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What is the merge function in Hyper-v

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hi , 

i have a question about Hyper-V

i am using replication to another server , and for some reason i see merge in progress showing up ...

can anyone explain what merging exactly means ? 

as far as i can tell , it also looks like hyper-v creates a snapshot from the virtual machine when it is replicating changes to the replication server , or am i looking at it in a wrong way ?


Cisco Unified Communication Manager (CUCM)

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I have found only a single document describing a successful install (hacked) of CUCM (v 8 or 9) on Windows Hyper-V. 

We are all installing VMware or running an ESXI server.

There are no issues installing Red Hat on Hyper-V, right?

I don't get it.

CME is installed directly on a router. CUCM is standalone. I cannot find an answer from Cisco. Everyone says it cannot be done, except in that one article. Ultimately, it does not matter, but why the extra step installing VMware?

HYPER V 2012 - SNAPSHOTS

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Hi Everyone

I have a big problem and i hope somone can help me out here because i cant find any documentation or any forums agardin this.

I have a Windows Server 2012 with HyperV roles installed.

I have 3 virtual serveres and 2 Disk about 900 GB.

On of This serveres has run on 3 snapshots.

The problem is this at wee turn the virtual server Down and we delete snapshots on hyper v and mergning Progress begin... but we quickly notified the diskspace its been bigger bigger bigger and the disk was 10GB from to be full so we canceled the merge.

After that we start the virtual machine Again and now we have a VHD file and 3 other AVHDX files wich is 162GB, 130GB, 324GB

We have about 30 GB free storage on that disk and the machine is on production.

On HyperV Manager cant we no more se the snapshots of this machine but on that folder where machine is can we se 3 snapshots and 1 vhd file.

Just one of thoose AVHDX files (162GB) is in use and not the 2 othe snapshots and VHD.

What should i do and how can i merge those file to AVHD and never make a snapshot Again.?

I Have atached a Picture so you can see what i mean.

THANKS GUYS

Expanding Unbuntu Linux Disk Space

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Hello,

I was expanding a Linux guest operating system today from 30GB to 50GB. After expanding the disk I started the guest operating system and noticed  a lot of data missing. Can someone explain why I may have lost this data and if I could recover it...

A few things to note that I did have a previous snapshot when I did expand the disk

Also

I now see two files a .vhd at 50GB and another with the file type of .avhd at 30GB

I have suspect that the .avhd may have my missing data as some simple searching states this is a snapshot ...is there a way to revert back to this or get the data within .avhd to be within the 50GB .vhd file??? Apologies if this sounds confusing.

VHD Size reporting with VM

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Hello all,

 

I was hopingo to get some insight on what I am seeing here.  I have a Hyper-V host running on a Windows 2008 R2 server core deployment.  My Guest VM is Windows 2008 R2.  Data partition of the VM resides on 1TB fixed VHD.  The VM reports a disk capacity of 999GB.  The amount of data on the drive that I can account for is 409GB.  However the VM is reporting that 770GB is used and that only 229GB is free.  I am rigged to see hidden files.    I am concerned that it appears that 360+ GB of drive space is unaccounted for.  I am fairly new to hyper-v so I fully understand if this is a stupid question.

 

Would be grateful for any assistance.

 

Stoney Heflin



VMQ Connection Policy in on Cisco UCS Enviornment

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Hello,

I have built a Windows 2012R2 Hyper-V cluster on Cisco  B200M3's 2.21d firmware VIC 1240. I was unable to get the OS to enable VMQ on the NIC's that I presented to Hyper-V for VM networking. I finally found that I needed to create a  VMQ Connection policy and assign that policy to the NIC's at the hardware level that I wanted to use VMQ on. In this policy there are two settings required 1) Number of VMQ's and 2) Number of Interrupts. This is where my question comes in, how do I figure out what values to use here?

So I opened a support ticket and was given the following:

  • The number of interrupts value is calculated by - the total number of CPU threads that the server has
  • The number is VMQ’s is calculated by  The Number of VMQs = Number of Synthetic NICs (VM NICs) + 1) - this was clarified again later as the number of NIC's on the VM's that are present on the host. So if I have 25 vm's 1 NIC each my value should be 25.

The Interrupts makes sense however the VMQ's does not. I have a cluster and VM's are migrated back and forth between nodes for obvious reasons and we also add and remove VM's on a regular basis. I can obviously change the number of VMQ's to match when changes are made but seems very unreasonable to me.

So that all said, does anyone else have feedback on these settings?

Networking considerations for new Hyper-V host

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Helllo all.

We have recently upgraded one of our IBM Bladecenters to use 10g switch modules in the bladecenter connected to a Juniper 4550 10g switch on our LAN.

I am trying to build a new Hyper-V 2012 R2 host server utilizing the extra bandwidth, but im not sure exactly which way I should proceed. This host will ultimately be part of a cluster with several other hosts. I have 2 scenarios:

scenario 1:

I end up having a total of 8 "physical" NIC's in the OS thanks to the IBM virtual fabric

2x 5gb nics (used with MPIO for ISCSI to SAN for CSV)

4x 2.5 gb nics

2x 1gb nics (one is for a DMZ network connection, the other can possibly be used for Hyper-V management network)

Ideally I want to have the 2.5 gb nics teamed so I have redundancy, however, im not sure exactly what Hyper-V traffic I would route over each network team. Currently in our other hosts that are running 1g nics/teams we have big problems with ISCSI, VM traffic and Live migrations (guests time out during a live migration) bottlenecks so im trying to remedy that with the additional bandwidth and dedicating networks.

Scenario 2: 5 Nic's

2x 5g nic (iscsi for CSV)

1x 10g nic

2x 1g nic (management and DMZ)

In this scenario I guess I could use the 1 10g nic and carve it up in Hyper-v using VLAN's and QoS to achieve the same goal. I'm curious if there would be any benefits to doing it this way other then being able to carve it up using the vnics etc. We have never implemented Hyper-V in this fashion so I haven't seen it in a real world setting.

I know there is a million other factors to take into consideration, but im trying to get a picture on a high level of what others might do in a similar situation. I can find recommendations from MS and TechNet etc on the networks and what should have its own dedicated network etc, but another question I have that could help me is out of the Hyper-V networks (Vm, livemig, management, csv, heartbeat etc.) which networks would you dedicate the most bandwidth to? which would you absolutely have as its own network and which do you feel are safe to combine?

Thanks for any insight you can provide.


Licensing for Windows Virtual Desktops (VDI) - do I need Virtual Desktop Access (VDA) licenses?

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Hello.  I am trying to figure out what type of licenses I need to achieve the following:

 

- Windows Server 2008 R2 running Hyper-V

- 25 virtual desktop on Hyper-V running Windows 7 Professional

 

Do I need a "full" license of Windows 7 Professional for each virtual machine, AND another license (let's say maybe Windows 7 Starter) running on the actual PC's that the users will be using?

I came across this article regarding Virtual Desktop Access licenses, do I need that?  Or would I be fine just purchasing 1 copy of Windows 7 for each PC?  In that case should I choose Starter or Professional?  The desktop PC's that users are using are older Pentium 4's so I wanted to keep the load on them minimal.

Thanks!

 


Recover a VHD file from a formatted volume

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Apologies if this is not the right forum.

So I was preparing a new server to host virtual machines. This is a Dell PE r710, Dual quad-core Xeon processors, 48 GB RAM, 2x 72 GB SAS drives. The server has Hyper-V Server 2008 R2 installed. iSCSI volumes hosted in a Dell EqualLogic SAN will host the actual virtual machines. We have 5 of these with similar setups, 3 of which are setup in a cluster. We have 2 set aside for additional projects. These will not be clustered as they will be hosting Lync virtual machines. Anyway we have 1 server setup and working with 2 VM's. The 2nd server will initially host 2 additional VM's. My goal was to format the iSCSI volume on the 2nd server and prepare it to host VMs. Except I accidentally logged into the 1st server (it's one of those days - I was interrupted as I was typing in the server name into Remote Desktop and it auto-populated the first server instead of the 2nd) and begin formatting the volume. Needless to say Lync stopped working and the VMs crashed. I immediately recognized my mistake and stopped the format but obviously it was too late.

I was hoping I could recover the data on that volume. We have a trial of this software called GetDataBack NTFS edition. It can recognize the volume ok and it can scan it and see files. Unfortunately it does not see actual VHD files. Instead what happens is that it sees the VHD files as separate volumes/partitions/etc and recovers the data within the VHD files. Not sure if it should do that, waiting on a response from Runtime. Kind of cool in a way if we ever needed to recover data within a VHD file. Anyway, does anyone know of software that can recover data from a volume but not scan the contents of the vhd file and include that data in the recovery? By this I mean I want to recover the actual VHD files, not the data within. Perhaps Virtual Machine Manager can do something? We do have it installed and manage our VM's with it. It would save us the trouble of re-deploying Lync. Apparently there's a lot of ADSI edits needed to undo the changes Lync did to AD/ Even migrating users back requires some ADSI edits. Trying to find those online someplace just in case.

We did not have backups yet of these 2 VMS as we just recently got them setup and have moved a few users over (some of us from IT). We still had some configuration/tweaking/adjustments to make before migrating the remainder of our OCS users. I know, I know, backup backup backup. The SAN we have can even do snapshots of iSCSI volumes but we didn't even think of enabling it yet.

Regardless in what happens with the VM's, I enabled Windows Server Backup and will immediately setup nightly backups once the VM's are operational again. I will also have our SAN admin enable snapshots, and just for laughs I will also enable snapshots on the individual VM's. We're also currently testing out Data Protection Manager. Kind of wish we already had it implemented....sigh...

 

Thanks,

Banging my head against a board with a nail in it...

USB support in Hyper-V 3 2012R2

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Hello All,

I need attach usb drive to guest machine on hyper-v 2012R2,

Could someone please tell me that how I can do that??

Thanks in advance

Windows 2012 Hyper-V Replica and DCs - Two-Way replication - Vice-Versa replica

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I have 2 Hosts, Dell PowerEdge Servers, each one running a Windows 2012 R2 standard OS

Each Host have a single VM, running Windows 2012 Rs standard OS, each one with: DC/AD+DHCP Failover+WINS+DNS+WSUS+ArcServe Agent for Backup

AND IF...

Can I create a hyper-V replica, using the following architecture:

Physical Host1 with 1 VM, replicating the single AD/DC VM to the Physical Host2

and vice versa:

Physical Host2 with 1 VM, replicating the single AD/DC VM to the Physical Host1

It will be a bad idea do a "cross-replica"?

How can i avoid at 100%, the chances in running the same DC instance, twice, in planned and unplanned faiolvers?

The WIn2012R2 have all protection mecanisms to avoid this? And if happend, what do i do?

Live Migrating Virtual Machines with Shared VHDx

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I am facing problems when live migrating a Virtual Machine that is using Shared VHDx.  The Virtual Machine gets migrated that is the configuration gets migrated, but the Virtual Machine fails to start up and if manually tried, it fails too.  What is the method to to live migrate virtual machines that are using Shared VHDx.  Thanks in advance. 

Windows 2012 and Hyper-v generation 2

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Hallo,

I have a question regarding Windows server 2012 and hyper-v generation 2.

Is is possible to run the VM from generation 2 on a Windows server 2012?

Thank you

Best regards

Heartbeat Network inside Hyper-V Failover Cluster

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Dear All,

            I need to build an SQL Server 2012 SP1 Two-node cluster inside Hyper-V Failover Cluster.  There is only one virtual switch in the Hyper-V Failover Cluster environment which is being used for communication to the outside world using VLAN Tagging.  Now, since SQL Server 2012 Failover Cluster would require a heartbeat network as well and although possible to assign VLAN tag to the heartbeat adapter and use that for hearbeat, but since there would not be any gateway on the heartbeat network, it would render the VLAN tagging useless, so is following plan good enough:

1.  Create an Internal Virtual Switch on all nodes of the cluster with the same name

2.  Link the heartbeat adapter of the virtual machines to the Internal Virtual Switch

Is it good enough? or is there any other better way?

Thanks in advance.   

Hyper-V Failover Cluster Networking Configuration After Install

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Hello All,

            Is it possible to install hyper-v and failover or in other words create a hyper-v failover cluster and then configure the networking part of the solution later?  As I am coming into terms with the networking part of it, wanted to do it later after the install.  Is it possible?

And from later configuration, I am trying to say, creation of NIC Team, Virtual NICs, VLAN tagging, etc.

Creating Virtual NICs on Hyper-V Failover Cluster Host

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Dear All,

            How to create Virtual NICs from a teamed interface that is to be used for Hyper-V Failover Cluster?  THanks.

NIC Team Configuration

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Dear All,
           I am creating a Hyper-V Failover Cluster, but I am slightly confused on some aspects of it.  The servers have 4 NICs and I am planning to make two NIC Teams.  One for Virtual Machine and One for Management (Cluster+Heartbeat+LiveMigration).  The Virtual Machine NIC Team would be used as an external switch inside Hyper-V and the other NIC Team would be used only for Management(Cluster+Heartbeat+LiveMigration) with no connection to Hyper-V in terms or switch.  In such a scenario:

1.  How both teams should be configured? specifically the Teaming Mode and Load Balancing Mode of both teams? Switch Independent+Hyper-V for Virtual Machine and Switch Independent+Address Hash for Management Team?

2.  How would I be managing all the networks (Cluster+Heartbeat+LiveMigration) in terms of connections and networks on a single Teamed NIC for Management? Additional Interfaces through NIC Teaming Utility for each network?

Thanks in advance.

 

Difference between Interfaces of NIC Team and Virtual NICs of Switch

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Dear All,
           I am slightly confused about the difference between the intefaces that we create through NIC Teaming Utility in the Server Manager and the Virtual NICs that are created through Add-VMNetworkAdapter?  I have only created the interfaces through utility so I only know about them, but I have seen blog posts with respect to Virtual NICs as well and almost all of them have been done through powershell.  So, I would love understand them both and their use in respective situations.

Hyper-V Failover Cluster - 4 NIC - QoS

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Dear All,
           Please have a look at the link below:

http://technet.microsoft.com/en-us/library/jj735302.aspx#bkmk_1

I am trying to achieve the third configuration (4 NICs in two teams), which is thrid on the list.

I have built two NIC Teams as suggested in the configuration.  One for Virtual Machines (Switch Independent, Hyper-V Port) and one for Management OS (Switch Independent, Dynamic).  The TCP/IP Settings on NIC Team for Virtual Machines has everything configured that is IP Address, Subnet Mask, Gateway and DNS.  The TCP/IP Settings on the NIC Team for Management OS has only IP Address and Subnet Mask defined.

1.  Is this the only configuration required at Management OS NIC Team or do i need to provide the Gateway and DNS as well? How will two-2 Gateways be handled if gateway is required on both teams? or they will work?

2.  Secondly, how will I be adding tNICs to the NIC Team for ManagementOS for Cluster Communication, Heartbeat and Live Migration? What would be the TCP/IP settings (IP Address, Gateway, DNS) on those three tNICs? would they need to be on different networks, i.e. different network address for all three tNICs?

3.  Thirdly, how will I be adding vNICs to virtual switch of hyper-v in case there are virtual machines who are from different VLANs? What configuration is required on the hyper-v for different VLANs to work on virtual machines?

4.  Fourthly, what would be configuration required on the network/switch level?

5.  Is configuration for both teams correct?

Thanks in advance.


Create Virtual NICs of a Teamed Interface

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Dear All,

            I am building a Hyper-V Failover Cluster.  I have created a team (two physical nics) which I plan to only use for Cluster Communication, Heartbeat and Live Migration.  I have following questions:

1.  How to create virtual NICs out of this teamed interface and assign them to respective networks?

2.  Do Cluster Communication, Heartbeat and Live Migration Networks have to be on different subnet or they can be part of the same subnet as well?

3.  In both cases that is same subnet or different subnet, how would networks be assigned?

Thanks in advance.

 

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