We have a Hyper V server with Windows 2008 R2 SP1.on this server there are 2 VM s one is a VM for Symantec Endpoint manager and the  other is a SBS 2011 server.

Windows backup is enabled on the Hyper V server and getting backed up to a 2TB USB 3 drive.

Intermittently Hyper V backup fails with the following error message

The backup operation that started at '?2013?-?09?-?20T03:30:10.642000000Z' has failed because the Volume Shadow Copy Service operation to create a shadow copy of the volumes being backed up failed with following error code '2155348129'. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.

When this happens the Hyper V VSS writer displays the following error message

Writer name: 'Microsoft Hyper-V VSS Writer'

Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}

Writer Instance Id: {e1f3a9eb-4e83-4998-bd7d-ef5d725dd9e2}

State: [5] Waiting for completion

Last error: Unexpected error

On the Hyper V VMMS admin log entries similar to the following is listed with event ID 10111. Please note that the entry I m posting here is related to the SBS VM I can see entries for the other VM as well.

Failed to mount the virtual hard disk '\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy2303\Hyper-V\SBS2011\Virtual Hard Disks\SBS2011.vhd' for virtual machine 'SBS2011' (Virtual machine ID C093E570-411D-41E9-A187-FC4303A57A4A).

SBS2011.VHD is mounted as the C drive on the SBS VM and this is a fixed size VHD.This is a 200 GB VHD and 102 GB of free disk space remains on the VHD.

SBS backup is getting written to a physical pass through disk and its getting completed without any issues. SBS backup starts and gets completed few hours before the Hyper V backup starts. All the VSS writers are stable on the SBS VM and the only VSS /SPP related warning message (No Errors) on the SBS is as follows.

Volume Shadow Copy Service error: Failed resolving account spsearch with status 1376. Check connection to domain controller and VssAccessControl registry key.

Operation:

   Initializing Writer

Context:

   Writer Class Id: {4dc3bdd4-ab48-4d07-adb0-3bee2926fd7f}

   Writer Name: Shadow Copy Optimization Writer

Error-specific details:

   Error: NetLocalGroupGetMemebers(spsearch), 0x80070560, The specified local group does not exist.

I don’t think it has any connection because this warning is listed on the days when the Hyper V backup gets successfully completed.

There are no VSS/SPP errors/warnings on the Hyper V application log.

If we reboot the Hyper V server (thus rebooting the SBS server) then we can go for about a week or so without any further failures.

Would really appreciate if someone can assist us on this in order to find a permanent resolution .

Thanks

Dhanushka

Hello,

Hyper-v 2012 on 2 servers (SRV1, SRV2). VM its server 2012. Domain. No cluster. No share folders.
SRV1 have full_access to the VM folder in SRV2.
SRV2 have full_access to the VM folder in SRV1.
Firewall disabled.
Live migration use Kerberos.
Constrained delegation configured for Microsoft Virtual System Migration Service use Kerberos.

When I run "move" for VM:
Migration did not succeed. 

Failed to create folder '\\SRV-1\SRV-2.4148531528$\{562ddbf2-2115-11e3-b1d6-001e671938db}\vm\srv-vm-1\Virtual Hard Disks': 'General access denied error'('0x80070005').

How to fix it?

Additional info: 

I can move VM from SRV-1 to SRV-2 and from SRV-2 to SRV-1, if I do this from SRV-1 (or SRV-2).

If I move VM fom "Hyper-v Manager" snap-in, I take error fom "Domain-Admin" account, not from SYSTEM account.

Hello everyone

I am planning to set up WinServer2008-Enterprise and I will install 2 VM using hyperv.

The machine I am planning to do this on has 2x500GB disks which I will setup as RAID1.

How much space should I allocate for the windows OS and for the 2VMs? 1VM will be used to setup a print server and I haven't decided what to do with the second one yet. There is no exchange, only active directory will be used.

Any suggestions please?

Many thanks

Hello All,

I recently built a 2 node cluster using Windows Server 2012 R2. I had the same configuration running on non R2 2012 with no problems. I attach a guest to a virtual switch and can see the ping times (normally less than 1ms) jump to 100ms to 500ms and back down to 1ms. If i try to access the network from this server ping times and network performance of the VM grinds to a halt. We are using New Dell R620's for hardware and Broadcom Netextreme II cards. No complaints of drivers in OS, 100% pass on cluster verification. Anyone else have this problem?

Hi everybody!

I am rather shocked, I just opened an older snapshot of my virtual Domain Controller (Hyper-V) without saving the actual state. Now my Active Directory stopped working. The Domain Controller cannot be found. The problem is that there is no other domain controller and I cannot backup the AD right now. Futhermore I do not unterstand the problem. What is wrong about the consistency if there is only one DC in the whole Domain?

Thanks very much for help!

Greetings,

Martin

I have installed a new System based on Windows Server 2012 R2 Standard RTM (german)

So the Host is running Windows Server 2012 R2 with Hyper-V Role.
Then I have installed a Windows Server 2012 R2 Standard as guest, which is running fine, except the integrating Services.
(Generation 2, dynamic memory)

The guest is not shutted down, when I shutdown the host, even when configured to do so (shutdown guest).
So the Hyper-V guest is just powered off, and I will get a power off warning in the guests eventviewer on the next start.

As the guest is Windows Server 2012 R2, the Integration Service can't be installed, as they are installed automatically. Also the Services seems to be up and running on the guest.

When connecting the guest from the Hyper-V console, the shutdown button from the console is working.
Also the shutdown command from inside the Hyper-V Manager works correct.

So what I'm missing?

Severin

A friend of mine and I just had a conversation about creating multiple VM's and he said that when he needs to create multiple VM's, he just creates one (in Hyper-V Manager or VMM) and then, before joining the machine to the domain, he makes multiple copies of the VHD.  Each VHD then becomes an independent machine.

Are there any problems creating VM's this way?  I know that I have done it in the past but usually only when I needed to set up a test environment that I was going to throw away after a bit, never for production machines.

Bert

Our two node hyper-v cluster is currently directly connected to our Iscsi solution solution. we in in the process of expanding this and are going to put in a couple of cisco 3750x switches. I have a couple of questions about the switch configuration.

1. should the switches be configured in a stack configuration, or idependant? what are the pros and cons of this.

2. I was planning on keeping the switches dedicated for iscsi with no vlans for data. This configuration has always been recomended by instructors. Is there a microsoft best practice on this?

Thanks

SC

Currently, I have a 2 node Windows 2012 Hyper-V cluster with 7 VMs serving 75 users in a typical office.  Each node has a single iSCSI nic connection to a single HP 2810 24 port Gig switch.  Flow control is on and Jumbo frames are enabled at 9000.  The SAN has two connections to the switch configured as LAG.  Nodes are Dell 710s w Broadcom nics.

My question is....

If I enable MPIO on the nodes and connect a second nic to the iSCSI switch, will that help with performance or just redundancy?  I'm not so concerened about redundancy because if one nic goes down on one node, the other node can support all VMs.

And then the same for the swtich.  If I connect a 2nd identical HP 2810 switch and stack it, and have each node have a connection to each swtich, i'm assuming that will only help with redundancy right?

Do you think these swtiches are fine for my application?

Thakns for any advice you can give.

Jeff

I am trying to virtualize a Win2003R2 server onto Win2012Datacentre Hyper-V using Disk2Vhd however the new VM locks up after 3 days because the OS requires re-activation.

I don't really want to re-activate it until I have finished evaluating the implications of this virtualization.

How can I proceed for a while without re-activating Win2003R2?

I've read a number of articles and I apologize for my lack of understanding. I have a 3 Hyper-V 2008 R2 Datacenter environment (Rougly 10 VM's across the 3 Hosts) all connected to a SAN via iSCSI Initiator utilizing Storage and Cluster Shared Volumes within Failover Cluster Manager. I do NOT have any systems configured under Failover Clustering within Services and Applications. I might add a server to the Services and Applications section when manually migrating a VM between hosts but the VM's do not stay there long. We have 1 license to upgrade 1 Host from 2008 R2 to 2012. Our hope was to upgrade one of the Hyper-V 2008 R2 servers to 2012 and utilize the additional CPU feature in 2012 on a few of our VM's.   I'm reading, "You can not use W2K12 and W2K8 R2 in one Failover Cluster. Failover Cluster requirements : All nodes must have identical OS Level."  Does this mean that I'm unable to utilize the existing Services and Applications piece which I'm currently not using or does this mean everything including Storage and Cluster Shared Volumes is completely different between the two different OS? Having only 1 license, is it a good idea/or even possible to upgrade 1 of the 3 hosts with the goal to give a select few VM's more than 4 CPU's on the 2012 Hyper-V Host?

I know that dynamic memory capability was added to linux in Windows Server 2012 R2. I was told that this would also added to Windows 8.1. I am running windows 8.1 enterprise RTM. I am also running Debian 7.1 

As you can tell i'm running kernel 3.2.0.4. I know the drivers for hyper-v are now being integrated into the linux kernel. What version of the kernel was the dynamic memory piece integrated into the linux kernel?  I have dynamic memory enabled & it definetely is not working (on linux at least). Memory never goes down from the value specified in the "Startup RAM".

Any help would be appreciated.

thanks....

Hi,

I will be purchasing a dell server to run hyper-v with 3 virtual machines running on it. 

1 - fileserver which needs 500gb storage

1 - terminal server which needs 100gb storage

1- dc controller which needs 60gb storage

Now my question is which is best practise, can I just dump everything onto the 1 TB drive that came with the server and have virtual harddrives and mirror it. or have separate physical drives for each virtual server and mirror them separately or ?

thanks

I have a Windows 2012 Hyper-v cluster with two nodes. All my VMs and VHDs reside in the CSV on an Equalogic SAN. Recently, I had a data VHD become corrupted on my file server, so I moved all my data from the corrupted VHD to a new VHD. After that was complete and the server was back online, I copied my old corrupted VHD onto an external USB hard drive. Now I am trying to access this old VHD by mounting it directly on the 2012 node and I get an error:

Couldnt mount file

the disk image isnt initialized, contains partitions that arent recognizable, or contains volumes that havent been assigned driver letters. please use the disk management snap-9in to make sure that the disk, partitions, and volumes are in a usable state.

When i go to disk management, I go ahead and set it to online and then it just shows up as a drive with no partition on it. Have i lost this data? what can i do to get this vhd to mount properly again so i can recover some data from it?

we are getting some random crashes occasionally.  debug always has the same results.  can anyone make anything of this?  the host is up to date with both drivers and updates.  I've been all over the host and can't find any issues.  thank you

Loading Dump File [C:\Minidump\092613-10374-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*C:\symbolfiles*http://msdl.microsoft.com/download/symbols;C:\Symbols
Executable search path is:
Windows 7 Kernel Version 9200 MP (16 procs) Free x64
Product: Server, suite: TerminalServer DataCenter SingleUserTS
Built by: 9200.16628.amd64fre.win8_gdr.130531-1504
Machine Name:
Kernel base = 0xfffff800`b526d000 PsLoadedModuleList = 0xfffff800`b5539a20
Debug session time: Thu Sep 26 02:07:18.299 2013 (UTC - 7:00)
System Uptime: 18 days 8:02:55.169
Loading Kernel Symbols
...............................................................
................................................................
...............
Loading User Symbols
Loading unloaded module list
......
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {3, 2, 0, fffff880048f77a0}

Probably caused by : vmswitch.sys ( vmswitch!memmove+1e0 )

Followup: MachineOwner
---------

0: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

DRIVER_IRQL_NOT_LESS_OR_EQUAL (d1)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arguments:
Arg1: 0000000000000003, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, value 0 = read operation, 1 = write operation
Arg4: fffff880048f77a0, address which referenced memory

Debugging Details:
------------------

READ_ADDRESS: GetPointerFromAddress: unable to read from fffff800b55c5168
unable to get nt!MmPoolCodeStart
unable to get nt!MmPoolCodeEnd
 0000000000000003

CURRENT_IRQL:  2

FAULTING_IP:
vmswitch!memmove+1e0
fffff880`048f77a0 8a440aff        mov     al,byte ptr [rdx+rcx-1]

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  DRIVER_FAULT_SERVER_MINIDUMP

BUGCHECK_STR:  0xD1

PROCESS_NAME:  vmms.exe

TRAP_FRAME:  fffff880082ce2a0 -- (.trap 0xfffff880082ce2a0)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=fffffa8049315dc8
rdx=0000057fb6cea23c rsi=0000000000000000 rdi=0000000000000000
rip=fffff880048f77a0 rsp=fffff880082ce438 rbp=fffff880082ce7a0
 r8=0000000000000004  r9=0000000000000000 r10=0000000000000024
r11=fffffa8049315dc4 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl nz na pe nc
vmswitch!memmove+0x1e0:
fffff880`048f77a0 8a440aff        mov     al,byte ptr [rdx+rcx-1] ds:e080:00000000`00000003=??
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff800b52c6769 to fffff800b52c7440

STACK_TEXT: 
fffff880`082ce158 fffff800`b52c6769 : 00000000`0000000a 00000000`00000003 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`082ce160 fffff800`b52c4fe0 : 00000000`00000000 00000000`0000001e fffff880`082ce300 fffff880`082ce2a0 : nt!KiBugCheckDispatch+0x69
fffff880`082ce2a0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiPageFault+0x260

STACK_COMMAND:  .bugcheck ; kb

FOLLOWUP_IP:
vmswitch!memmove+1e0
fffff880`048f77a0 8a440aff        mov     al,byte ptr [rdx+rcx-1]

SYMBOL_NAME:  vmswitch!memmove+1e0

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: vmswitch

IMAGE_NAME:  vmswitch.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  510cbec2

FAILURE_BUCKET_ID:  X64_0xD1_vmswitch!memmove+1e0

BUCKET_ID:  X64_0xD1_vmswitch!memmove+1e0

Followup: MachineOwner

BarrySDCA

I have installed a core hyperV 2012 server and joined it to the domain. I am able to log onto the server with a domain account. I am able to rdp and ping vis the server name as well as the two IP addresses on the on-board NICs. I am unable to access the server with remote management.

When I open computer management from my windows 8 computer, adn choose Action --> Connect to another computer.. I get the following error:

Computer <blahblah> cannot be managed

<snip>

To enable appropriate windows firewall on remote computer...

<snip>

So I tried to do that and with googling and googling the only problems I see are people solving this problem on a workgroup, and over and over I see 'If I was on a domain, this would be easy'. Additionally, when I try hwremote script it tells me: "No firewall rules found in rule group..."

The only time I was able to get something working on a prior iteration was when I went to a powershell prompt and typed in:

Enable-NetFirewallRule -displayname '*'

But even then when I tried to access disk management to format a partition I got a RPC service is unavailable error. Also I have the exact same errors from two different windows 8 computers.

Does anyone out there have any idea what is going wrong? 

Hi

We are rolling out Hyper-V 3.0 and converting our network from VMware to Hyper-v as we go.

So far so good, but one of the virtual machines I have converted from VMDK to VHD can't be accessed over the network and it can't see outside itself.

I have installed the Intergration Tools (the guest is S2003R2) and it connected it to the same HV Switch as the other VMs.  It appears to have it's NIC there OK and I have given it a static IP address.  It shows it's status as "Connected".  It won't get a DHCP address either.

The only thing I can see that is different from other VMs is that in the VM Network Settings it has a MAC made up of 00:00:etc. when it is both on and off (I would expect it to have 00 if it were off, but not on).  I have attempted to give it a static MAC but this did not fix the problem.

I have uninstalled/reinstalled the Integration Tools but again does not seem to fix the issue.

Any ideas?

Many thanks

Hello!

I have Hyper-V 2012 R2 host with enabled monitoring for VMs: 

Get-VM -ComputerName host-01 | Measure-VM

After host reboot MeteringDuration disappears for all VMs:

PS C:\Windows\system32> Get-VM | Measure-VM | Select-Object VMName, MeteringDuration

VMName                                                     MeteringDuration
------                                                     ----------------
vm01
vm02
vm03

Get-VM -ComputerName host-01 | Reset-VMResourceMetering - Helps before next reboot.

How can this problem may be fixed?

Thank's!