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Server 2012 Datacenter Upgrade to Server 2012 R2 Datacenter

February 16, 2015, 12:29 pm
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Good Day Everyone,

Ok so my dilemma is that I HAVE to upgrade one of our 2012 Datacenter Servers w/Hyper-V hosting to 2012 R2. The part that troubles me is that I have 3 Production VM's on this server, do I have to migrate these off the Host Controller before I conduct the upgrade? Can I shut them down and just conduct the upgrade? What is the risk? I have backups of all the VM's, however I do not have another server currently setup to handle the Live Migration as they are full, but I could make something work if I had to move them before the upgrade.

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-credential parameter doesn't exist in new-vm cmdlet

February 16, 2015, 1:44 pm
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Hi friends

in new-vm cmdlet, there is -computer parameter but there is no -credential parameter to use when we are going to create a vm on that remote computer.  what bad ! has powershell team forgotten it ?

now what is the workaround ?


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Hyper-V Replica Broker to multiple CSVs

February 16, 2015, 1:50 pm
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With some help from the TechNet community and a whole lot of trial and error, I have successful configured my failover cluster and performed a couple of planned failovers. Hooray! However, I have 3 CSVs on my DR cluster and would like to utilize the entire disk space for replication. I have a replica broker on the primary side (not configured) and one on the DR side that points to the primary broker and points to 1 volume on the DR cluster for storage. I just found out that I cannot add additional volumes in the specified servers section by pointing to the same primary server. So do I  (A) make multiple brokers on the primary side with unique names and point them each to a CSV. (B) Delete my volumes and make one big one to facilitate all the replicas? Is there a third or even fourth option I haven't contemplated. Obviously, I would like to keep the setup as simple and efficient as possible. Thank you in advance for any help.

Brian Gilmore Lead IT Technician Don-Nan Pump & Supply

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Designing Remote Site Failover (Hyper V Replication & Failover)

February 16, 2015, 3:21 pm
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Hi All,

We are looking to run a pure Windows 2012 R2 environment for our main office (New York) and want to design as best an instantaneous failover solution to a remote site (Chicago) given we have various and numerous outage problems.

MAIN OFFICE (NEW YORK)

SonicWall NSA220 Router

Dell Server 1 (running Hyper V 2012 R2)

  1. DC Server VM (DC, DNS, DHCP, File Share, etc)
  2. DirectAccess Member Server VM

Dell Server 2 (running Hyper V 2012 R2)

  1. Exchange Member Server VM

Dell Server 3 (running Hyper V 2012 R2)

  1. Database Member Server VM1
  2. Database Member Server VM2

50 Workstations

REMOTE OFFICE (CHICAGO)

Sonicwall NSA220 Router (connect to MAIN OFFICE via VPN)

10 Workstations

Everything I've been readying about Hyper V 2012 R2's awesome Replication & Failover solution leads me to believe we can simply setup the same amount of servers to the Remote Site, connect the two sites via Sonicwall VPN, and then copy the VM's to them using Replication (first local copy, then replication over WAN VPN), and then...when a failure occurs, we simply spin up the VMs at the remote site for near instantaneous failover (along with changes to DNS, MX records, etc.)

Is what we are considering a solid, cost effective solution?  Or should we be setting this up some other way?


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Split volumes on a VHD?

February 17, 2015, 1:27 am
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Hi,

I have one 300Gb VHD file containing C: (O/S 100Gb) and D: (data 200Gb). How can I extract
each of those volumes so that they reside on individual VHD's?

So, i want to go from this:

1 x 300Gb VHD C: (O/S 100Gb) and D: (data 200Gb)

to 

1 x 100Gb VHD C: (O/S)
1 x 200Gb VHD D: (data)

Is there a tool to do this or via powershell?

Thanks
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Mous is missing in VM

February 17, 2015, 2:47 am
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Hi,

I have parent server Windows 2012 R2. There are 4 Virtual Machines (VM) with Windows 2012 R2 server installed.
I am accessing VMs via remote desktop.

Now three machines are OK. The last one I can connect only via Hyper-V manager.
But mouse pointer is only dot. I checked devices, there is no mouse device.
In the event. Log is message:

The driver \driver\mouclass failed to load.

I tried to install Integrated services bat there is latest version 6.3.9600.16389.

Can anybody help me?

JN

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Fabric Resource & Virtual Switch help

February 17, 2015, 3:05 am
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Hi,

Apologies if this is a silly question.  Basically we have a couple of Hypervisors HP Blade.  The first Blade has a virtual network teamed NICs which give the guests network access.

When I provision an additional blade, I have to create another virtual switch rather than use the switch previously created.  Am I correct in understanding that there needs to be one overall switch added in to each blade rather multiple VSwitches for each blade?  And if so how would I go about creating it?

Currently we have a VSwitch on blade 1. But looking Blade 2 nothing is available so I have to create a second.  If we ever fail the clients presumably the guests loose connectivity because it's set up incorrectly?  How do I go about creating it so that it's done with the bigger picture in mind?  Also how would I do this without affecting the current guests on blade 1?

Any advice would be appreciated and apologies if this question is somewhat convoluted!

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Find Host VHD File correlation to Guest Partition

February 17, 2015, 5:50 am
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Hello everybody,

i have a simple question but couldn't find an answer on my own:

I have a Hyper-V Cluster with several guests, all VHDs are stored in one folder on the Cluster Shared Volume (C:\ClusterStorage).

I installed a SQL-Server (Guest) and added additional 4 VHD-Files all equal in size. I named the VHDs like SQL-Data, SQL-Log, SQL-temp, SQL-Backup.

I could find the 4 Volumes in the guest OS. But unfortunately because they are all the same in size, i cannot identify them - i want to be sure that the SQL-Data Files are stored on the VHD called SQL-Data and not on the one called SQL-Log.

I could find the SCSI-Number in the Settings of the VM and i also find a LUN-Number on the guest at the properties of the disks in disk Manager.

Is this the correlation or how can i find that info?

Thank you,

Tom

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Installing Debian on Hyper-V

February 17, 2015, 7:14 am
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Hi


I am running a PC with Windows 8.1 and have Hyper-V activated. I am trying to set up a virtual machine running Debian.

I have downloaded the the debian "net install" ISO and configured Hyper-V to boot from that image. When starting up the virtual computer I expected it would start from the CD (i.e ISO). Instead I gets a message, "unable to find boot device" (or simular).

After a googling for I while I found the problem, but not a solution.

Normally ,when you boot from a CD, you have 3-5 seconds delay while you are supposet to press a key to start the CD boot process,, but in this case,,, you don't get any delay, so you cant press the a key.

How do I fix this with the Debian "net install" ISO.

//regards

//lg

/regards /lg


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disk2vhd blue screen on start up

February 17, 2015, 10:28 am
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Hello

I have a stand alone win08R2 which I would like to convert and then add to my Hyper-V server.

win08R2: dell precision with mirrored HDD.  HDD is partitioned into 2 partitions (d and D)

win2012 R2: hyper-V is a dell R610 Raid 1 (2drives) raid 0 (4 drives)

disk2vhd is completes no errors, but on boot it blue screens and then reboots into recovery mode:

I have tried the following fixes and nothing seems to work:

http://blogs.technet.com/b/jonjor/archive/2011/10/04/vm-does-not-boot-following-p2v-or-disk2vhd.aspx

http://forum.sysinternals.com/win2k8-r2-p2v-failure-to-boot-vm_topic30732.html

among a few others.. similar but no luck.

can anyone direct me to a better solution??

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Hyper-V could not replicate changes for virtual machine 'VM007': There is not enough space on the disk. (0x80070070)

February 18, 2015, 6:01 am
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Ok. Had a completely successful replication setup 2 days ago and now I don't. I have a 5 node (ProdCluster) and a 3 node DRCluster) that I just got done setting up for Hyper-V replication. . As I stated everything worked fine, but I realized that my volume setup on the SAN would not work for me. So I shut down the replica broker, removed the CSV from failover manager and removed the volumes. I set up a new 15 tb volume that was going to be the sole volume for my replicas on the DR side. I formatted the volume. Added it to failover manager. Set it as CSV. Pointed the replica broker to it and have not been able to replicate ever since. Also, I am left with the undeleteable .xml files for each VM that an attempt was made on and cannot find the process that is using it. Tried shutting down VMM as I had read that VMM could be the culprit. I'm not sure if the issues or related and obviously the disk size failing the replication is the major issue. An 80gb test VM couldn't possibly fill up a 15tb volume. Help.

Brian Gilmore Lead IT Technician Don-Nan Pump & Supply

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Remove "Ghost" Virtual Switch

February 18, 2015, 6:55 am
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Hi 

I'm currently having an issue regarding virtual switches in Hyper-V on Windows Server 2012R2.

When i try to add a Hyper-V server as a new node in the Cluster manager, I  get error during the verification.

The tests claims that the host I'm trying to add has several virtual switches. But those switches has been removed from the host.

I have reconfigured the network adapters and even tried to reinstall Hyper-V on the host, but the error remains.

Anyone who knows where the configuration for the virtual switches is stored, and if it is possible to remove the "ghost" switches manually?

Thanks

Rickard

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Server 2012 R2 Hyper-V cluster nodes BSOD

February 18, 2015, 7:15 am
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We have an 11 node Hyper-V cluster running Server 2012 R2 with all latest updates.

We have had an ongoing issue with nodes BSODing or hanging. 

Specs:

Hyper-V Nodes-

128-256GB of RAM per node, depending on generation. 12-32 cores. None of the machines are starving for resources. We have a cluster setup through SC VMM 2012 R2 that optimizes the VMs every 30 minutes. The vhd's for VM's sit in a SMB 3.0 share hosted by a SOFS cluster w/ Storage Spaces on a JBOD. Each Hyper-V host utilizes 2 x10Gb Intel NIC cards (either X520-T2 or X540-T2 depending on node) in a NIC team that is currently set to active-standy

We have tried:

adjusting VMQ settings so each NIC uses different cores

Switching NIC team from Active-Active to Active-Standby.

021715-19625-01.dmp2/17/2015 3:45:51 PMDRIVER_IRQL_NOT_LESS_OR_EQUAL0x000000d100000000`0000002800000000`0000000200000000`00000000fffff800`25529777MsLbfoProvider.sysMsLbfoProvider.sys+e777x64ntoskrnl.exe+1509a0C:\Users\wschenk\Desktop\021715-19625-01.dmp3215 9600303,960 2/17/2015 3:48:02 PM

William R Schenk

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Using Hyper-V replica for DR

February 18, 2015, 2:53 pm
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Hi All,

Looking for a bit of advise/guidance re using Hyper-V replica to setup a DR environemnt.  I have a clustered Hyper-V environment running AD, Exchange and a couple of databases. Basically what I was hoping to do was use Hyper-V replica to replicate the VM's to another stand alone Hyper-V server (still part of AD just non clustered) and then have these available should our primary site go offline.

Does anyone have experience on this and think it is the right solution to use for this? Any issues people have run into in the past would be much appreciated so I know what I am up against when trying to set this up. 

Thanks


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Host vs Guest disk performance

February 18, 2015, 7:01 pm
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I've got a disk performance issue in my HV cluster. I have 2 ibm x3850 x6's clustered running server 2012 R2 with and IBM XIV connected via 8gb fiber channel.  When I run my SQLIO test from the host to XIV drive (CSV or drive letter), I get 180,000 iops / 1300MB throughput.  When I run the same test from a guest VM with its vhdx on the same CSV, I get 30,000 iops and 250MB throughput. 

My guest VM is server 2012R2 (gen2, fresh install).  Where it gets even more interesting is that when I do a passthrough disk to the same VM, I get 90,000 iops / 700 MB throughput.  Everything I've read online claims passthrough and vhdx should be very similar performance, as well as host and VM performance.  There are no other VM's on the host.

Has anyone come across this before? 

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Dynamic memory not released to host

February 18, 2015, 10:56 pm
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Dear Techies,

Ours is a small Hyper V virtual server infrastructure with three DELL power-edge physical hosts(Windows server 2012 Datacenter) and around 15 virtual machines running on top of it. The hosts are added to fail-over cluster. Each host has 95 GB RAM. All the VMs are running Windows server 2012 standard edition.

We have installed terminal services(TS licensing, TS connection broker, TS session host) in four VMs with the following dynamic memory settings:

Start-up RAM: 2048 MB

Minimum RAM: 2048 MB

Maximum RAM: 8192 MB

Below mentioned applications are configured in the server:

  1.       Nova Application Installed
  2.       SQL Developer Tool is Configured (ODBC Connection established for Database communication)
  3.       FTPs communication allowed for File Transfer
  4.       McAfee Agent is configured (Virus Scanner)
  5.       Nimsoft Robot Agent Configured – Monitoring
  6.       Terminal Service
  7.       Enabled Multiple terminal sessions based on customer requirement
  8.       BGinfo tool configured through group policy for customized desktop background

The average memory utilization in the terminal servers are 3.6 GB. As per dynamic allocation the maximum RAM requirement/allocation till date is 4GB. As seen in Hyper V console, the current RAM demand is 2300 MB and assigned memory is 2800 MB.

However, the earlier assigned RAM in the server is ballooned/faked to the VM as driver locked memory. This is by design. Despite the memory being released back to the host, the server still shows up the 4Gb which makes the memory utilization report from monitoring tools look 80% (3.2 GB out of 4 GB).

As a result, the memory utilization report is always based on the current dynamically allocated RAM and not calculated based on the maximum assigned RAM(8GB in this case). To make it clear: If the currently assigned RAM is 4Gb and utilization is 3.2 GB the utilization % is reported as 80%. However, if calculated in accordance with maximum RAM capacity of the server it would be 40% ((3.2/8)*100).

Is there any way to release the driver locked memory from the VM.?

Regards, 

Auditya N

 

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Advise on MPIO is required

February 19, 2015, 1:23 am
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VM Connect takes long time

February 19, 2015, 5:47 am
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Hello,

I have a new cluster using 2012 R2 and have the problem that if I want to connect to a VM from the Hyper-V Manager (or Failover Cluster) the connection takes about 10 seconds or sometime even longer (20 seconds).

Does someone have any idea why this could be happening? Currently the servers are running in an isolated environment without internet connection, there are 2 DCs (2012 R2) with DNS which have been newly deployed just for this environment.

Any idea how to make the connection to the VMs faster? Could the lack of internet cause this problem?

Regards

Paul

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Unable to delete VHDX file in clster shared volume

February 19, 2015, 6:01 am
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Dear all,

I am trying to delete VM from SCVMM , i have deleted VM from SCVMM  & Hyper v manager but when i checked in CSV vlolume i found the Virtual disk image file is still there, i tried to delete it manually but it gives me error that file is currently used or open by another program. please help me how to delete the VHDX file in cluster shared volume?

Many Thanx

Amol

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Does my home computer have Hyper-V ?

February 19, 2015, 9:53 am
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Does my home computer have Hyper-V ?

As it's not in Turn Windows services on or off - Windows 8 is fully updated.

Thanks.

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