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How to deploy an application packaged as a Hyper-V Export (.ZIP) file

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I need to write a procedure for deploying an app to a Hyper-V host from a .ZIP file containing:

    • A .vhd file of the app running on its CentOS operating system
    • A configuration (.xml) file containing information about its virtual machine environment
    • The most recent version of Microsoft Linux Integration Services

The procedure is for someone who has a Hyper-V data center and needs to deploy virtual instances of the application. In preparation, they'll have downloaded the .ZIP file to their PC, which presumably has Hyper-V Management Console.

I don't have access to such an environment, and figured it would be a task I could find described somewhere on Technet. But much searching has failed to turn up anything that helps much. Can someone point me to the relevant information, please? Or provide a brief outline of the steps? TIA!



Hyper-V incremental backups

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Hello.

In a Hyper-V 2012 R2 cluster, with multiple nodes, I witness the following behaviour. When a VM migrates to a different node, all VMs on that node are backed up full. Even though the schedule is to be incremental. If importan; we use transportable vss backup, presenting the snapshots to a backup server.

What is recommended size of System drive to keep operating system files , paging files and Memory Dump of hyper-v host.

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Hi ,

I want to setup hyper-v host with 128 GB RAM  , Windows 2012 R2

What is recommended size of System drive  to keep operating system files  , paging files  and Memory Dump?

I tested to using 150 GB  , but when the server is crashed, there is no free space to keep memory dump file.


Ramy

Slow migration rates for shared-nothing live migration over teaming NICs

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I'm trying to increase the migration/data transfer rates for shared-nothing live migrations (i.e., especially the storage migration part of the live migration) between two Hyper-V hosts. Both of these hosts have a dedicated teaming interface (switch-independent, dynamic) with two 1GBit/s NICs which is used for only for management and transfers. Both of the NICs for both hosts have RSS enabled (and configured), and the teaming interface also shows RSS enabled, as does the corresponding output from Get-SmbMultichannelConnection).

I'm currently unable to see data transfers of the physical volume of more than around 600-700 MBit/s, even though the team is able to saturate both interfaces with data rates going close to the 2GBit/s boundary when transferring simple files over SMB. The storage migration seems to use multichannel SMB, as I am able to see several connections all transferring data on the remote end.

As I'm not seeing any form of resource saturation (neither the NIC/team is full, nor is a CPU, nor is the storage adapter on either end), I'm slightly stumped that live migration seems to have a built-in limit to 700 MBit/s, even over a (pretty much) dedicated interface which can handle more traffic when transferring simple files. Is this a known limitation wrt. teaming and shared-nothing live migrations?

Thanks for any insights and for any hints where to look further!

How to specify only possible owner of the VM in Hyper-v cluster (Windows 2012R2)

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Good day,

Wewant to preventthe migration of virtual machinesbetween the cluster nodes in indows 2012R2 Hyper-V cluster.

How to specify only possible owner of the VM in Hyper-v cluster (Windows 2012R2) ?


SQL clustering

Is possible to install Hyper-V on windows 7 Enterprise ?

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Is possible to install Hyper-V on windows 7 Enterprise ? if yes 64bit or 32bit? 

WS2012R2 - Storage Device version mismatch 6.0 vs. 4.2 - Linux Guest

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I have a WS2012R2 Hyper-V host that has a vendor provided Linux based vhd. When that guest boots I get:
"A storage device in 'Server' loaded but has a different version from the server. Server version 6.0 Client version 4.2 (Virtual machine ID). The device will work, but this is an unsupported configuration. This means that technical support will not be provided until this problem is resolved. To fix this problem, upgrade the integration services. To upgrade, connect to the virtual machine and select Insert Integration Services Setup Disk from the Action menu."

I am not sure if there are newer LIS since the newest ones I can find are 3.5 from Jan 2014 and that doesn't match the reported version number. I want to tell the vendor what they need to do to upgrade but I am not sure.

Also if a VMs integration services are upgraded to latest 2012R2 level will VM still function on 2008R2? The vendor wants a single image and won't upgrade if it breaks older OS I am sure.

Thanks.


Brian Hoyt

Server 2012R2 looses vEthernet switches and cannot stop a starting Vm.

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We have three 2012R2 Host Servers in a Failover Cluster, there are 14 Hyper-V VM’s in the cluster.

Yesterday Host3 went down because 3 network adapters disappeared. That left 2 servers (Host1 and Host2) active (that’s sufficient to run all the virtual servers). But for some reason all the virtual servers automatically moved to only one host server. One server cannot support all the virtual servers. However this server tried to run all the virtual servers which made none of the servers active. It showed all the vm servers “starting” but never “running”. By rebooting the host server that held the VM’s, all the VM’s automatically moved to the other good host server and the same thing happened.

So here are the 2 problems that happened:

  1. On Host3 three network adapters disappeared. And could not be recovered without re-installing the operating system. These are needed for the VM’s to run. The adapters are created when virtual switches are created in Hyper-V. The 3 are vEthernet (LAN Virtual Switch), vEhternet (iSCSI2 Virtual Network), and vEthernet (iSCSI 2 Virtual Network)

    2. There does not seem to be any way of turning off a VM when it is in the “Starting” state.


Hyper-V host crash and live migration - what happens?

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Hello there,

it would be great if you could help me understand how live migrationworks on a sudden host crash of a cluster node.

I know that the cluster functionality mounts the vhd file on another host and runs the VM.

But what happens to the VM itself? Does it crash too and is simply restarted on another host?

To my knowledge the RAM of the VM is run in the RAM of the host, wo I would assume that is all lost on a host crash?

Thanks for any help understanding this,

Best regards, Marcus

How to configure Hyper V VM replication between 2 different sites (located geographically at 2 different cities)

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Hi all,

I would like to know how to replicate VM's between 2 different sites which are entirely located at different parts of the cities and also
they are on different domains. Both Servers are running HyperV 2012 R2 Standard. As initial phase I have copied the VM's files  (.vhd and other config files) from Site A to Site B.

In this case, can any one please guide me on how to achieve this replication between 2 different sites.

A quick response is much appreciated...

Thanks in advance. 

Hyper-V & SOFS Cluster Heartbeat - Separate Subnets?

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As a rule of thumb, is it best to separate cluster network traffic for Hyper-V clusters and SOFS clusters fromeach other, or can I have the same VLAN carrying traffic from both clusters?

Many thanks.


The Famously Annoying "Slow" Hyper-V Guest (Running RDS)

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Hi All,

Over the past several weeks, have had a handful of users complaining slowness at random times when connected across a WAN to an 2008 R2 RDS Server running on Hyper-V.  Users in the same location as Hyper-V's server don't see any slowness (though also don't use RDS, just the VM that does DC/DNS/File Sharing).

Let me know what else maybe be useful/needed info of course, but some quick specs:

Host Server (2012 R2 Standard):

  • HP ML350p Gen8;
  • (2) Xeon ES-2620 @ 2Ghz;
  • 56GB RAM;
  • Smart Array P420i controller w/:
    (6) HP 500GB 7.2K 6G SAS drives in RAID-10 Config;
    2 Volumes: 1 “System” of 100GB (69% free); 1 “Data” of 1.27TB (59% free);

VMs:

VM1– [DC, DNS, File Shares, etc;]

  •                    OS = Windows Server 2008 R2 Standard
  •                    vCPU = 1
  •                    RAM (dynamic) = 16GB (startup); 4GB (min); 1TB (max); 4GB (assigned);

VM2– [RDS]

  •                    OS = Windows Server 2008 R2 Standard
  •                    vCPU = 2
  •                    RAM (dynamic) = 32GB (startup); 4GB (min); 1TB (max); 4GB (assigned);
  •                    Apps = MS Office 2013 (primarily Word, Outlook, Excel); Avionte (run via Citrix web app, managed by 3<sup>rd</sup> party); Chrome; Firefox; Skype; Adobe Reader XI;
  • About 11 Users

Network/Internet:

  •                    Host server location = 5meg up/down
  •                    RDS user location = Unsure as it is a location managed by a shared building IT department who are not the most communicative, and each company has their own office(s), but best guess is min. 20meg up/down if not faster.

Not long after standing up this server and getting everyone connected, the RDS users, all in another city, complained of slowness.  Ultimately, kicking up the internet speed to 5meg up/down in the host server’s location quelled that for quite a long time.  Only recently, in the past several weeks have people again started complaining of slowness.

To further muddy the waters, some users report no/minor slowness while others report “moving at snail’s pace”, or “so-and-so can barely use their remote desktop” – all while connected at the same time. 

I’ve checked internet speed at the reported times of slowness and the host city will be at 4.5meg up/down, while the RDS user’s location will show 22meg down/45meg up.  So that doesn’t seem to be the issue.

I’m in a different city than either location, and when remoting in to either the Hyper-V host or the RDS server via LogMeIn I see no slowness whatsoever – snappy and responsive all the way around.  If I connect via RDP as Admin and use Word or Outlook, it can sometimes be a tad slow, but nothing as horrible as is described.  However, I don't have the same day-to-day tasks to test out that the users do.  All the same, beyond some general "office documents" type stuff, fairly sure they are not doing anything power user/resource intensive.  What I've seen in Task Manager/Resource Monitor, appears to support that - making it all the more confusing.

I’m the only admin, and can confirm no changes beyond HP and Windows updates, and general troubleshooting (e.g. disabling offload on the NICs, applying hotfix in regards to Inactive TS Port issue - http://blogs.technet.com/b/askperf/archive/2012/03/06/performance-issues-due-to-inactive-terminal-server-ports.aspx, etc;)

All users connecting via RDS are running Windows 7 x64 on fairly recent machines.  I've asked them to try to keep a close eye on when things slow down/speed up - for example, when someone logs out of the remote session, leaves for the day, etc; but they're not always the most observant.

Beyond that, please let me know what else I should be looking for/at, or can further detail for you - and/or if you notice anything above that seems misconfigged somehow.

Thanks a million, driving us all mad!




Veeam Backup solution

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Hi,

We already have a backup solution in place which is IBM Tivoli storage manager. We noticed that Tivoli storage manager is not suitable for backing up virtual environment. Since we are using this software for AIX, Linx, IBM I etc systems and databases.

Is it possible to integrate Veeam Software with TSM and using the existing tape library?

Regards

Sanjay

Hyper-V - 2 node cluster goes down if one server shutsdown

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Hi all,

I built a 2 node cluster with tiered storage and then I started doing some tests:

* Drain one node and all the VMs moved to the other node, perfect

* shutdown the drained node.

The entire cluster crashed!!! The remaining node is trying to re-connect to the iSCSI SAN without success.

* I booted the drained node. And it would not re-connect to the iSCSI SAN either. I had to force the reconnect in the iscsi control panel to make it re connect.

So why would shutting down one node kill the cluster ? Sure it was the node that had the tiered pool online, but even then, isn't failover cluster supposed to put that one back and working on the other node ?

Why did the active node lose the iSCSI connection too ? It had VMs running on it prior to the shutdown of the other node. My DC that was running on that other node is also now un available, can't ping it or anything.

So what did I miss in the configuration of the cluster ? I followed the msdn 2 node hyper-v cluster doc.

I am really worried atm since I had over the past 3 months a ton of issues with hyper-v going from using tiered storage, shutting down nodes, MAC address on the VMs and the hosts,... I thought that after hyper-v 2008, Microsoft had really made some progress with Hyper-V but I truly regret not going with VMWare again this time around.

That cluster was supposed to go into homologation phase tomorrow at the datacenter but now I am unsure if I ll ever be able to trust it to work.

The SAN is an MD3200i which is reported as Hyper-V ready.

Any hint on where I have gone wrong would be appreciated.

Regards,

Edit: even from the host with powershell I was not able to shutdown the DC and reboot it clean. Said the integration services were not reachable... it is a 2012 R2 servers...

Edit2: One of my VM is gone ! Can't even find the file on the disks either locally on the hosts or on the SAN. WTF!!!

Merge process when shutting down a VM (Can it be stopped with no issues?)

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I'm having a mail server downtime to complete critical updates and also add a 2nd network adapter.

I'm aware at this point that this server is currently running on a 1.6TB avhd file (and I see the parent last modified date back from the last time we had shutdown).

My question is....when I shutdown the VM and the merge process begins, will I be able to add the adapter I need?

If so, will the merge process let me start up the VM at that point when I am ready.

I wont have a long enough downtime for the file to merge into the parent. I believe that would take upwards for 20 hours.

My only goal right now is to add that hardware and reboot a couple of times for updates.

I have only a 3 hour window. Any advice here?


network issue

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Hello,

I have setup two HyperV server. each have two NIC. One NIC is connected directly from one server to other server No router in between that. And another NIC is connected to External network.

Now I have created two  External Vswitch one is with External network and other one is internal network.

now problem is if i assign two vswitch two one Linux vms i can not ping public ip address which is assign to vm.

Please help

Partha


Microsoft VHD HBA - Driver missing

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Hi Forum,

I'm struckling with a Hyper-V server.

For some reason i setup new VHD's because of a missing driver (i presume).

I've tried removing the role and adding it again, but the device "Microsoft VHD HBA" keeps showing up in device manager with a driver missing.

I've searched low and high online, but no luck.

Please help me as i'm stuck and can't continue with the rest of the enrollment.

//David 

How to verify if backups are set up and running on Hyper-V with Ubuntu 12.04 on vm ?

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I have Windows Server 2008 R2 with Hyper-V installed and Ubuntu 12.04 running on a VM.

I would like to be able to verify if Windows Server Backups are in fact backing up the Ubuntu VM.

From within Hyper-V Manager no snapshots appear for the VM.

I have done a lsmod on Ubuntu to verify if LIS is installed , this is the output:

-----------------------------------------------------------------------------

Module                  Size  Used by
vesafb                 13844  1
joydev                 17693  0
hid_hyperv             13164  0
hid                    99559  1 hid_hyperv
mac_hid                13253  0
psmouse                87603  0
serio_raw              13211  0
i2c_piix4              13301  0
lp                     17799  0
parport                46562  1 lp
hv_netvsc              22939  0
hv_utils               13540  0
hv_storvsc             17896  2
hv_vmbus               34543  4 hid_hyperv,hv_netvsc,hv_utils,hv_storvsc
floppy                 70365  0

---------------------------------------------------------------------------------------------------

A ps -ef outputs this:

---------------------------------------------------------------------------------------------------

root       217     2  0  2013 ?        00:00:00 [hv_vmbus_con]
root       218     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       219     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       220     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       221     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       222     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       223     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       224     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       225     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       226     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
root       227     2  0  2013 ?        00:00:00 [hv_vmbus_ctl]
 (not the entire output, just what I think is relevant)

-------------------------------------------------------------------------------------------

When checking the registry on Server 2008 I cannot find the key

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WindowsServerBackup\Application Support\{66841CD4-6DED-4F4B-8F17-FD23F8DDC3DE}

as described how to setup in this link: http://support.microsoft.com/kb/958662

From what I can gather VSS will be able to run without the need to shutdown the Ubuntu VM but the backups are not running when Windows Server Backups run?

How can I verify IF any backups of the VM have run successfully at all?

I am new to Hyper-V - but from what I can see , it seems that no VM backups are running . The normal Windows Server backups are running nightly. I would like them to run together without having to restart/ take offline/reboot the VM.

This is a production server and I need to avoid rebooting as much as possible-

Windows Server 2012 R2 - Hyper-V-Cluster: Access denied while taking snapshot/checkpoint

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Hello,

we've migrated our VMs from an Win 2008 R2-Cluster to a newly installed 2012 R2-Cluster containing 3 nodes.

Storage is a HP lefthand 4730 connected via iSCSI, MPIO is not used.

After installing roles and configuring luster with quorum and extra Network for cluster heartbeat

Virtual machines have been created via cluster Manager, VHDs have been copied to respective cluster shared volume.

Everything works fine, VMs are running, live migration is working fast, no errors in cluster events nor windows events.

BUT: it's not possible to make checkpoints of machines to its "home" csv, when trying this, I get "error, checkpoint cannot be created... Access denied error (0x80070005) (ID of virtual Computer: xxxx)

After trying this, two events in Windows:
16370 (with alert from above) and 18012: error in checkpointprocess...

Only if directory for checkpoint is set to a local path on hyper-v-server checkpoints can be created - which is not very useful...

Checked rights on csv and made a test csv with everyone full access and directed path for checkpoint to that - no change, same error.

Also virtual machine group has right to create symbolic links, even there I tried with everyone with this right - no change, same error.

No virusscanner is active, firewall is deactivated. File Server Feature is installed on all nodes, smb protocols 1+2 are enabled.

So any idea, which right is wrong? :-)

Thanks and regards!

McButtonn




VM with 1GB RAM in Hyper-V server gets restarted while Updating glibc rpm

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I created a linux RHEL 6.1 based VM in Hyper-V server windows 2012R2.

VM settings are given below:-

  • Start up RAM=1GB.
  • Max RAM=2GB(dynamic expandable).
  • RAM type=dynamic

We are trying to upgrade old  version of glibc rpm(glibc.i686 02.12-1.25.el6)  with new version(glibc-2.12-1.149.el6_6.5.i686) on this VM using yum command. We also tried using rpm -Uvh command but result is same. We did the same upgrade in ESX server VM there it is getting updated successfully.

While installing new glibc, VM is getting restarted unexpectedly. 

Note: This behavior is not seen on ESX hosted VM.

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