Questions tagged [hyper-v-server-2012-r2]

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14
votes
2answers
12k views

Is ReFS ready to host production VHDXs on Hyper-V 2012 r2 clusters?

One of the new features that I didn't see listed in all the "Windows Server 2012 r2" posts is that Clustering now supports CSVs that are formatted with ReFS. So, naturally, I would like to change the ...
9
votes
4answers
2k views

Do I need an antivirus program in each virtual machine?

I have a 2012 R2 Hyper-V host running System center endpoint protection. There are two virtual windows servers being hosted by it. I have all .vhdx drives in a folder on d:/server/ Can I trust the ...
9
votes
4answers
28k views

Do Hyper-V Virtual Machine Guest Operating systems need to be shut down before restarting Windows Server 2012 R2 they are running on?

I am fairly new to using Hyper-V. I am trying to learn the best practice for shutting down and restarting my server when virtual machines are running on it. I have a physical server running MS ...
8
votes
2answers
42k views

Can't connect Hyper-V Server 2012 R2 after Windows 10 update?

I have a domain joined HyperV Server Core 2012 R2 machine, and a domain joined service is enabled and allows access from this computer. By default, the WinRM firewall exception for public profiles ...
7
votes
1answer
936 views

Hardware requirements for 100 virtualized high performance Windows 7 desktops?

We are debating whether to add Client Hyper-V or VMWare Player Pro to new Windows 10 desktops later this year and have our developers run their developer tools in a Windows 7 VM on their local desktop....
7
votes
1answer
4k views

Better to share File Services role with Active Directory DC role OR with the RDS Terminal Server role?

We are a small business setting up a new server... budget is limited of course. I have ~500GB of data to share that needs to be stored locally on the single server we have. Host Server: Dell ...
7
votes
4answers
13k views

Two-Node Server 2012 R2 Hyper-V Cluster: Is it possible use local physical disks in the cluster?

Looking at the following Clustered Shared Spaces TechNet article, and it looks like this only applies to hosts sharing a JBOD enclosure by way of external SAS backplane. However, each host in the two-...
7
votes
1answer
18k views

Hyper-V 2012 R2 on HP ProLiant DL380 G5? [closed]

Are there any BIOS settings that I need to change on a HP ProLiant DL380-G5 to get Server 2012 R2 hyper-V role working? "Intel Virtualization Technology" is enabled, is there anything else I need to ...
6
votes
3answers
12k views

Best practice to disable SpeedStep for Hyper-V hosts?

I'm analyzing a problem where performance of CPU-bound workloads inside virtual machines often (not always) is way below what we would expect based on the underlying hardware. We're using Hyper-V on ...
5
votes
1answer
725 views

Get back hyper-v VMs after in place reinstall of host OS

I have standalone win 2012 r2 server with hyper-v on it. It is my test server I use for experiments so it can be turned off anytime. That's not a problem. Is it possible to import 2012r2 VMs to 2016 ...
5
votes
3answers
16k views

WDS 2012 R2 Server

Background: WDS Server 2012 R2 (runs on a 2012 R2 Hyper-v server), DHCP server runs on a different server in a different physical LAN. Both Lans go into the same Layer3 switch. Currently all my ...
5
votes
2answers
10k views

INACCESSIBLE_BOOT_DEVICE on Hyper-V 2012 R2 virtual machines

I have a Hyper-V 2012 R2 cluster, 4 Dell PowerEdge R620 servers connected to a Dell PowerVault MD3600F storage array by means of FC connections; it's all pretty straightforward, all servers run ...
4
votes
3answers
568 views

How does CSV cache behave under memory load?

We're looking at using Microsoft's CSV cache feature in our new Hyper-V 2012 R2 clusters: It's enabled by default, with 512MB allocated to each CSV. The maximum memory that can be assigned is 80%. ...
4
votes
2answers
21k views

Cannot remote desktop into a non-domain joined workgroup Windows Hyper-V Server 2012R2 [closed]

Installed Hyper-V Server 2012R2 on a server. Did NOT join the server to a windows domain. Via sconfig.cmd I configured the network adapter, enable icmp, verified I could ping other PCs on the same ...
4
votes
4answers
2k views

Error in connecting to HyperV Server

Greetings fellow admins, History, I recently installed Windows HyperV 2012 on HPZ600 Joined the existing windows Active Directory domain, add the computer on to my Debian DNS Server. No Errors. I ...
4
votes
2answers
10k views

How do I upload an ISO to the Hyper-V data store?

I've just installed Windows Hyper-V Server 2012 R2 and I'd like to put some OS ISOs on the data store. How do I do this? I've configured remote administration so I can connect to the server using ...
4
votes
3answers
16k views

Server 2012 R2 - how to delete a file that is “open in System”?

I am using Server 2012 R2 Datacenter Core. It is one of our Hyper-V hosts. I manage it from my workstation using Hyper-V manager, and manipulate files through the admin share. I created a VM, then ...
4
votes
1answer
375 views

Is it possible to reclaim unused space on Server 2008r2 VM without downtime?

We have a production server that is used 24/7, running inside Hyper-v. The guest OS is Server 2008 R2. It has a dynamically expanding VHDX and is very close to reaching the maximum size. Is it ...
4
votes
2answers
8k views

Any known fixes for Hyper-V host networking randomly stops responding?

We run several HP DL380 Gen8 servers as Windows 2012 R2 Hyper-V hosts. Randomly, they stop responding on the customer NIC (ie the one connected to the virtual switch). Customers are disconnected from ...
4
votes
1answer
339 views

Virtualizing branch office servers

I have several branch offices with a single server at each site. These servers each functions as domain controller, DNS, DHCP, file and print server, and ConfigMgr distribution point. They currently ...
4
votes
1answer
4k views

What are the best practices for NIC teaming in Server 2012 R2? Broadcom or Windows software?

I have a Windows 2012 R2 Hyper-V cluster with two Broadcom adapters for my LAN connection. Currently, we have a virtual switch set up with SCVMM, that teams together both NICs using Windows software ...
4
votes
1answer
114 views

Ensure that two HyperV VMs run on the same cluster node

I'm running a Hyper-V cluster with three nodes that host a collection of VMs between them. When we need to service a node we can live migrate the roles on that node to one of the others. What is the ...
4
votes
1answer
834 views

How to enable RSS on a virtual NIC created on a HyperV host?

I created an "Internal virtual switch" to allow the Hyper-V virtual machine to communicate with the host. This step creates a virtual NIC on the host. This virtual NIC however does not have the ...
3
votes
2answers
246 views

Hyper-V Point to Point using FC HBA

Is it possible to connect Point to Point two Hyper-V servers using FC HBA to replicate data without connection to external storage?
3
votes
3answers
7k views

Guest VM showing HIGH memory usage when nothing is using the memory

I have a guest VM setup in my Hyper-V environment that I'm trying to us dynamic memory with. The following settings are being used... Startup RAM: 8192 Minimum RAM: 2048 Maximum RAM: 8192 Memory ...
3
votes
2answers
110 views

How can I change the location of a virtual machine hard drive location?

I have created a windows server 2012 r2 server to be used as a domain controler but I left the hard drive on the C: drive, instead of saving it with all other virtual machine stuff on the D: drive. ...
3
votes
2answers
221 views

High Availability on DAS HPE

Anyone who can assist me? I currently have a DL360 Gen9 HPE server Directly attached to HPE MSA 2040 device (DAS). I now need to ensure HA on the server level, is it possible to have FO cluster (...
3
votes
1answer
747 views

Unable to update PowerShell with “couldn't complete the updates undoing changes” error

I have a Windows Server 2012 R2 instance running on Hyper-V that I'm attempting to update from PowerShell 4.0 to PowerShell 5.1. Once the update has been applied, I reboot the server to apply the ...
3
votes
1answer
2k views

Different Hyper-v Integration Services Versions

I'm trying to get a grasp on these different hyper-v integration services version numbers. If I go on the hyper-v host and check the registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\...
3
votes
1answer
6k views

Disk IO Performance Difference — Hyper-V / CSV — Guest vs Host

I have two different Hyper-V 2012 R2 environments that use iSCSI to connect to their virtual machine storage. While the environments are different (one is all 10 GB whereas the other is mixed 1 GB / ...
3
votes
0answers
168 views

On-prem Hyper-V VM replicate to Azure

So I have a question. I'm used to replicating my VMs to azure using site recovery. Im now facing an issue with one of our clients having a very slow upload speed and needing to send the initial copy ...
3
votes
1answer
7k views

Hyper-V USB-Serial cable mapping to virtual machine

Windows Server 2012r2 running Hyper-V with a WinXP 32-bit VM. There is a particular application that will only run on WinXP that uses a serial connector to interface with an old diesel governor. I ...
3
votes
2answers
1k views

Hyper-V guest loses network access when virtual switch port is in trunk mode

I have guest VM on a Windows Server 2012 R2 machine running Hyper-V. Currently, the guest is using the native vlan (vlan ID 1). I can communicate with the guest from the host and from the network. ...
3
votes
2answers
2k views

Hyper-V 2012 R2 - MPIO config error “Access Denied”

I am in the midst of migrating to a Hyper-V 2012 R2 cluster and am currently configuring the first host to connect to the iSCSI CSV via MPIO. I "think" I have everything working properly but when I ...
2
votes
2answers
3k views

hyper-v 2012 r2 datacenter license

I am trying to set up a virtual machine to use automatic activation. This is the first time I have done this, and I got the following error: Windows Script Host Error: 0xC004F050 The Software ...
2
votes
1answer
162 views

Installing Hyper-V Role on Server 2012 R2 Without the Hypervisor

I have a Windows 2012 R2 Essentials Server running on top of Hyper-V Server 2012 R2. In server manager on the Essentials Server, I'd like to be able to manage other Hyper-V servers remotely. I'm ...
2
votes
2answers
6k views

Migrating VMs from hyper-v server 2012 r2 to windows server 2016

I'm turning in circles and I don't know what I could od more to make this work. I have 2 hyperv 2012R2 nodes in a cluster and 3 windows server 2016 nodes in another cluster. I want to live migrate ...
2
votes
1answer
60 views

Using a replica VM as main VM on replacement server - Hyper-V

I need to migrate a number of VM's to a new server and was wondering if it is possible to use the approach of replicating the VM's to the new server with the new server acting as the replica ...
2
votes
1answer
2k views

hyper-v fails to enable live migration

I'm trying to enable live migration on my Windows 2012 R2 hyper-v server, and it keeps failing. When I try through the GUI, I get an error that says "Error applying Live Migration changes. Failed to ...
2
votes
1answer
98 views

How to configure unpluged NICs on Hyper-V Server

I am installing a new host server based on Hyper-V server. Currently it has a network cable plugged-in and four more free network interfaces (including one ILO). When I start the server and reach the ...
2
votes
3answers
3k views

What hotfixes/updates does a new 2012 R2 Hyper-V server need?

I'm building several new 2012 r2 Hyper-V servers. One thing that I've read over and over again is that there are A LOT of hotfixes that i need to install on top of the regular OS updates Microsoft ...
2
votes
3answers
335 views

How to properly sync time for 3 Hyper-V machines, with Host NOT on domain of the VMs?

I understand that for production use, if you have a Hyper-V Domain Controller VM, and the host is on the domain as well, you should have the DC VM reach out to an external source for date/time, and ...
2
votes
2answers
215 views

Migrating Vmware to Hyper-V - number of Virtual CPU

I'm performing a migration from VmWare to Hyper-V and the Virtual CPU that you are assigning to a Virtual Machine is different and I'd like to know what should be the equivalent values when we move a ...
2
votes
2answers
2k views

Hyper-V Manager shows 3 sockets/NUMA nodes available but there are only 2

I just stumbled above this weird NUMA configuration on one of our Hyper-V virtual machines. How comes it shows 3 NUMA nodes? This is what the Task Manager (correctly) tells me.
2
votes
1answer
59 views

Hyper-v core can see network devices but network devices can't see Hyper-v core

Having a little issue with Hyper-v core. Network set up, connected directly to main router, I can ping all devices successfully from the Hyper-v cmd but can not ping the Hyper-v box from any other ...
2
votes
2answers
5k views

Configuring NAT on a Hyper-V Server 2012 R2

I have a Hyper-V Server 2012 R2 installed (because it's free). I have 2 virtual machines on this server, an Ubuntu Server (vLS) and a Windows Server (vWS). I only have 1 external IP address for the ...
2
votes
2answers
1k views

Blank iSCSI targets but targets still active

I have a Windows server 2012 R2 core server running Hyper-v with iSCSI attachments. Many months ago I configured the iSCSI connections and everything was working fine. I recently went to add an ...
2
votes
1answer
2k views

Can't access newly migrated Hyper V guest from LAN

I migrated a working Hyper-V guest server from one physical server to another by stopping the machine, copying the files manually, then importing by "registering in place". The import completed and ...
2
votes
1answer
368 views

Adding new processor to HyperV server?

I currently have a HyperV Server 2012 R2 running on a motherboard that supports two processors, but currently has only one. It has 64GB of memory. I'd like to now add a second processor, moving half ...
2
votes
1answer
708 views

VM freezing during WinPE boot up

Got SCVMM 2012 R2 up and running, created a single VM w/ dynamic memory (512MB-4096MB) and a 40GB dynamic disk. The host is configured for NIC Teaming using switch independent configuration. I setup ...