2012 R2 Hyper-V Cluster Replication to Single Non-Cluster Host?

I can't seem to find a straight answer and in my testing, this doesn't seem to work. Is it supported to replicate from a 2012 R2 Hyper-V cluster to a remote, single 2012 R2 Hyper-V non-cluster host?

Yes, it's supported, and yes it works. The cluster uses the Hyper-V Replica Broker and the destination system does not.
Eric Siron Altaro Hyper-V Blog
I am an independent blog contributor, not an Altaro employee. I am solely responsible for the content of my posts.
"Every relationship you have is in worse shape than you think."
To replicate back to the primary site I'll need a replica broker at the DR site however, correct?

Similar Messages

Migrate data from a single node cluster to a single node cluster with CDOT 8.3

Hi, I have two FAS2240-4 in the office, one for production and the second one intended to use it for DR, the FAS with 18 disk of 2TB each that is in production has 3 disk for the root aggregate and the rest for data, so I need to wipe the system in order to take advantage of the HDD partitioning for the entry platforms in CDOT 8.3. The Second system is fresh installed with CDOT 8.3 with the Root-Data HDD partitioning so now I want to move the Data and configuration to replace the first cluster with the second one.Some body gave me a procedure to backup the configuration and restore it at the destination cluster but I believe that is not complete. After finish the procedure I have all duplicated and not working properly, even with missed data, so the procedure is: ---------------------------------------------------
SYSTEM CONFIGRUATION BACKUPS FOR CLUSTERED ONTAPSOURCE SYSTEM
set -priv diagnostic
cluster identiy show
system configuration backup create -backup-name myBackup.7z -node node1 -backup-type cluster (Create a node backup of node1)
system configuration backup upload -node node1 -backup myBackup.7z -destination ftp://[email protected] (Uploads a backup file to ftp)DESTINATION SYSTEM
## This would be done after setting up one node on the dr site, but prior to confguring the rest of the nodes
## you would basically stand up the system with ips and a base config, and load the config from the primary site
## and once it comes back up, you would setup & join the other nodes.
set -priv diagnostic
cluster identity show
system configuration backup download -node node1 -backup myBackup.7z -destination ftp://[email protected]
system configuration recovery cluster recreate -from backup -backup myBackup.7z
system node reboot -node node1
cluster identity show
cluster identity modify -name newcluster
cluster identity show
system configutration recovery cluster modify -recovery-status complete----------------------------------------------------After doing this then I have problems with the folowing:
- Volumes without properties
- Network interfaces down and mixed with the old and new system
- Aggregates with no info (This table is currently empty)- The node name is not able to rename it because it says that is already in use. I believe that I need more information in order to complete the procedure well.  I hope that you can help me with this. Best Regards, Miguel Valls

In Non-Exa data, I followed below steps, I am sure same will work in exadata.
Standby database creation using L0 backup restore
     While RMAN backup command on non-asm doesn't require change but restore in ASM requires you to add following kind of lines in restore script
          set newname for datafile 10 to '+Data02';
          set newname for tempfile 25 to '+Data10';
      After this you need to add
           restore database;
           switch datafile all;
           switch tempfile all;
Standby database sync up using SCN based incremental backup
Open Standby database in READ WRITE mode
Convert DB from standalone to RAC
Application doesn't need to be certified for Exadata, If your application runs on Oracle 11203 on RAC+ASM on OEL then it will run on Exadata as well.
One important thing to remember is that, using physical migration method like this you won't be able to get EHCC (hybrid columnar compression) benefit unless you do the table move after the migration so most of the time logical methods like- data pump is preferred over physical method. In Exadata, these methods run very very fast. It might be less effort and less downtime compare to Physical standby method so give it a try.
Thanks,
Abhi

6140 Replication Problem in Sun Cluster

Hi,
I am not able to mount a replicate volume from cluster system (primary site) to non-cluster system (DR site). Replication was done by 6140 storage. In primary site the volume was configured in a system with metaset under Solaris Cluster 3.2. and in DR site it was mapped in a non-cluster system after suspending the replication.
I even tried to mount the volume in DR site (non-cluster system) by creating a metaset and putting the volume under this and mount it from there. But this action also not working.
Following are the log of the errors:
drserver # mount -F ufs /dev/dsk/c3t600A0B80004832A600002D554B74AC56d0s0 /mnt/
mount: /dev/dsk/c3t600A0B80004832A600002D554B74AC56d0s0 is not this fstype
drserver #
drserver #
drserver #
drserver #
drserver # fstyp -v /dev/dsk/c3t600A0B80004832A600002D554B74AC56d0s0
Unknown_fstyp (no matches)
drserver #
I will be grateful if you have any workaround for this. Please note that, the replication from the non-cluster system is working fine. Only from the cluster system it is not working and showing above errors.

I am not sure how you can run Solaris 10 Update 8, since to my knowledge that is not released.
What is available is Solaris 10 05/09, which would be Update 7.
You are not describing what exact problem you have (like specific error messages you see), or what exactly you did to end up in the situation you have.
I would recommend to open a support case to get a more structured analysis of your problem.
Regards
Thorsten

2 Hyper-V Servers with Failover Cluster and a single File Server and .VHDs stored on a SMB 3 Share

I have 2 X M600 Dell Blades (100 GB local storage and 2 NICs) and a Single R720 File Server (2.5 TB local SAS storage and 6 NICs). I´m planning a Lab/developer enrironment using 2 Hyper-V Servers with Failover Cluster and a single File Server putting
all .VHDs stored on a SMB 3 Share on the File Server.
The ideia is to have a HA solution, live migration, etc, storing the .VHDs onm a SMB 3 share
\\fileserver\shareforVHDs
It is possible? How Cluster will understand the
\\fileserver\shareforVHDs as a cluster disk and offer HA on it?
Or i´ll have to "re-think" and forget about VHDs on SMb 3 Share and deploy using iSCSI?
Storage Spaces makes difference in this case?
All based on wind2012 R2 STD English version

I have 2 X M600 Dell Blades (100 GB local storage and 2 NICs) and a Single R720 File Server (2.5 TB local SAS storage and 6 NICs). I´m planning a Lab/developer enrironment using 2 Hyper-V Servers with Failover Cluster and a single File Server putting
all .VHDs stored on a SMB 3 Share on the File Server.
The ideia is to have a HA solution, live migration, etc, storing the .VHDs onm a SMB 3 share
\\fileserver\shareforVHDs
It is possible? How Cluster will understand the
\\fileserver\shareforVHDs as a cluster disk and offer HA on it?
Or i´ll have to "re-think" and forget about VHDs on SMb 3 Share and deploy using iSCSI?
Storage Spaces makes difference in this case?
All based on wind2012 R2 STD English version
You can do what you want to do just fine. Hyper-V / Windows Server 2012 R2 can use SMB 3.0 share instead of a block storage (iSCSI/FC/etc). See:
Deploy Hyper-V over SMB
http://technet.microsoft.com/en-us/library/jj134187.aspx
There would be no shared disk and no CSV just SMB 3.0 folder both hypervisor hosts would have access to. Much simplier to use. See:
Hyper-V recommends SMB or CSV ?
http://social.technet.microsoft.com/Forums/en-US/d6e06d59-bef3-42ba-82f1-5043713b5552/hyperv-recommends-smb-or-csv-
You'll have however a limited solution as your single physical server being a file server would be a single point of failure.
You can use Storage Spaces just fine but you cannot use Clustered Storage Spaces as in this case you'll have to take away your SAS spindles from your R720 box and mount them into SAS JBOD (make sure it's certified). So you get rid of an active components
(CPU, RAM) and keep more robust all-passive SAS JBOD as your physical shared storage. Better then a single Windows-running server but for a true fault tolerance you'll have to have 3 SAS JBODs. Not exactly cheap :) See:
Deploy Clustered Storage Spaces
http://technet.microsoft.com/en-us/library/jj822937.aspx
Storage Spaces,
JBODs, and Failover Clustering – A Recipe for Cost-Effective, Highly Available Storage
http://blogs.technet.com/b/storageserver/archive/2013/10/19/storage-spaces-jbods-and-failover-clustering-a-recipe-for-cost-effective-highly-available-storage.aspx
Using
Storage Spaces for Storage Subsystem Performance
http://msdn.microsoft.com/en-us/library/windows/hardware/dn567634.aspx#enclosure
Storage
Spaces FAQ
https://social.technet.microsoft.com/wiki/contents/articles/11382.storage-spaces-frequently-asked-questions-faq.aspx
Alternative way would be using Virtual SAN similar to VMware VSAN in this case you can get rid of a physical shared storage @ all and use cheap high capacity SATA spindles (and SATA SSDs!) instead of an expensive SAS.
Hope this helped :)
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.

Windows Server 2012 R2 Hyper V on a SBS 2011 Domain replication failure

I have a SBS 2011 Domain which I am adding two 2012 R2 Standard servers in order to facilitate virtualization and consolidate physical servers. I have the two 2012 R2 servers up and running and a test server running virtually on Hyper-V. I want
to test replication from one Hyper-V host to the other, however, I am unable to setup Kerberos delegation in the SBS 2011 AD domain. Specifically, the Service Type of Microsoft Virtual System Migration Service is not listed. CIFS is available,
however, there are no Service Types having to do with Hyper-V available.
I have upgraded the AD using adprep from the 2012 R2 installation disc, however, this has not added the service types.
Thank you in advance for the help!

Hi Justin,
Thank you for the information. I had originally reviewed the article you mentioned in your reply, however, this did not work for me. It accurately described the problem I am having, however, the solution did not work.
I did a little review of the syntax of the command SETSPN and found that the article referenced above has a "/" instead of a "\" in the command line. When I modified my syntax to reflect using the forward slash, the command seemed to processed
correctly, however, when I go back to the delegation steps, the service name is still not there. I did verify the service was registered properly by listing out all the SPN registrations.
Clarifying Question: Based on the command I ran to add this Service, I am wondering if I used the correct servers. Basically, I have the following:
Server 1 - SBS 2011 domain controller
Server 2 - 2012 R2 Hyper-V Server
Server 3 - 2012 R2 Hyper-V Server
I want to setup this Kerberos delegation for CIFS and Microsoft Virtual System Migration on Server 2 and 3 and am setting this up using ADUC on Server 1. I ran the SETSPN command on Server 1 for Server 1 - was this the correct thing to do or should
I have an SPN entry for Server 2 and/or 3?
Sorry for what is probably a very basic question.
Thank you again for your help.

Windows 2008 r2 guests blue screen on Windows 2012 R2 Hyper-V Cluster with e5 2670-v2 processors

Hello all,
We have a new hyper-v infrastructure deployed in two brand new Dell R720 Servers with 384GB of Memory and dual Intel e5 2670-v2 processors. This infrastructure is replacing an existing hyper-v 2008 R2 and all the guests are being migrated to this new cluster.
The issue we are seeing is our 2008 r2 guests blue screening ocasionally with 0x0000001a,0x0000004e or 0x00000050 bugchecks.
All this guests are configured with dynamic memory and with the integration components up to date. These same guests were running with no problems in the hyper-v 2008r2 cluster.
When searching i found this article from vmware that pretty much describes what we are facing:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2073791
Are you aware of the same problem with this kindd of hardware on windows 2012 r2 hyper-v?
Thanks!
Nuno Carvalho

Meanwhile i found this May 2014 update on the intel specification of the CPU we are using:
CA135 Incorrect Page Translation when EPT is enabled
Problem:
If EPT (Extended Page Tables) is enabled, then a complex sequence of internal processor events may result in unexpected page faults or use of incorrect page translations.
Implication:
Due to this erratum a guest may crash or experience unpredictable system behavior.
Workaround:
It is possible for the BIOS to contain a workaround for this erratum.
Status:
For the affected steppings, see the
Summary Tables of Changes.
This affects VMware as of the today update of the article i referenced in the first post, what about hyper-v?
http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-v2-spec-update.pdf
Nuno Carvalho

Network Questions on 2012 R2 Hyper-V Cluster

I am going through the setup and configuration of a clustered Windows Server 2012 R2 Hyper-V host.
I’ve followed as much documentation as I can find, and the Cluster Validation is passing with flying colors, but I have three questions about the networking setup.
Here’s an overview as well as a diagram of our configuration:
We are running two Server 2012 R2 nodes on a Dell VRTX Blade Chassis.
We have 4-dual port 10 GBe Intel NICS installed in the VRTX Chassis.
We have two Netgear 12-Port 10 GBe switches, both uplinked to our network backbone switch.
Here’s what I’ve done on each 2012 R2 node:
-Created a NIC team using two 10GBe ports from separate physical cards in the blade chassis.
-Created a Virtual Switch using this team called “Cluster Switch” with “ManagementOS” specified.
-Created 3 virtual Nics that connect to this “Cluster Switch”:
Mangement (10.1.10.x), Cluster (172.16.1.x), Live Migration (172.16.2.x)
-Set up VLAN ID 200 on the Cluster NIC using Powershell.
-Set Bandwidth Weight on each of the 3 NICS. Mangement has 5, Cluster has 40, Live Migration has 20.
-Set a Default Minimum Bandwidth for the switch at 35 (for the VM traffic.)
-Created two virtual switches for iSCSI both with
“-AllowManagementOS $false” specified.
-Each of these switches is using a 10GBe port from separate physical cards in the blade chassis.
-Created a virtual NIC for each of the virtual switches:
ISCSI1 (172.16.3.x) and ISCSI2 (172.16.4.x)
Here’s what I’ve done on the Netgear 10GB switches:
-Created a LAG using two ports on each switch to connect them together.
-Currently, I have no traffic going across the LAG as I’m not sure how I should configure it.
-Spread out the network connections over each Netgear switch so traffic from the virtual switch “Cluster Switch” on each node is connected to both Netgear 10 GB switches.
-Connected each virtual iSCSI switch from each node to its own port on each Netgear switch.
First Question: As I mentioned, the cluster validation wizard thinks everything is great.
But what about the traffic the Host and Guest VMs use to communicate with the rest of the corporate network?
That traffic is on the same subnet as the Management NIC.
Should the Management traffic be on that same corporate subnet, or should it be on its own subnet?
If Management is on its own subnet, then how do I manage the cluster from the corporate network?
I feel like I’m missing something simple here.
Second Question: Do I even need to implement VLANS in this configuration?
Since everything is on its own subnet, I don’t see the need.
Third Question: I’m confused how the LAG will work between the two 10 Gbe switches when both have separate uplinks to the backbone switch.
I see diagrams that show this setup, but I’m not sure how to achieve it without causing a loop.
Thanks!

"First Question: As I mentioned, the cluster validation wizard thinks everything is great.
But what about the traffic the Host and Guest VMs use to communicate with the rest of the corporate network?
That traffic is on the same subnet as the Management NIC.
Should the Management traffic be on that same corporate subnet, or should it be on its own subnet?
If Management is on its own subnet, then how do I manage the cluster from the corporate network?
I feel like I’m missing something simple here."
This is an operational question, not a technical question. You can have all VM and management traffic on the same network if you want. If you want to isolate the two, you can do that, too. Generally, recommended
practice is to create separate networks for host management and VM access, but it is not a strict requirement.
"Second Question: Do I even need to implement VLANS in this configuration?
Since everything is on its own subnet, I don’t see the need."
No, you don't need VLANs if separation by IP subnet is sufficient. VLANs provide a level of security against snooping that simple subnet isolation provides. Again, up to you as to how you want to configure things.
I've done it both ways, and it works both ways.
"Third Question: I’m confused how the LAG will work between the two 10 Gbe switches when both have separate uplinks to the backbone switch.
I see diagrams that show this setup, but I’m not sure how to achieve it without causing a loop."
This is pretty much outside the bounds of a clustering question. You might want to take network configuration questions to a networking forum. Or, you may want to talk with Netgear specialist. Different networking
vendors can accomplish this in different ways.
.:|:.:|:. tim

Migrate from server core 2008 r2 hyper-v with failover cluster volumes to server core 2012 r2 hyper-v with failover cluster volumes on new san hardware

We are getting ready to migrate from server core 2008 r2 hyper-v with failover cluster volumes on an iscsi san to server core 2012 r2 hyper-v with failover cluster volumes on a new iscsi san.
I've been searching for a "best practices" article for this but have been coming up short. The information I have found either pertains to migrating from 2008 r2 to 2012 r2 with failover cluster volumes on the same hardware, or migrating
to different hardware without failover cluster volumes.
If there is anyone out there that has completed a similar migration, it would be great to hear any feedback you may have on your experiences.
Currently, my approach is as follows:
1. Configure new hyper-v with failover cluster volumes on new SAN with new 2012 r2 hostnodes and 2012 r2 management server
2. Turn off the virtual machines on old 2008 r2 hyper-v hostnodes
3. Stop the VMMS service on the 2008 r2 hostnodes
4. copy the virtual machine files and folders over to the new failover cluster volumes
5. Import vm's into server 2012 r2 hyper-v.
Any feedback on the opertain I have in mind would be helpful.
Thank you,
Rob

Hi Rob,
Yes , I agree with that "file copy " can achieve migration.
Also you can try "copy cluster wizard " :
https://technet.microsoft.com/en-us/library/dn530779.aspx
Best Regards,
Elton Ji
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2012 R2 Hyper-V Cluster two node design with abundance 1Gbps NICs and FC storage

Hello All,
First post so please be gentle!
We are currently in the process of building/testing the upgrade of two node 2012 R2 Hyper-V cluster.
Two hosts built with Datacentre 2012 R2 which will host approx. 30 VM's.
Shared storage will be fault tolerant FC- connection.
10, (yes 10!) 1Gbps NICs are available, Intel i350.
trying to decide on teaming interfaces using native LBFO and the 2008 'style' of using un-converged networking, or teaming up most interfaces and using QoS. Can find many/numerous examples of using 10Gbps NICs and converged, however 10Gbps networking
isn't an option right now.
recommendations appreciated.
thanks

Hi Sir,
>>trying to decide on teaming interfaces using native LBFO and the 2008 'style' of using un-converged networking, or teaming up most interfaces and using QoS.
The following link detailed the teaming configuration and it's applicable scenario (server 2012):
http://www.aidanfinn.com/?p=14039
Also please refer to the document for 2012R2 LBFO :
http://www.microsoft.com/en-us/download/details.aspx?id=40319
In server 2012R2 , there is a new setting "Dynamic" for "load banacing mode " and it is recommended to use Dynamic for "Load banacing mode" :
If you can accept 1GB max bandwidth for each VM I would suggest you to use LBFO mode : Independent/dynamic/None(All adapter active) .
Best Regards,
Elton Ji
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected] .

2012 R2 Hyper V Cluster

Hi
we have windows Server 2012 r2 Hyper V failover Cluster.. we face slow network performance issue in widows 2012 R2
terminal Services .. VMQ is disable on Physical NIC of Hyper V Network.
Remaining Servers are working perfectly only issue face on terminal user login on terminal server node..
Any idea

Thats what we are asking you for?
you last post is a different question to your first response.
Hi all
Terminal node login slowly when applying group policy on it ..
Regards
My questions are still very relevant as posted in a previous reply.:
If you are waiting for Profile Service and folder redirection policies can you confirm the following?
How big is the users' NTUSER.DAT?
Which redirection policies have you applied and how much data are you shifting for the user? the first time a redirection policy runs for a user it can take an age (if you are moving their documents \ desktop etc...
How big is the link to your fileserver hosting the redirected data? How busy is the fileserver? How many files are in the users roaming profile? What is the total profile size for the user?

Server 2012 R2 Hyper-V Cluster, VM blue screens after migration between nodes.

I currently have a two node Server 2012 R2 Hyper-v Cluster (fully patched) with a Windows Server 2012 R2 Iscsi target.
The VMs run fine all day long, but when I try to do a live/quick migration the VM blue screens after about 20 minutes. The blue reports back about a “Critical_Structure_Corruption”.
I’m being to think it might be down to CPU, as one system has an E-2640v2 and the other one has an E5-2670v3. Should I be able to migrate between these two systems with these type of CPU?
Tim

Sorry Tim, is that all 50 blue screen if live migrated?
Are they all on the latest integration services? Does a cluster validation complete successfully? Are the hosts patched to the same level?
The fact that if you power them off then migrate them and they boot fine, does point to a processor incompatibility and the memory BIN file is not accepted on the new host.
Bit of a long shot but the only other thing I can think of off the top of my head if the compatibility option is checked, is checking the location of the BIN file when the VM is running to make sure its in the same place as the VHD\VHDX in the
CSV storage where the VM is located and not on the local host somewhere like C:\program data\.... that is stopping it being migrated to the new host when the VM is live migrated.
Kind Regards
Michael Coutanche
Blog:
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High Page Pool Memory Usage on a Windows 2012 R2 Hyper-V Cluster

Hi,
may someone has a similar Problem or can give me a helping Hand.
I'm having a 9Node Cluster ( Windows 2012 R2 , fully Patched from RTM Version on )
The Cluster is connected to a SAN which is an Equallogic ( Firmware 6.11). HitKit Driver 4.7.1
The System running clean and without any Event Logs until the Page Pool Usage of the Nodes turn over 15 GB of Paged pool Memory.
I monitore that via a Performance Counter ( \Memory\Pool Paged Bytes)
otherwise I have no indication by for example the Process View, the Calculated Sum on the Overview ( TaskManager / Memory ) but shows on the contraditory the 15GB an Memory Usage.
I downloaded the RAMMap Tool from Sysinternals but that doesnt show me any possible Information for the information , acutally the Information differs from RAMMap to the Performance Counter ( RAMMap = 251MB, Performance Counter = 15GB )
Just to make that point clear , there is No Information beside the Sum of Page File on the System Page and the PerfCounter that so much Page Pool Memory is used by any Process . Therefor it is hidden which process "needs" it.
I tried many thinks , like search for a Memory Hole in the Drivers , Hyper-V Stack , Equallogic and hoped for resolution with any new Patch which had a "Memory Leak" Information to them , but so far none has made a difference , maybe someone
has the same Problem.
My Cluster has routher large VMs on it compared to the Numa Seize ( VM 4-128GB, on DELL R720 ( 2x CPU (8C) 384GB RAM )
( The VMs have also a High IO Usage , as there RAM is used as a RAM Database ( zb. Mongo DB ) )
Regards
M

Hi Alex,
there is something wrong here and not an "normal" Memory Leak , as for that reason I would see the amount of Page Pool Memory assigned to a given Process.
If that would be the Case I could use RAMMap or even Vmmap to adresse the Paged Pool usage, but those Tools dont reflect the Usage like the PerfCounter does.
The Windows Driver Kit for a 2012 R2 System is WDK 8.1 which has a necessity of VS2013 ( Important: Before
installing WDK 8.1 Update, you need to install Visual Studio 2013. See the Visual Studio links on this page.) My Last Hope was to get poolmon.exe and identify the Source for the "Paged Pool" Usage .
We are having that Problem now since the Early Days of Windows 2012R2 and because the Usage is quite "hidden" we only found out , when we ran out of Memory without knowing why.
Worst Usage Rates where up to 150GB of Paged Pool !! given a RAM 385GB ( Dell R720) that is quite a Number.
Im wondering if noone else with a cluster ( seems that the Node numbers in a Cluster and the "RAM" Seize of the VM ( >32GB ) have a tremendous impact on that given Problem , with a 4 Node Cluster the Problem isnt so big )

Move 2012 R2 Hyper-V Cluster to New Subnet

I have a two-node Hyper-V cluster running on Windows Server 2012 R2. I am moving it to a remote hosting facility. So it is going to be going to a new subnet with different IP addresses than it has now. What do I need to do to make this a smooth transition?
Is there an article about it? I haven't found it yet.
Thanks,
Rob

It's a simple process.
The IPs that you have to change are:
- Management IPs of your nodes (2 IPs)
- Private IPs of your nodes (LM, CSV)
- The Cluster IP address
The cluster communicates using DNS names. So when you will change the IP addresses, the DNS record will be updated, and then the cluster will resume the communications.
What i suggest is:
Change the nodes private IP addresses (CSV, LM). Verify that the nodes communicates using these new IP addresses. Verify that the cluster have updated its configuration (You should see the new IP addresses on the cluster console, Networks)
Change the cluster IP adress, verify that the DNS has been updated, and that the cluster Name and IP are online (Cluster console)
Change the first node IP, verify that the DNS record has been updated
Change the second node IP, verify that the DNS record has been updated
Now, the configuration should work normally
Regards, Samir Farhat Infrastructure and Virtualization Consultant || Virtualization, Cloud, Azure ? Follow and Ask here https://buildwindows.wordpress.com

High Network Utilization on HeartBeat and LiveMigration networks - Windows 2012 R2 Hyper-V cluster

Hi all,
I have just setup a fresh Windows 2012 R2 Hyper-V cluster with 4 nodes.
Config:
Network:
2 x Networks for iSCSI
1 x VM network 1
1 x VM network 2
1 x Heartbeat
1 x LiveMigration
Disks:
5 GB = Quorum
2 x 2.99 TB (Deduplication enabled)
The problem I am getting is that HeartBeat and LiveMigration (both configured with Cluster Only traffic) have alot of traffic on them even though no LiveMigration (the only card configured for LiveMigration) is going on.
All network configuration is the same as it was in Windows 2008 R2 SP1 cluster which these machines where running before (not upgrade, fresh install and migration) and did not have this "problem".
Has anyone experienced this or have a solution to this?
Regards,
Thorir
thorir

Hi Thorir,
According to your discription , you can try to monitor and analyse the traffic of LM via network monitor for troubleshooting .
Here is the links for downloading and using network monitor :
http://www.microsoft.com/en-us/download/details.aspx?id=4865
http://technet.microsoft.com/en-us/library/cc723623.aspx
Any further information please feel free to let us know.
Hope this helps
Best Regards
Elton Ji
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Backup fails for a Hyper-V guest with VSS Writer failures using DPM 2012 R2 - Hyper-V guest has Oracle application installed,

I am trying to backup a VM which before it had Oracle installed backed up with no problems. It is a Windows 2008 R2 server which sites on an 8 node Hyper-V 2012 R2 cluster (with CSVs). I am using DPM 2012 R2 to run the backups which have been
successful for the last few weeks but then Oracle was installed and the backups have failed since then.
The job fails and a large number of VSS writers go into a 'Failed' state with the 'Last Error' showing as 'Timed out'. I then get 4 popups appear each referring to a 'temporary' drive which appears briefly in Disk Management with a RAW file system.
These pops say "You need to format the disk in drive X: before you can use it. Do you want to format it?" (where
X: is replaced by the drive letter assigned to each 'temporary' drive).
The System event log is populated with a large number of warnings with Event 51, Disk, stating "An error was detected on device \Device\Harddisk<number>\DR<number> during a paging operation". There are also a
few warnings for Ntfs (eventid 57) stating that "The system failed to flush data to the transaction log. Corruption may occur."
Prior to these warnings there are 5 other warnings for partmgr (eventid 58) stating "The disk signature of disk
<number x> is equal to the disk signatuire of disk <number y>" and 4 errors (eventid 1, VDS Basic Provider), "Unexpected failure. Error code: 490@01010004".
There is a script which is run to stop the Oracle application on the server and if this is run then the backups will complete successfully. We have been troubleshooting this by running a certain amount of the script and seeing which part affects the
backup and it seems that if the Weblogic (wls_reports) service is stopped then the backup will succeed but if it is running then the backup will fail and the above symptoms occur.
Another point which may help is that there is a pre-production server which resides on a Windows 2008 R2 Hyper-V standalone server, has the same scripts and installation of Oracle but backs up without any issues.
I have experienced VSS writer failures before with VM backups but I have not seen this before. It is not intermittent and I can find no work around to alleviate the problem of having no backup (except stopping this service or shutting the server down,
but as it is a production server this is not practical).
If anyone has experienced this before or have any suggestions / advice it would be much appreciated.
Thanks
Chris

Hi Chris
I have exactly the same issue.
2008 R2 Server running Oracle
6 node 2012 R2 Hyper-V Cluster with CSV
Exact same errors and popup "format disk" message.
DPM2012 R2
I also have some other VM's on the same cluster which do back up through DPM
The only difference I can see is the server which has the issue has a legacy network adapter.
Production server so cannot make any changes until later but will add new adapter and report back.
Interesting about the Weblogic service, may test this also.
Cheers
Kev.

2012 R2 Hyper-V Cluster Replication to Single Non-Cluster Host?

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