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Hyper-V cluster with a JBOD HP 600 Modular Disk System. How to do it?

September 7, 2016, 11:18 am
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Hello.

I have two HP Proliant servers with a P812 controller in each.
I have a storage system HP 600 Modular Disk System with 35 SAS drives.

I connected each server to the storage system with SAS cables.

I can create different RAID 0 disks. When I try to add these disks to the cluster I can not see them. In Disk Manager of Windows Server 2012, I see them as disks with Raid BUS. I have understood that they must be SAS disks to add to the cluster.

What am I doing wrong?
Do I need a SAS switch?

Thank you.

MCSA: Windows Server 2008

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converting dynamic disk to Fixed

September 7, 2016, 10:13 pm
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hello everyone

I'm trying to convert many dynamic vhd files to fixed I also need to set a specific size ut the problem is that wen I enter the -BlockSizeBytes parameter I didn't find any documentation how to enter the size I tried many different cominations but they all give me errors like this error: 

Cannot bind parameter 'BlockSizeBytes'. Cannot convert value "10000000000" to type "System.UInt32".

I know that I'm not expert in powershell and I don't know what does "System.UInt32" means can anyone give example how can I set a specific size

thanks

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Virtualize physical workstations with Windows 10

September 8, 2016, 5:53 am
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I'd like to put some of my machines into Hyper-V. What is the best practices for virtualization of Windows 10 x64 Enterprise with UEFI and GPT partition?
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Problem with unidentified network on virtual machine with windows server 2012 R2

September 8, 2016, 11:55 am
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I have been searching several blogs for the past 3 days and have found no solution to a Hyper-V issue. This started happening 2 days ago on one server 2012 r2 that hosts 5 virtual servers all are also 2012 r2. Where all the VM's were not connecting to the domain and had registered a "unidentified network". I tried everything I could think of disabling/enabling both the VM virtual NIC and the physical NIC on the host. Instantly went back to "unidentified network". Finally, I just created a new virtual switch and activated another physical NIC and attached the vEthernet switch to the new nic. Assigned to all VM's and they all instantly connected back to my Domain. I thought that it was just glitch when this server re-booted. However, when I came into work today 3 more physical servers all 2012 r2, each hosting at least 3 VM's ranging from Server 2008 Standard to Server 2012 r2 were experiencing the same issue. I did the same solution as stated before and all VM's connected back to the Domain. However, one of my non critical servers I decided to see if this would be a long term resolution so I rebooted the HOST. And instantly all VM's were back to "unidentified network" . And once again the only thing that resolved this is to create a new virtual switch and assign to all VM's.

Please any suggestions would be helpful.

I have already tried all the below steps:

Method 1

Configure the firewall devices not to block communications on UDP/TCP port 389.  For more information about how to do this, click the following article number to view the article in the Microsoft Knowledge Base: Service overview and network port requirements for the Windows Server system

Method 2

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
  1. Configure one computer in the child domain to connect to the PDC from the root domain.
  2. Restart the computer. The computer should now be able to identify the network. Also, the profile on the firewall will be set to the domain profile.
  3. Export the following registry subkey as a file to a shared location in the domain:
    HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\NetworkList\Nla\Cache\IntranetForests
  4. Import the registry subkey that you exported in step 3 to the other computers that cannot connect to the PDC from the domain forest.
  5. Restart the computer. The computer should now be able to identify the network and the profile on the firewall will be set to the domain profile.

Method 3

If it is sufficient to identify the network profile based on the child domain name, then mitigating the time taken by NLA during its aggressive retries might be the right approach. 

To deploy a registry setting that changes the retry count used by NLA, follow these steps:
  1. Create a new registry key that matches the forest root domain under the path:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Nla\Cache\Intranet\
  2. In the newly created registry key for the name of the forest root domain, add the  two registry values below:
    • Failures   REG_DWORD with a value of 1
    • Successes REG_DWORD with a value of 0
    This will cause NLA to go to its lowest retry count and should result in identification lasting for just a couple of minutes.


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[resolved] Hyper-V 2012 R2 VLAN not working as expected.

September 6, 2016, 10:33 am
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Hi Guy,

I'm currently installing an Hyper-V 2012 R2 Cluster with 2 Lenovo x3550M and V3700 storwize.

I'm now on the networking parts.

both server have 4*1Gb NIC Broadcom NetXtrem | 

Two Switch TP-LINK TL-SG1016DE VLAN 802.1q+LAG supported...  

1) I've create a Nic Teaming on the 4*1 Gb Nic Adapter (switch independant) on both server

2) I've create a VM-Switch on this Teaming 

3) I've Create 3 vEthernets :

LiveMigration Vlan 10

Cluster (CSV) Vlan 11

Admin (mgmt) untagged

on both server.

The  physical switch configuration and connection.

on both switch i've first configured the lag (TP-Link called that Trunk, I don't know what exactly type of LAG it is but not LACP) on port 1, 3, 5, 7 and connect this port to the 4 ports of both server. HyperV shows the teaming up. I've also configure this lag with vlanid 1 (PVID), 10,11.

For my test i've also configure the port 15 and 16 of the switch in a lag  in order to configure a "high speed and redundancy" link for the LiveMigration and CSV with pvid1, vlan 10 and vlan11

I've configure ip addresses on vEthernets. try a ping and nothing. no response 

I've read that  Post, but since i'm not a Network Guru i'don't know if it is a misunterstood of how vlan works, an hardware or a software configuration problem

Can you give me an help please ?

 

Thanks 

 



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Event ID 41, Task 63

September 10, 2016, 4:12 am
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Hi all, 

My hyper-v host win2012 suddently rebooted 

checked events shows 

Event ID 41, Task 63

Windows large dump was enabled so how to analyze this 8GB dump - Ive selected minidump now.

The hosts are on HP Enclosure- I've also asked HP to check from Enclosure end if any power drops / related errors. 

anyone can put light on this 

Events show only unexpected shutdown so can't pinpoint any particular application / service causing the unexpected reboot.

tfernandes

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HyperV Replica Issues

September 10, 2016, 8:50 am
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Hi all,

I've got a Win 2012 R2 Core HyperV cluster with 7 nodes in HO and another similar cluster in the DR. These are running on Nutanix nodes, which basically means SMB3 shares are exposed as storage for the clusters so the VMs are hosted on the shares. I've setup HyperV replicas for many VMs between the 2 clusters.

On to the weird problem. The VM Replication Health shows healthy. As soon as I shutdown the VM, and try to perform a planned failover, it fails and requires a resync. After a resync, it starts working again. However, if I try to run the VM again for sometime and shutdown and try to failover, it again asks for a resync. It always requires a resync before failover for some reason.

As a test, I shutdown the VM and waited for a replication cycle. Lo and behold, as soon as the VM is off, the next replication cycle will fail and the VM will require a resync.

The failure occurs at this step of the Planned failover "Send data that has not been replicated to Replica Server."

How does turning off a VM cause a replica to stop? Is there any bug? 


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challenges on creating Hyper-V Cluster on existing VM working with virtual fiber HBA

September 11, 2016, 8:50 am
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Hi Team,

We have two Hyper-V server running as standalone. There are 5 VM already running on each of the Hyper-V server and all the 5 VM are in cluster with another VM running on second Hyper-V. That VM level cluster has been setup using shared LUN through virtual fiber channel option.

we have built new VM on each of the Hyper-V and there is a requirement to allocate shared vhdx to that newly installed VM on both the VM. Since base hyper-v are not in cluster and existing VM level cluster has been done through virtual HBA, I want to know what would be technical challenged to create the Hyper-V cluster just for one set of VM. Is it recommended to do it in this way ?

Another question - Can we migrate the existing VM in to Hyper-V cluster CSV considering the existing VM cluster has been setup through virtual HBA option?

Regards,

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Different versions of Hyper v

September 12, 2016, 4:33 am
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Hello Guys,

Can someone pls tell me what are the different versions of hyper V available? I guess Windows Server 2012 R2 is having Hyper V 3.0, what else is there? And what are the benefits of each of the versions.

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No "insert integration services disk" menu item available - why?

September 12, 2016, 9:57 am
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I'm running Hyper-V on Windows 10/64 and have just installed a fresh Windows Server 2003 SP1 installation.

Now I'd like to install Hyper-V Integration Components to the guest OS, but the menu item (Action > insert integration services disk) is not available:

How can I install Hyper-V Integration Components to this guest OS?

Your help is appreciated.

Still people out there alive using the keyboard?

Working with SQL Server/Office and their poor keyboard support they seem extinct...

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Hyper -V export and import

September 12, 2016, 7:26 pm
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Hi, 

I have exported one of my virtual machine ( mail server) from server A

Now i am trying to import it to a new hyper-v server (sever B)

i am presented with 3 options, register, restore and copy. Which should i choose?

The intention is to shut down the old mail server from server A.
But at the moment, we would like both of them to be up first.

Thank you

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Simple (virtual) NiC question I hope...

September 13, 2016, 3:37 am
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Configuring what's surely a common setup...

* server 2012 R2 (host) and DC (root), 192.168.1.2

* hyper-v, server 2012 R2 for SQL Server (probably with AD (could DC failover that way), 192.168.1.3

Should I virtualise the network environment?  The PC has two adapters, just using one for now, we'll look at NiC teaming perhaps later (or for the 2nd virtual server???)

I'm no expert on Hyper-V!

Normally, for separate servers, I could use DHCP on the primary DC and reserve IP's for other servers (as well as other devices (printers etc)).  That's the way I'd like to configure this virtual setup, use reservations in the DHCP server.

If anyone can help on how best to setup the NiC in the Hyper-V instance, it'd be appreciated.  I assume I can create a virtual NiC and then cancel that if it's not best.

Is there a good guide around for this (surely very common) setup scencario?

Cheers,   Duncan.

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Internet connection drops down minutes after starting Virtaul Desktop

September 14, 2016, 6:15 am
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Hi,

I have tried so many different topics and nothing seems to work.
I have a Windows Server 2012 running Hyper-V with currently one desktop only that is essential because we have our shipping program on it (E-Commerce).

When I start the desktop I have a great internet speed with 90/100Mbits but after just a few minutes it drops down to 10/1Mbits and we this causes problem because we can't access our shipping program and print out package labels.

When I first started everything worked fine, I had internet problems at first but solved it by disabling the VMQ and everything was running smooth in 3 months. Until this week...

I tried to adjust the "Jumbo Mtu", Disable "Large Send Offload", Disable "TCP Checksum Offload" and Enabling VMQ and adding a regkey to adjust it.
Nothing seem to work.

I really dont understand why I have great internet response the first 5-10 minutes after I restart the Virtual Desktop either.

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Backup Fails

September 14, 2016, 6:18 am
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Hello,

We have two 2 node clusters. One in our main office and one in our CoLo office. We are using ArcServe UDP to back up our virtual machines. All the machines in the CoLo office backup fine. However the VM's in our main office will not backup. Whenever we backup the VMs here the VSS writers will fail. We get a timed out error. We have tried many different things and hoping someone here can point us in the right direction.

Our HP 2040 SAN is split across both sites but it is backing in the main office.


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Hyper-V and 2012 R2 Failover cluster

September 14, 2016, 6:21 am
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Hello All

I need to pick you're brains.  I've recently built a two host 2012 r2 failover cluster.  I get green ticks across the board when running the validation checks.  The plan is to move away from our current fail over cluster and into the newly created one.

Please bear with me, I want to make sure I get all of the details down to help you understand what's going on.

Old fail over cluster 2012.

3x server 2012 r2 remote desktop servers static IP addresses assigned.  Only virtual switch applied against these VM's is the production LAN.

Hyper-v virtual switches setup for production LAN, iSCSI and DMZ.

New fail over cluster 2012 r2

Hyper-v virtual switches setup for production LAN, iSCSI and DMZ.

My process to move the VM's from old to new is as follows:

OLD fail over cluster manager:

Shut down all three VM's.

Offline the disk within fail over cluster manager.

Remove the disk from cluster shared storage.

Remove the disk completely from fail over cluster manager.

New fail over cluster manager:

Connect iSCSI to the san disk, and the necessary steps within disk management to make the disk available.

Attach the disk in fail over cluster.

Bring into cluster shared storage.

Bring the disk online.

Open hyper-v on the host.

Create the VM and point it at the disk with the same name.

Modify the settings for the hardware.

Connect and power on the VM.

This is where things start to happen:

Domain server not connecting to the domain.  I have to log in as local admin.

Network connection is unidentified and set to DHCP.

Set to original static IP it had on old fail over cluster.

Server 1 connects fine and sees the domain network

Server 2 connects fine and sees the domain network.

Server 3 even with its original static IP it doesn't connect to the domain network and keeps displaying unidentified network.

If I move the 3rd VM to the 2nd new host it works.  The domain network connects as normal.  If I fail over the other two VM's which worked on host 1 to host 2 I loose network on vm 3.  If I fail vm's 1 and 2 back to host 1 all 3 vm's have domain network connections again.

Can someone please help me with this as its driving me made.  I cannot see any errors within failover cluster.  I've tried this with both DHCP and static IPs assigned and I get the same symptoms on both attempts.

Have I missed some setting which only allows a set number of VM's on a virtual switch within hyper-v?

Cheers
Dave 

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Hyper-V VM's are performing too slow on HP host server OS - Server 2012 R2.

September 14, 2016, 9:43 am
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Hello Team,

Hyper-V VM's are performing too slow which are hosted on Brand new HP Server (HPE ProLiant ML350 Gen9 Server) with OS Windows server 2012 R2 Data Center edition.

Below are the Host server and Hyper-V VM configuration details:-
Host Server:- 
HP Server - Windows Server 2012 R2 Data Center Edi - 64 GB RAM, 2.8 TB HDD.
Hyper-V VM:- Two VM's created. 
First VM - Server 2012 Std Edi. with 4GB RAM and 127 GB HDD. 
Second VM - Windows 10 Enterprise N - 4 GB RAM and 127 GB HDD.

We tried trouble shooting like installing latest windows updates and Ethernet driver updates but no luck. Please advice if there any other way to increase VM's performance.

Regards,

Vishal Suryan

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HyperV Replica Fails when VM is shut down

September 10, 2016, 8:50 am
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Hi all,

I've got a Win 2012 R2 Core HyperV cluster with 7 nodes in HO and another similar cluster in the DR. These are running on Nutanix nodes, which basically means SMB3 shares are exposed as storage for the clusters so the VMs are hosted on the shares. I've setup HyperV replicas for many VMs between the 2 clusters.

On to the weird problem. The VM Replication Health shows healthy. As soon as I shutdown the VM, and try to perform a planned failover, it fails and requires a resync. After a resync, it starts working again. However, if I try to run the VM again for sometime and shutdown and try to failover, it again asks for a resync. It always requires a resync before failover for some reason.

As a test, I shutdown the VM and waited for a replication cycle. Lo and behold, as soon as the VM is off, the next replication cycle will fail and the VM will require a resync. I see this Event Log error on the source host machine:

Replication for virtual machine failed because a virtual disk is changed due to compaction, expansion or offline updates.

I haven't made any disk changes to the VM.

If I do a Planned Failover, the failure occurs at this step "Send data that has not been replicated to Replica Server." I think the problem has something to do with the VM shutting down, as mentioned above. How does turning off a VM cause a replica to stop? Is there any bug? 





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The process has not been granted access rights to the parent virtual hard disk

September 15, 2016, 6:30 am
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While restoring VMs I receive the following error in event logs:

The chain of virtual hard disks is inaccessible. The process has not been granted access rights to the parent virtual hard disk for the differencing disk.

I am the admin. The machines are messed up. Of course they had checkpoints and of course it was a bad idea (from today's perspective). Now when restoring them I feel like catching all Pokemons from the MSDN error codes list. Please advise how to proceed with this particular one.

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Windows server 2012 R2 Datacenter licensing

September 15, 2016, 7:33 am
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Hi,

We have Windows server 2012R2 Data center edition installed on our hyper-v host server. I was under the impression I could install VM using the same disc onto the host server but it's quering the serial number? I thought the license allowed unlimited vm on the host up to basically what the server can host?

Is this correct or am I thinking wrong about the licensing?

If someone can explain be appreciated.

Thanks

Brenden

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Manage Server 2012 R2 Hyper-V from Win 10 LTSB 2016 client = "...could not access an expected WMI class..."

September 16, 2016, 1:11 am
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Trying to access Hyper-V running on Server 2012 R2 from Windows 10 LTSB 2016 and I only get an error:

The Hyper-V Management Tools could not access an expected WMI class on computer....

Same server accessed from Windows 8.1 H-V Management Tools is working fine.

Anybody any idea?

According to this it should be no issue

Seb


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