Teaming NICs in Hyper-V 2012 R2

Hi there,
I am trying to team NIC's in my new Hyper-V 2012 R2 server and I would like to simply confirm the order of doing things....
Should i first Install Hyper-V role and than create a network team or rather do the teaming first and than install Hyper-V role?
Thanks for clarification...

Since the title was about 2012 R2, I just thought I would insert a note here that Microsoft's recommendation for teaming has changed to Dynamic Distribution instead of Hyper-V Port Distribution as was recommended in 2012.
Three good resources on teaming:
http://blogs.technet.com/b/privatecloud/archive/2012/06/19/nic-teaming-in-windows-server-2012-brings-simple-affordable-traffic-reliability-and-load-balancing-to-your-cloud-workloads.aspx
- written by the product manager
http://www.microsoft.com/en-us/download/details.aspx?id=30160 - 2012
http://www.microsoft.com/en-us/download/details.aspx?id=40319 - 2012 R2
.:|:.:|:. tim

Similar Messages

Teamed NICs no longer work after upgrade to 2012 R2

Hi,
My Hyper-V installation on 2012 Data Centre used two teamed NICs as a Hyper-V virtual switch configured to connect to the external network.
After upgrading to 2012 R2 Data Centre I no longer have connectivity to the external network. VMs that use this switch no longer have network connectivity.
I've removed the switch and reconfigured but with no joy. I've also completely removed the Hyper-V role and reinstalled but again - no joy.
For the time being the NICs are configured as separate switches and all is OK.
Any ideas?
Many thanks,
Sean

Hi Sean,
I would like to check if you need further assistance.
Thanks.
Best Regards
Jeremy Wu

Hyper-v 2012 r2 slow throughputs on network / live migrations

Hi, maybe someone can point me in the right direction, I have 10 servers 5 Dell r210s and 5 Dell R320's, I have basically converted these servers to standalone hyper-v 2012 servers, so there is no clustering on any at the moment.
Each server is configured with 2 1Gb nics teamed via a virtual switch, now when I copt files between server 1 and 2 for example I see 100MBs throughput, but if I copy a file to server 3 at the same time the file copy load splits the 100MBs throughput between
the 2 copy processes. I was under the impression if I copied 2 files to 2 totally different servers the load would basically be split across the 2 nics effectively giving me 2Gbs throughput but this does not seem to be the case. I have played around with tcpip
large send offloads, jumbo packets, disabled vmq on the cards, they are broadcoms. :-( but it doesn't really seem to make a difference with all of these settings.
The other issue is If I live migrate a 12Gb vm machine running only 2gb ram, effectively just an o/s it takes between 15 to 20 minutes to migrate, I have played around with the advanced settings, smb, compression, tcpip not real game changers, BUT if I shut
town the vm and migrate it, it takes, just under 3 and a half minutes to move across.
I am really stumped here, I am busy in a test phase of hyper-v but cant find any definitive documents relating to this stuff.

Hi Mark,
The servers (hyper-v 2012 r2) are all basically configured with ssvmm2012R2 where they all have teamed 1Gb pNics, into a virtual switch, then there are vNics for the Vmcloud, live migration etc. The physical network is 2 Netgear Gs724T switches which
are interlinked and each servers 1st nic is plugged into the switch1 and the second nic is plugged into the switch2.See Below Image) The hyper-v port is set to independent Hyper-v load balancing.
The R320 servers are running raid 5 sas drives, the R210s have 1Tb drives mirrored. The servers all are using DAS storage, we have not moved to looking at using iscsi and san is out the question at the moment.
I am currently testing between 2x 320s and 2x R210s, I am not copying data to the vm's yets, I am basically testing the transfer between the actual hosts at the moment by copying a 4Gb file manually, After testing the live migrations I decided to test to
see the transfer rates between the servers first, I have been playing around with the offload settings and rss, what I don't understand is yesterday, the copy between the servers was running up to 228Mbs ie (using both nics) when copying
the file between the servers, and then a few hours later it only was copying at 50/60Mbs, but its now back at 113Mbs seemingly to be only using one nic.
I was under the impression if you copy a file between 2 servers the nicks could use the 2gb bandwidth, but after reading many posts they say only one nic, so how did the copies get up to 2Gb yesterday. Then again if you copy files between 3 servers, then
each copy would use one nic, basically giving you 2Gbs, but this is again not being seen.
Regards Keith

Hyper-V 2012 r2 Clustering issue

Hi All
We have the following issue and I just thought of why this could be happening
We are using a 3 node cluster with a witness disk
The problem is that the nodes in the cluster fail daily and its not a specific node it happens to any of them, but there is always 1 online thou
Here is the specs we are running :
*3 identical high end desktop hardware
*Server 2012 std R2
*ISCSI using free nas OS on a separate physical machine
*Teamed NIC's for Management, Clustering, ISCSI and Migration with weights defined
*9 VM's shared on this cluster between the 3
*The server have the exact same config except for the one server which is also running hyper-v with 1 vm which has our AD on
*Currently there is no backup software running for these VM's
*All the update have been done but no hot-fixes have applied
My theory why the system is crashing is because the 1 Host is running the AD VM on the HyperV which is different setup compared to the other servers.
Could this be the issue ?
Thanks

What does the validation wizard tell you? The validation wizard should always be the first thing to run when trying to troubleshoot, as it does hundreds of tests on the environment and will alert you to anything it finds wrong or questionable.
Out of the box, it sounds like you are running an unsupported configuration since you state it is configured with "3 identical high end desktop hardware". One of the basic requirements of clustering is that you use hardware that the manufacturer
has tested for supporting Windows Server 2012 R2.
www.windowsservercatalog.com lists all that hardware. Since you are using desktops, I feel comfortable in saying that those servers are most likely not on the list. That is not to say that clustering won't work, but it does mean that you are
running an unsupported configuration. Since clustering is usually done to provide highly available access to business critical applications, building the environment on unsupported hardware is not a good way to start. This also means that you might
be using NICs that are not of server quality, meaning that you may be running into networking issues, as suggested by Darren. Then there is your iSCSI configuration. The validation wizard will tell you if you have issues with the storage - a free
NAS OS may not provide the features necessary for clustering. Suggestion is to get proper hardware. What you are describing might be okay for a learning lab, but not for production.
. : | : . : | : . tim

Hyper-v 2012 R2 Live migration issue in 2003 Domain function Level

hi Team ,
i recently build 2012 R2 Hyper-v Cluster with three node. Everrything working fine with out any issue . Cluster working also fine. Later i came across one issue when tried to Live migration virtual machine from one host to another . it failed all the time
while quick migration is working . i gone through few articles and find it is known issue with hyper-v 2012 R2 where domain functional level is set to 2003 . although they have provided Hotfix but no solution.
http://support.microsoft.com/kb/2838043
Please let me know if any one face similar issue and able to resolve by any hotfix. My host are updated .
Thanks
Ravindra
Ravi

Hi Ravi1987,
The KB2838043 is applied for Server 2012 node, Could you offer us the related cluster error event id, or you can refer the following article to check your cluster
network binding order is correct or not.
Configuring Windows Failover Cluster Networks
http://blogs.technet.com/b/askcore/archive/2014/02/20/configuring-windows-failover-cluster-networks.aspx
You can try to install recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters first, then monitor this issue again.
The KB download:
Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters
http://support.microsoft.com/kb/2920151
More information:
Windows Server 2008 R2 Live Migration – “The devil may be in the networking details.”
http://blogs.technet.com/b/askcore/archive/2009/12/10/windows-server-2008-r2-live-migration-the-devil-may-be-in-the-networking-details.aspx
I’m glad to be of help to you!

Change Hyper-V 2012 R2 failover cluster management subnet

Hi,
We have an existing Hyper-V 2012 R2 Failover cluster. Virtual machines are live on this cluster. The networking team has decided to reorganise the network subnets. As a consequence we need to change the management IPs of our Hyper-V failover
clusters.
What are the possibilities?
Evect 1 node from the cluster, set correct management IP on the evicted cluster. Create a single-node cluster. Mask a new LUN to the single-host cluster. Execute a shared nothing live migration of the VMs which are hosted on old cluster.
Kr,

Hi Kr,
You can refer the following similar scenario article:
Changing Hyper-V Cluster Virtual IP Address (VIP) After Layer 3 Changes
http://blogs.technet.com/b/chrad/archive/2011/09/16/changing-hyper-v-cluster-virtual-ip-address-vip-after-layer-3-changes.aspx
Change IP address Hyper-V Cluster
http://bartvanvugt.blogspot.com/2012/01/change-ip-address-hyper-v-cluster.html
More related third party article:
Change IP address Hyper-V Cluster
http://bartvanvugt.blogspot.com/2012/01/change-ip-address-hyper-v-cluster.html
I’m glad to be of help to you!
We
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Any advice on mixing broadcom and intel iscsi nics between hyper-v hosts?

Hello,
Way back in 2008 when we configured our virtualized datacenter (used Virtual Iron, now defunct) it was recommended practice to use identical iscsi cards for all hostnodes. We have since migrated to hyper-v 2008 r2, and are now moving on to hyper-v
2012 r2. We are currently spec'ing out a new hostnode, and I'm looking for advice on whether it's still the recommended practice to keep all iscsi cards as similar as possible.
The hosts will be connected to a MD3220i SAN.
The reason I'm asking is because we currently use Broadcom's 5709c's in all our hosts. They have had their problems, so I'd like to move away from them. Right now I have my eye on the Intel i350's. It's a choice between the two since those
are the only affordable offers we have. I did a quick search online and found that Intel iscsi cards are much preferred over Broadcoms. It's not in our budget to switch out all existing cards with intel's, so I'm wondering if it's now considered
relatively safe practice to let iscsi cards from different manufacturers play together, since the technology has become more mature. Any advice would be welcome.
Thanks in advance

Yes, it is still a recommended practice to use the same vendor for critical components across the cluster. But it is not a requirement. It is recommended to use common hardware because management/troubleshooting is easier. If there is a networking
problem and you are using two different vendors, which one is NOT going to say to contact the other vendor because, of course, it is not 'my' problem.
You will also get some warnings in the cluster validation wizard. These are warnings, so they don't prevent the building of the cluster, but they are warnings for good reason.
Anytime you have two different vendors, that is going to be a potential point of problem when you need to debug. And because neither vendor is likely to test their environment with the other vendor's products, they may say they don't support the configuration
you are trying to put together. So even though the validation wizard accepts it with warnings, you may end up with something that is unsupported by the NIC vendors. Ask them what their stance is.
. : | : . : | : . tim

3 Node hyper-V 2012 R2 Failover Clustering with Storage spaces on one of the Hyper-V hosts

Hi,
We have 3x Dell R720s with 5x 600GB 3.5 15K SAS and 128 GB RAM each. Was wondering if I could setup a Fail-over Hyper-V 2012 R2 Clustering with these 3 with the shared storage for the CSV being provided by one of the Hyper-V hosts with storage spaces installed
(Is storage spaces supported on Hyper-V?) Or I can use a 2-Node Failover clustering and the third one as a standalone Hyper-V or Server 2012 R2 with Hyper-V and storage spaces.
Each Server comes with QP 1G and a DP10G nics so that I can dedicate the 10G nics for iSCSI
Dont have a SAN or a 10G switch so it would be a crossover cable connection between the servers.
Most of the VMs would be Non-HA. Exchange 2010, Sharepoint 2010 and SQL Server 2008 R2 would be the only VMS running as HA-VMs. CSV for the Hyper-V Failover cluster would be provided by the storage spaces.

I thought I was tying to do just that with 8x600 GB RAID-10 using the H/W RAID controller (on the 3rd Server) and creating CSVs out of that space so as to provide better storage performance for the HA-VMs.
1. Storage Server : 8x 600GB RAID-10 (For CSVs to house all HA-VMs running on the other 2 Servers) It may also run some local VMs that have very little disk I/O
2. Hyper-V-1 : Will act has primary HYPER-V hopst for 2x Exchange and Database Server HA-VMs (the VMDXs would be stored on the Storage Servers CSVs on top of the 8x600GB RAID-10). May also run some non-HA VMs using the local 2x600 GB in RAID-1
3. Hyper-V-2 : Will act as a Hyper-V host when the above HA-VMs fail-over to this one (when HYPER-V-1 is down for any reason). May also run some non-HA VMs using the local 2x600 GB in RAID-1
The single point of failure for the HA-VMs (non HA-VMs are non-HA so its OK if they are down for some time) is the Storage Server. The Exchange servers here are DAG peers to the Exchange Servers at the head office so in case the storage server mainboard
goes down (disk failure is mitigated using RAID, other components such as RAM, mainboard may still go but their % failure is relatively low) the local exchange servers would be down but exchange clients will still be able to do their email related tasks using
the HO Exchange servers.
Also they are under 4hr mission critical support including entire server replacement within the 4 hour period.
If you're OK with your shared storage being a single point of failure then sure you can proceed the way you've listed. However you'll still route all VM-related I/O over Ethernet which is obviously slower then running VMs from DAS (with or without virtual SAN
LUN-to-LUN replication layer) as DAS has higher bandwidth and smaller latency. Also with your scenario you exclude one host from your hypervisor cluster so running VMs on a pair of hosts instead of three would give you much worse performance and resilience:
with 1 from 3 physical hosts lost cluster would be still operable and with 1 from 2 lost all VMs booted on a single node could give you inadequate performance. So make sure your hosts would be insanely underprovisioned as every single node should be able to
handle ALL workload in case of disaster. Good luck and happy clustering :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

Hyper-V 2012 R2 QoS for a specific set of VMs?

I'm trying to figure out how to setup SCVMM 2012 R2 with a Logical Switch to support QoS for a specific set up VMs. Specifically, I have a subnet that will have a variety of VMs running, but within that subnet I have a handful of VMs that need a unique
software QoS setting. Is this possible?
Blog: www.derekseaman.com, VMware vExpert 2012/2013

Hi VderekS，
In addition please refer to the following link ：
http://blogs.technet.com/b/privatecloud/archive/2013/04/03/configure-nic-teaming-and-qos-with-vmm-2012-sp1-by-kristian-nese.aspx
Best Regards
Elton Ji
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
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Symantec Antivirus Best Practice for Hyper-v 2012 R2 Cluster

Hi Team ,
I am Working with Hyper-v 2012 R2 Cluster with 5 Node . All are working fine .
Now i am Planning to install Antivirus Symantec in to each node. Please let me know if there is any Best practice guide to install Symantec Antivirus for Hyper-v 2012 R2 Cluster node.
I am using full version of Windows 2012 R2 with hyper-v.
Thanks
Ravi
Ravi

I would also look strongly at no antivirus as well, but if you do, here are the recommended exclusions and possible issues with Anti-Virus to look out for.
Look for the Hyper-V section:
http://social.technet.microsoft.com/wiki/contents/articles/953.microsoft-anti-virus-exclusion-list.aspx
Big things to stay away from from a VM level too:
1. Do not have a set time when all VMs will kick off a scheduled full disk scan. This can create an I/O storm on your hosts as well as saturate the CPUs as well. Look for products or settings that allow for randomization of full disk scans on
the VMs or do not do full disk scans and only keep the real time scanners active on the VMs for incoming writes.
2. Watch for Antivirus products that update all the VMs at the same time. Again, sometimes you can randomize or exclude a scheduled full disk scan, but sometimes an automated update that kicks off say at 12am can then automatically kick off a
mini scan. This can also create disk I/O and CPU storms.
The problem that still exists with many Antivirus products today is that they try to scan as fast as they can and then get out of the way. This works ok for endpoint desktops or laptops, but when you have 50 or more VMs on a host all ramping up trying
to get done as quick as they can, then this can cause some issues.
Rob McShinsky (www.VirtuallyAware.com)
VirtuallyAware - Experiences in a Virtual World (Microsoft MVP - Virtual Machine)

Windows Operating system Fine tuning for Hyper-v 2012 role

Hi Team,
we are installling windows 2012 Hyper-v in GUI Mode in Datcenter Edition. i have 5 host and each carrying 128 GB of RAM with 600 GB of RAID harddisk.
please let me know if we have any fine tuning guide for windows 2012 OD to host hyper-v role which can guide the Virtual/Page file memory, partion size and etc.
Ravi

Hi,
Also you can refer the following KB it have a checklist about optimizing Hyper-V environment:
Checklist: Optimizing Performance on Hyper-V
http://msdn.microsoft.com/en-us/library/dd722835(v=bts.10).aspx
Regards.
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Teaming NICs and Assigning to VMs

Hi!
Is it better to team the NICs on Hyper-V Host and then assign it to VMs after creating the virtual switch or assigning separate physical NICs is better if there are only 2 or 3 VMs.
Thanks.

Hi create_share,
Teaming has more advantage than single NIC .
Bandwidth aggregation
Traffic failover to prevent connectivity loss in the event of a network component failure
For details please refer to following link:
http://technet.microsoft.com/en-us/library/hh831648.aspx
Best Regards
Elton Ji
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

Hyper-V 2012 R2 creating a new vhdx and copying from a source vhdx will physical file size reduce?

Hi,
I'm running Hyper-V 2012 R2 as part of Server 2012 Essentials.
As seems common from other threads I've read I have created an expanding VHDX with a maximum size too large (almost the same size as the physical disc it lives on). Although there is only around 350GB of data in the VHDX, the actual file size is approaching
900GB on the host.
I'm using the "Add New Virtual Disk" wizard to make a new VHDX to replace this massive file. I want the contents of the old VHDX to be copied to the new one so in the add disk wizard I selected the option to copy the contents of my new disk from
the original.
So my question is: the source VHDX is 900GB, the data inside the is around 350GB. What size is my new VHDX likely to be? Is it likely to reduce to nearer the actual data size?
I'm asking because I'm currently running this operation to an external USB drive and it's painfully slow - going to take hours to complete. If the size isn't going to reduce I may as well cancel it and look for a better option.
Any comments appreciated.
David

I am assuming that you are using dynamic virtual disks for your VHDX (they can be dynamic or fixed).
And, it is usually some type of transaction, backup agent, of the like that causes this type of behavior. Some action that requires a cache on disk that is later deleted.
There is a shrink action that can be done, but that will not optimize fully.
The way to fully optimize is to mount the old virtual disk and create a new virtual disk and mount it, and then copy the contents from one to the other. This lays the files out in a nice orderly way, without anything being written to the end of the
virtual disk causing it to expand strangely.
Over time, if you are still using the backup agent (for example) that got you into this situation, you will be there again.
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.

Hyper-V 2012 Breaks Ubuntu 10 and 11

Hi All,
With Hyper-V 2008 R2 installing Ubuntu 10.10, 11.04 and 11.10 used to work with no issues. The synthetic network driver worked and was stable.
However, we recently upgraded to a Hyper-V 2012 environment. Upon moving the exsting Ubuntu VMs (versions above) all kernel panic if the Synthetic NIC is loaded. If the legacy NIC is loaded the performance is appalling (pinging local gateway at over
2000ms).
A fresh install of those OSs also fails, with a kernel panic as soon as you include the synthetic network adapter in the VM profile. The legacy network adapter misbehaves on all of them and is not usable in production.
Note that Ubuntu 12 and 13 both work 100% fine on both Hyper-V 2008 R2 and Hyper-V 2012.
Ubuntu 10.10, 11.04, 11.10 work 100% fine on Hyper-V 2008 R2, but not on Hyper-V 2012.
We have some clients who need to run Ubuntu 10 or 11 and we have no way of continuing to provide them services using Hyper-V. Does anyone have a solution for this (please only answer if you have a tested solution, we run hundreds of VMs across many operating
systems in clustered and non-clustered environments, so we know what we are doing)?
Thanks,
- Will

Hi,
In Windows Server 2008, Windows Server 2008 R2, Windows Server 2008R2 with SP1 and Windows Server 2012 Hyper-V supported operating system list, the supported Ubuntu version is 12.04. And it mentions for Ubuntu 12.04 Integration services do not require a
separate installation because they are built-in.
Integration services here include:
Drivers: IDE, SCSI, networking, and mouse
Services: Time synchronization, operating system shutdown, and heartbeat
Since integration services are built-in from Ubuntu 12.04, so it should also built-in in Ubuntu 13 or later version.
But for previous Ubuntu version, there's no guarantee that it can work with Windows Server 2012. You may contact Ubuntu support to check whether they have some solution or extra driver package to run previous Ubuntu in Windows
Server 2012.
Thanks for your understanding and support.
Hyper-V Overview-Windows Server 2012 Hyper-V supported OS list
http://technet.microsoft.com/en-us/library/hh831531.aspx
About Virtual Machines and Guest Operating Systems-Windows Server 2008
http://technet.microsoft.com/en-us/library/cc794868(v=ws.10).aspx
Ubuntu System support
http://www.ubuntu.com/support/
Hope this helps!
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Hyper-V 2012 and TMG 2010/NLB

Hi there,
I have an issue with TMG 2010 on Hyper-V 2012 - the Setup:
- Windows 2012 Hyper-V
- TMG 2010 SP2 Rollup 4 running on W2K8 R2
TMG 2010 (Array Node1) Network
Internal Interface: 10.0.0.10/24 (Route to 192.168.11.0/24 over 10.0.0.1)
IntraArray: 192.168.10.10/24
Perimeter: 10.0.60.10/24 GW 10.0.60.100
TMG 2010 (Array Node2) Network
Internal Interface: 10.0.0.11/24 (Route to 192.168.11.0/24 over 10.0.0.1)
IntraArray: 192.168.10.11/24
Perimeter: 10.0.60.11/24 GW 10.0.60.100
Domain Controllers:
192.168.11.10
192.168.11.11
The NICs of the TMG VMs are configured with the correct VLANs and on the Perimeter Interface as well as on the Internal Interface I activate MAC Address Spoofing.
Once I activate NLB on the Perimeter Interface all works fine. But NLB on the internal Interface does not work - I see that NLB got configured on Array Node 1 but the second one does not get the config nor is able to sync it´s configuration with Array
Node 1. ALso the Servers are not able to communicate with the Domain Controllers anymore. Once I deactivate MAC Address Spoofing on the internal Interface and remove NLB the Server are able to speak to the Domain Controllers...
Any suggestions?

Hi,
Can I just confirm you are using TMG console to enable NLB?
Also did you enable set this reg key on both your TMG servers? You need to make sure MAC Spoofing is enabled too.
HKLM\System\CurrentControlSet\Services\TCPIP\Parameters
IPEnableRouter RegDword 1
after enabling the key you may need to reboot both nodes.
Regards,
Denis Cooper
MCITP EA - MCT
Help keep the forums tidy, if this has helped please mark it as an answer
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Teaming NICs in Hyper-V 2012 R2

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