on a hypervisor, and attaching the downloaded VHD files to them.  The files still live on the NAS, not the hypervisor, because the files are very large and the hypervisor's own SSD storage is very expensive.

The 'portability' of these VHD files has never been an issue; we've always been able to copy them between hypervisors and run them.  However, this is the first time we're attempting to run a VM that has its VHD file on a NAS vs. direct-attached storage on the hypervisor itself.  The NAS share hosting the VHD files is mapped as a network drive on the hypervisor, which runs Server 2016 Standard.

When I attempt to attach a VHD file that's on the NAS to a new VM, I get the following error:

We've tried the following: 

--mounting a NAS-hosted VHD file using the hypervisor's Disk Management snap-in, to verify that we can see data there (works fine)

--as mentioned by this Brian Posey article, granting "Everyone" full control of the file temporarily, just to see if we can attach it to a VM (same error). Before anyone yells at me about security, this hypervisor and NAS are on a separate air-gapped network, and we undid the change immediately.

--using the icacls fix suggested in the same article (same error)

--copying one of the NAS-hosted VHDs to the hypervisor's own direct-attached storage, and attaching it to a VM.  (works fine!)

Neither the NAS nor the hypervisor are joined to an AD domain, so we're using passthrough authentication (same local admin account on both hypervisor and NAS).  Accessing the NAS's share via the hypervisor, we have no issues browsing subfolders, creating test .txt files, or changing permissions on test files, suggesting it's not a permissions or authentication problem.

What should we be trying next?  Thanks for your help!

I'm setting up a migration test server.  I have a Dell R610 with 2016 STD installed and Hyper-V for the host.  The server is connected to and a member of my work domain. I'm using two nics on the host machine, one connecting to the network (static ip) and a second (also connected to the network) for the VMs.  I've created a virtual switch that uses the second nic.

I've created a Server 2016 STD VM.  I can not get it to connect to anything.  I've tried leaving the virtual nic to dynamic ips and I've tried to add static ips.  But nothing is working.  What am I missing?

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Hi,

I am trying to move a windows 7 VM from Win 2012 Std R2 to Win 2012 Std but it is showing Operation failed. Is it due to the dissimilar versions of windows 2012? How to move a VM in the scenario? Can I just copy the VHDs to the other server and create a new VM with it?

Thanks.

Since applying Jan19 updates recently we have been having crashing issues with one of the nodes in 2016 H-V cluster

This seems to be related to overlapping CPU cores in the vswitch team although this error has only recently started after patching the servers recently.

Output from Get-NetAdapterRss|fl:

Name                                            : NIC2
InterfaceDescription                            : QLogic BCM57800 10 Gigabit Ethernet (NDIS VBD Client) #2
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : :0
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

Name                                            : vEthernet (Internal 10GB Logic Switch)
InterfaceDescription                            : Hyper-V Virtual Ethernet Adapter
Enabled                                         : False
NumberOfReceiveQueues                           :
Profile                                         :
BaseProcessor: [Group:Number]                   : :
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   :
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

Name                                            : NIC4
InterfaceDescription                            : QLogic BCM57800 Gigabit Ethernet (NDIS VBD Client) #2
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : :0
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

Name                                            : DMZ 1GB Logic Switch
InterfaceDescription                            : Microsoft Network Adapter Multiplexor Driver #2
Enabled                                         : True
NumberOfReceiveQueues                           : 0
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : 0:0
MaxProcessor: [Group:Number]                    : 0:38
MaxProcessors                                   : 4
RssProcessorArray: [Group:Number/NUMA Distance] : 0:0/0  0:2/0  0:4/0  0:6/0  0:8/0  0:10/0  0:12/0  0:14/0
                                                  0:16/0  0:18/0  0:20/0  0:22/0  0:24/0  0:26/0  0:28/0  0:30/0
                                                  0:32/0  0:34/0  0:36/0  0:38/0
IndirectionTable: [Group:Number]                :

Name                                            : NIC1
InterfaceDescription                            : QLogic BCM57800 10 Gigabit Ethernet (NDIS VBD Client)
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : :0
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

Name                                            : Internal 10GB Logic Switch
InterfaceDescription                            : Microsoft Network Adapter Multiplexor Driver #3
Enabled                                         : True
NumberOfReceiveQueues                           : 0
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : 0:0
MaxProcessor: [Group:Number]                    : 0:38
MaxProcessors                                   : 4
RssProcessorArray: [Group:Number/NUMA Distance] : 0:0/0  0:2/0  0:4/0  0:6/0  0:8/0  0:10/0  0:12/0  0:14/0
                                                  0:16/0  0:18/0  0:20/0  0:22/0  0:24/0  0:26/0  0:28/0  0:30/0
                                                  0:32/0  0:34/0  0:36/0  0:38/0
IndirectionTable: [Group:Number]                :

Name                                            : SLOT 1 Port 4
InterfaceDescription                            : Broadcom NetXtreme Gigabit Ethernet #4
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         :
BaseProcessor: [Group:Number]                   : :0
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

Name                                            : SLOT 1 Port 3
InterfaceDescription                            : Broadcom NetXtreme Gigabit Ethernet
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : 0:0
MaxProcessor: [Group:Number]                    : 0:38
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] : 0:20/0  0:22/0  0:24/0  0:26/0  0:28/0  0:30/0  0:32/0  0:34/0
                                                  0:36/0  0:38/0  0:0/32767  0:2/32767  0:4/32767  0:6/32767
                                                  0:8/32767  0:10/32767
                                                  0:12/32767  0:14/32767  0:16/32767  0:18/32767
IndirectionTable: [Group:Number]                :

Name                                            : SLOT 1 Port 2
InterfaceDescription                            : Broadcom NetXtreme Gigabit Ethernet #3
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         :
BaseProcessor: [Group:Number]                   : :0
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

Name                                            : SLOT 1 Port 1
InterfaceDescription                            : Broadcom NetXtreme Gigabit Ethernet #2
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : 0:0
MaxProcessor: [Group:Number]                    : 0:38
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] : 0:20/0  0:22/0  0:24/0  0:26/0  0:28/0  0:30/0  0:32/0  0:34/0
                                                  0:36/0  0:38/0  0:0/32767  0:2/32767  0:4/32767  0:6/32767
                                                  0:8/32767  0:10/32767
                                                  0:12/32767  0:14/32767  0:16/32767  0:18/32767
IndirectionTable: [Group:Number]                :

Name                                            : NIC3
InterfaceDescription                            : QLogic BCM57800 Gigabit Ethernet (NDIS VBD Client)
Enabled                                         : True
NumberOfReceiveQueues                           : 4
Profile                                         : NUMAStatic
BaseProcessor: [Group:Number]                   : :0
MaxProcessor: [Group:Number]                    : :
MaxProcessors                                   : 16
RssProcessorArray: [Group:Number/NUMA Distance] :
IndirectionTable: [Group:Number]                :

COuld someone pls confirm if the correct action would be: (NIC1 and 2 are the team members of the 'Internal 10GB Logic Switch')

Set-NetAdapterRss -name NIC1 -BaseProcessorNumber 0 -MaxProcessorNumber 7

Set-NetAdapterRss -name NIC2 -BaseProcessorNumber 8 -MaxProcessorNumber 16

thanks

Hi,

I was able to always connect to my Hyper-v server. When i changed my password on my dc username then i was not able to connect to my server. i get this error "an error occurded white attemting to connect to server... the operation on computer failed" and can't figured out what is happend.



Hi i have a server with hyper v running a few vms with some game servers  my isp provide me with 5 static ips and i have access to more if needed

what i am wanting to do is assign the static ips to the vms  right now  my isp router dose not have a lan network so i have tp link router with dhcp and my server  is connected to that on 192.168.0.8  with a subnet on 255.255.255.0 and default gate way of 192.168.0.1  my tp link router wan is 94.x.x.34 and my ips default gate way is is 94.x.x.33   with a subnet of 255.255.255.240 i still have 94.x.x.35-38 free that i would like to use 

i have tryed a few things but nothing works for me i have no idea what im doing tbh  

I utilize Shadow Copies (for quick file restore) on dedicated volume & Dedup on 2012 R2 servers.

If I convert existing shared disks (vhdx to vhds) I assume all Shadow Copies will be gone.

And Dedup?

Thanks

Seb

Hi, Could any tell me how can i connect my tape drive directly into hyper-v VM?

Hi,

we have a 4node HyperV cluster with Dell Poweredge Servers in our data center.

Today the VMs are stored on a SOFS Server with SMB3 on SAS HDDs.

We are now in evaluation of a Dell Unity All Flash System, and wonder how it works with a HyperV Cluster and SMB.

I have created a NAS Server on the Unity and a file share.

This share is accessible from all HyperV Servers and it seems to work so far.

I can move the machines without interruption between the Server, but there is one strange Thing.

If I change something in the config of a VM, the config is broken and the VM will not start anymore.

Does anybody what to do in such a Case?

Regards

Florian