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Hyper-V Issues

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Hello, I seem to be experiencing major issues with Hyper-V on Windows Server 2012. Basically, when I try to add a resource and/or change virtual machine settings in Hyper-V it takes an extremely long time... 30+ minutes to make the change. After a really long time, the state of the virtual machine changes to Off-Critical. This affects other virtual machines on the same box.

This is a new install of Windows Server 2012 with all updates applied. I've also had the same thing happen when no updates were applied.

According to resource monitor, nothing is being pegged. Disk also looks good. CPU is under 5%. Memory is under 10%. I have no idea what the heck is going on. The only thing that I can think of is that I have recently installed new 128 GB of RAM in this box. The memory is obviously compatible as I wouldn't be able to boot otherwise.

I have three 3TB SATA disks in Parity mode used to stored all virtual hard disk files.

Any suggestions would be greatly appreciated.




snapshots merge error

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i shutdown the VM, and wait for the auto merge and i get the following event:
(and there are several snapshots of the VM)
has anyone meet the issue before?

Log Name:      Microsoft-Windows-Hyper-V-VMMS-Admin
Source:        Microsoft-Windows-Hyper-V-VMMS
Date:          1/24/2010 5:42:36 AM
Event ID:      19100
Task Category: None
Level:         Error
Keywords:     
User:          SYSTEM
Computer:      srv01.corp.xxxxxx.com
Description:
The description for Event ID 19100 from source Microsoft-Windows-Hyper-V-VMMS cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.

If the event originated on another computer, the display information had to be saved with the event.

The following information was included with the event:

MAIL <- the VM's name
2B59FB3C-4E98-4828-B0B7-91854EDC51AF
%%3761897492
0xE03A0014

The locale specific resource for the desired message is not present

Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Hyper-V-VMMS" Guid="{6066f867-7ca1-4418-85fd-36e3f9c0600c}" />
    <EventID>19100</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2010-01-23T21:42:36.510Z" />
    <EventRecordID>2771</EventRecordID>
    <Correlation />
    <Execution ProcessID="4780" ThreadID="6292" />
    <Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel>
    <Computer>srv01.corp.xxxxx.com</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <UserData>
    <VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events">
      <VmName>MAIL</VmName>
      <VmId>2B59FB3C-4E98-4828-B0B7-91854EDC51AF</VmId>
      <ErrorMessage>%%3761897492</ErrorMessage>
      <ErrorCode>0xE03A0014</ErrorCode>
    </VmlEventLog>
  </UserData>
</Event>



Log Name:      Microsoft-Windows-Hyper-V-VMMS-Admin
Source:        Microsoft-Windows-Hyper-V-VMMS
Date:          1/24/2010 5:42:36 AM
Event ID:      19070
Task Category: None
Level:         Information
Keywords:     
User:          SYSTEM
Computer:      srv01.corp.xxxxxxxx.com
Description:
'COOTEK-MAIL' background disk merge has been started. (Virtual machine ID 2B59FB3C-4E98-4828-B0B7-91854EDC51AF)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Hyper-V-VMMS" Guid="{6066f867-7ca1-4418-85fd-36e3f9c0600c}" />
    <EventID>19070</EventID>
    <Version>0</Version>
    <Level>4</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2010-01-23T21:42:36.345Z" />
    <EventRecordID>2770</EventRecordID>
    <Correlation />
    <Execution ProcessID="4780" ThreadID="6292" />
    <Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel>
    <Computer>corp.xxxxxx.com</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <UserData>
    <VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events">
      <VmName>MAIL</VmName>
      <VmId>2B59FB3C-4E98-4828-B0B7-91854EDC51AF</VmId>
    </VmlEventLog>
  </UserData>
</Event>

Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin Source: Microsoft-Windows-Hyper-V-VMMS Date: 14/07/14 01:47:33 Event ID: 19100 Task Category: None Level: Error Keywords: User: SYSTEM Computer: XXXXXX

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I am having the same problem with our VM, we created snapshots into our VM server and deleted it but the process that we did was wrong, we deleted the snapshots inside the Hyper-V starting from the old snapshots to the latest snapshots and when i powered off the VM it is giving me the error 19070 ['VM name' background disk merge failed to complete. General access denied error (0x80070005)]. Now we are having a problem as we did the snapshots to our production server and I am worried on the Hard disk space. please anyone out there who can help me delete my .avhd file.

HyperV Replication Failing on one guest only how to diagnose

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Hi

Thanks in advance for reading as this problem has me stumped.

I've got 2 x HyperV Host servers running 2012\R2 fully patched with local SAS R10 storage via a LSI SAS card.  One is the host for three guest servers (1 x 2012/R2, 1 x 2008/R2 with SQL and a 2003) and the other is used just for replication plus a domain controller guest.  Everything has been working fine since Feb 14 until last week when I had to shutdown both servers.  Since restarting the 2012 guest replication is working fine with a status of Normal but the 2008/R2 and 2003 guest machines both won't replicate with the status turning to critical almost immediately replication is started.  So far I've tried:

  • Deleting and recreating the replica servers
  • Updating integration services on the guests
  • Full Windows Update on hosts and guests
  • Checking for VSS errors on hosts and guests - there are none
  • Checked all event logs - can't find any sign of an error with a problem

None of this has plus numerous reboots has made any difference unfortunately.  As replication is working OK for one server (which is the biggest) then I'm pretty confident my hardware, switches and network are OK and all the diagnostics I've run also come back with no problems.  Plus, until the power down, all was working fine and it hadn't ever gone off-line for any guests.

So far I can't even figure out what might be causing this as I can't see anything in the event logs or find a way of running a diagnostic status report which might show what's causing the problem.  Can anyone point me in the right direction please?

Many thanks in advance

Andy Truelove


Andy Truelove Tate Computer Technology Ltd

Terrible disk performance inside VM

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I am running Windows Server 2012 R2 with a VM running in Hyper-V. Prior to this host being 2012 R2, it was 2008 R2 but this problem existed then, too. I wiped 08 R2 and installed 2012 R2.

We have awful performance from within the virtual machine in Hyper-V.

Below are two screenshots that demonstrates what performance monitor displays from within the VM.

It will write, it will stop, it will resume.

Its VHD files are stored on a ReadyNAS 4220X connected by iSCSI. We are unable to upgrade to VHDX because it is one half of a DAG and you cannot have mixed VHD/VHDX. There is another VM still powered off that has the same problem and it has been converted to VHDX.

I have tried a number of different configurations:

Multiple NICs connected with MCS to bonded NICs (LACP) on the ReadyNAS. (192.168.13.x)
Standalone NIC connected to bonded NICs on the ReadyNAS. (192.168.13.X)
Standalone NIC connected to the same bonded ReadyNAS NICs. (10.1.1.X)
Standalone NIC connected to the standalone NIC on the ReadyNAS. (10.1.1.X)

The 192.168.13.X network is dedicated to iSCSI traffic and the 10.1.1.X is our production LAN through a different physical switch, just to illustrate that I have attempted different ways of pinning down the problem.

If I copy directly to the iSCSI target from the host machine, transfer is normal. If I copy from another machine on the network from within the problem VM, the transfer itself is fast but when it goes to write to the drive, we will see the terrible performance issue. 

The RAID volume on the ReadyNAS is completely dedicated to this VM at this point. There is nothing else running on it. I have disabled the checksumming on the volume that can sometimes cause issues and have disabled TCP offloading as suggested in all documents detailing fixes for poor iSCSI performance. The machine is fully patched and, as I said at the beginning, this issue existed in both Server 2008 R2 and Server 2012 R2. The host machine is a Dell PowerEdge R610.

Hyper-V! failed to create external configuration store : General access denied error. (ox80070005)

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MS01 -> Win8 Management Station with RSAT installed

HV01 -> Win2012 Hyper-V 3

HV02 -> Win2012 Hyper-V 3

FS01 – Win2012 File Server

 

All 4 Machines are member of the same Domain with a single DC.

FS01 has share VMs with Full Controll for the HV01,HV02 Computer accounts and the Domain admin groups which contains the User I use to login to whatever machine.

All 4 computers are configured for “Trust this computer for delegation to any service (Kerberos only)”. I will configure constrained delegation as soon as it works.

I start Hyper-V Manager at the MS01 and create a new VM “Test1” with “Store the virtual machine in a different location” and enter the UNC path of the share (\\FS01\VMs). VHD path is\\lg2-w2012-fs01\vms\Test1\Virtual Hard Disks\

I get the error message: User ‘xxxx\Admin1’ failed to create external configuration store at ‘\\fs01\vms\Test1’: General access denied error. (ox80070005)

 

I rechecked share permissions multiple times and everything looks good. But when I try to check the “Effective Access” in “Advanced security settings” it shows it for the “Domain Admins” but if I choose Device: HV01 it doesn’t offer the “View effective access” button.

I opened Powershell on the MS01 and run a "New-VHD -ComputerName HV01 -Path "\\fs01\VMs" ..." to create a new VHDX file on the share with the same error message as before.

Then I did a remote Powershell session on the HV01 and run the same command there with success. It seems to be that there is a rights or delegation problem when doing it from the Win8 Management station.

Any help is highly appriciated

Paul

 



How to acheive euivalent VMWARE's thin/fast clone in Hyper-V?

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Hi buddy's,

    Right now I am doing some invetsigation on how to  acheive euivalent VMWARE's thin/fast clone in Hyper-V?

    There is some concept of differential disk in Hyper-V , using which we can create a virtual machine which whill be pointing to some base image.

But once I poweron that base image VM , then no more I can boot my VM with differential disk because I will end with some error "The chian of virtual disks is corrupted. There is mismatch between identifiers of parent vhd and differential vhd"

  Guys , I am expecting some help here . Either help me to get rid of this error or tell me if some other way to acheive my functionality.

Thanks in advance,

Rakesh

Hyper-V 2012 R2 QoS for a specific set of VMs?

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I'm trying to figure out how to setup SCVMM 2012 R2 with a Logical Switch to support QoS for a specific set up VMs. Specifically, I have a subnet that will have a variety of VMs running, but within that subnet I have a handful of VMs that need a unique software QoS setting. Is this possible?

Blog: www.derekseaman.com, VMware vExpert 2012/2013


Bug in Hyper-V: Network Bridge's ARP proxying broken in certain scenarios

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Edit

I am quite sure now this is a bug. The ARP proxying does not work for VMs if the packet-recipient is not directly attached to the external vswitch that is bridged to the wifi-nic!

/Edit

I am running a test lab on my Windows 8.1 using Hyper-V.

My problem is, that the virtual LAN has limited connectivity, when the external vSwitch is configured to use the wifi interface, instead of the cable interface. I am troubleshooting this issue for hours now and I reached the point where I believe the Network Bridge, that is created by the Hyper-V Virtual Switch Manager, is not forwarding packets.

Pings are delivered from 192.168.178.2 to 192.168.178.1 and back again.

Pings from 192.168.0.10 are delivered to 192.168.178.1, and the reply does reach the wifi interface …

== Trace on the WiFi interface ==
Here you see a log of the trace on the WiFi interface of the Hyper-V-Host,
while 192.168.0.10 is pinging 192.168.178.1

No Time Source Destination HW Source HW Destination Protocol Info 3 0.003340000 192.168.0.10 192.168.178.1 24:65:11:cc:c0:9e 24:65:11:2b:35:e4 ICMP Echo (ping) request id=0x0001, seq=44/11264, ttl=127 (reply in 4) 4 0.006094000 192.168.178.1 192.168.0.10 24:65:11:2b:35:e4 24:65:11:cc:c0:9e ICMP Echo (ping) reply id=0x0001, seq=44/11264, ttl=64 (request in 3) 5 0.006152000 192.168.178.1 192.168.0.10 24:65:11:cc:c0:9e 24:65:11:2b:35:e4 ICMP Echo (ping) reply id=0x0001, seq=44/11264, ttl=64

… but is never forwarded to the Network Bridge interface.

== Trace on the Network Bridge interface ==
Here you see a log of the trace on the Network Bridge interface of the Hyper-V-Host,
while the Hyper-V-Host is pinging 192.168.178.1 (#1)
and the 192.168.178.2 is pinging 192.168.178.1 (#7)
-> Note: The ping-reply from 192.168.178.1 to 192.168.0.10 is missing!

1 0.000000000 192.168.178.1 192.168.178.21 24:65:11:2b:35:e4 24:65:11:cc:c0:9e ICMP Echo (ping) reply id=0x0001, seq=9/2304, ttl=64 7 7.852500000 192.168.178.1 192.168.178.2 24:65:11:2b:35:e4 00:15:5d:b2:21:18 ICMP Echo (ping) reply id=0x0001, seq=439/46849, ttl

How do I solve this problem?








Routing and Remote Access + Hyper V

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Hi Everyone,

I have a setup where i need three VM's running on a server 2012 r2 host.

One of the VM's i would like to be isolated from the rest of the network, but still have access to the internet.

For this virtual machine i have created an internal virtual switch and used Routing and Remote access to NAT the "public" and "private" NIC's

NIC Details below

"Public"
IP: 192.168.10.11
Netmask: 255.55.55.0
Default Gateway: 192.168.10.254
DNS: 192.168.10.254

"Private" (internal VM switch)

IP: 192.168.1.1
Netmask: 255.255.255.0

I have installed RRAS and used the below text as a guideline. Select LAN Routing and NAT and click Finish. Click on Start Service when prompted. This will configure the RRAS server and start the RRAS service. Notice that RRAS server will have a green up arrow denoting that server is enabled and configured.

9. Expand IPv4, Select NAT, make a right click on it and select New Interface. Select Public and click OK.



10. You will be prompted to Select Interface type. Select Public Interface connected to Internet and Select Enable NAT on this Interface. Click OK.

From the Islocated VM, i can access 192.168.0.1 fine and browse to the server UNC path, i also cannot ping any toher VM.

BUT, i have no internet access.

My guess is RRAS is not routing the HTTP traffic correctly (this is also ticked in RRAS) but i ran out of ideas.

Any help would be magic!

Shared Virtual Disks forcing RedirectedIO to the CSV disk owner

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Afternoon Chaps,

I have a problem with my physical Server 2012 R2 2node HyperV Cluster. I have created a VM guest cluster using shared .VHDX files that reside on the physical cluster's CSV files.

Everything is working fine, everything is online and fails over when needed as expected. However once I started performance testing I realised that unless the Guest Cluster Node VM was running on the same physical hardware node that owned the CSV its shared VHDX resides on - any IO to that shared VHDX sends it via redirected-IO across the ClusterNetwork (lowest metric network) to whichever physical hardware node owns the CSV, then that node sends the IO to the SAN using direct-IO.

If the Guest Cluster Node VM *is* running on the same physical hardware node that owns the CSV the shared VHDX resides on - then the IO is sent normally using Direct-IO.

The issue is that the difference between my DirectIO (12GB SAS) and redirected IO (1GB Network) is crippling my performance. Has anyone else seen this? I can't find *anything* in any articles or TechNet suggesting this is expected behaviour and I really need to resolve it :(

NOTE - If anyone can test this on their own cluster/lab - you can spin up a test VM (Server 2012 or 2012R2) with two additional SCSI disks, mark one of them as a shared VHDX (you don't need to build a guest cluster, just ticking the box has the same effect) and then test by copying a large file onto each (one drive at a time) monitoring the copy speed and your physical cluster's ClusterLAN/LiveMigrationLAN (whichever is set to handle CSV redirected IO traffic) to see the traffic go over the network. If it matches what I am seeing then the normal SCSI .VHDX will send it via DirectIO regardless of what physical hardware node owns the CSV, while the Shared SCSI .VHDX will use RedirectedIO if the CSV owner is not the same hardware node that is running the VM.

There is no indication in the UI that this is happening and no information/warning/errors are logged. On top of that it does not even show the physical cluster's CSV in redirected mode - it is redirecting at a file level on the CSV (the shared .VHDX)

If anyone has any thoughts on how to correct this - it would be much appreciated as I really need to resolve this asap :)

Regards

Joe


Poor IO on fixed VHDX disks 2012 R2

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I have a 7 node 2012 R2 Hyper-V cluster (failover cluster) with SCVMM.  The backend storage is a Netapp 2040-2, cluster-mode, and I'm using SMB 3.0 for my storage protocol.  The hosts each have 4 1Gb bonded NICs using LACP and TransportPorts.

When I first setup the cluster, I did some testing from the guests and found that I could write to the storage at or near the speed of the network, 4Gb/s (512MB/s).  This last week, applications started performing slowly and I found that I could now write to the storage at only about 30MB/s.

I checked the storage, network, found no problems or bottlenecks.

Finally, I created a VM directly on the hyper-v host which is has not been added as a resource to the failover cluster and was not created via SCVMM.  This VM can write to the same storage (same volume, share, spindles, etc) at almost 4Gb/s.  I can test simultaneously with any VM on any one of my 7 hyper-v hosts and it continues to have excellent IO performance and the VMs inside the cluster continue to have poor IO performance.

I have run packet traces to try to determine if anything could be wrong with the conversation between hyper-v and the storage, but found no issues.


Permissions issue moving VM to other drive

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Hi

I'm running a single installation of hyper-v on a WS 2012 machine. It's not domain-joined and I'm logged in as the local admin account.

I'm attempting to do a move of my VM's vhdx file in hyper-v manager. I've only got local drives and I'm moving it from my SSD (C:) to my HDD (D:).

The steps I'm doing is in short: Move->Move vm storage -> Move only vm hard disk etc. The VM is actually powered off, but I've tried on powered on ones to. I know that live migration between hyper-v hosts requires a domain, but that's not of any interest until (if) I gets another server.

Event viewer is able to tell me this:
Storage migration for virtual machine '<name>' (DDC5063D-533C-4A35-8045-6CDE64EC4E17) failed with error 'General access denied error' (0x80070005).

Migration did not succeed. User does not have enough rights for 'C:\Virtualisering3\hyperv'.

Hyper-V - What is the correct VMQ Adapter Setting

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Hello all, I'm setting up three Win2012R2 servers as a three node hyper-v cluster. I'm using converged networking and am using 4 nics; 2 nics will be for an infrastructure nic team that supports Management, Cluster, Live Migration, and the guest OSes. The other 2 nics will be used for a storage connection. After the 2 infrastructure nics are teamed, I want to set up the correct vmq settings on each of the two network adapters based on the processors that are in the server.   I have two 6-core processors in each server giving 24 logical processors. To prevent overlap in the processors that the vmq's will use, is this the best configuration?

set-netadaptervmq NIC1 -baseprocessornumber 2 -maxprocessors 6

set-netadaptervmq NIC2 - baseprocessornumber 14 -maxprocessors 6

Any feedback appreciated. Thanks.

[Error] Using Hyper-V Manager with an simple user

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Hi Guys!

Im having some trouble to give permission to an non-administrator user to use theHyper-V Manager. I will explain my enviroment so you can have a better look to help me out to solve this.

Have one Windows Server 2008 R2 ENT SP1 with Hyper-V role installed, in a domain enviroment, and a few VMs created and working. If I connect to the server via RDP with an administrator I have no problem using Hyper-V Manager but if a connect with a non-administrative user I get the old "You do not have the required permission to complete this task. contact the administrator of the authorization policiy for the computer 'localhost'".

I create a Role Assignment with the Read Service Configurationoperation and assign it to the user. I also put this user into the Administrator Role Assignment to discard that I need an extra operation to user de Hyper-V Manager.

Im still getting the error, does anyone have a clue on what Im doing wrong?

 

Thanks in advance!

 

 


Very Slow login to a VM DC

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Hi there, 

We have a DC for a second domain running as a VM. Recently the time to login has been taking very long. What could cause this? How can i resolve it?

The host server is running Server 2008 R2. This problem just started happening a few weeks ago. 

EDIT: It also takes a long time to login with remote desktop. It takes about 5 minutes for the prompt for the login info to even come up. This is the only server that this is happening to.

Creating checkpoint causes VM to restart

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Just wondering if anyones experienced this?

I have a customer with a 4 Node 2012R2 Hyper-V Cluster.

Sometimes performing a checkpoint will cause a VM to reboot. It's happened to both VM's running windows 2008R2 and 2012R2 with latest versions of integration tools installed.

Anyone ever seen this behaviour?

Thanks

Gil


Gil Gross | Technical Lead | G-Net Network Solutions | www.g-net.co.il | plz visit my blog - gilgrossblog.wordpress.com

Windows 8.1 Hyper-V - Error while configuring the hard disk 0xC03A0014

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Hello. I have just enabled Hyper-V on my Windows 8.1 laptop.
Dell Latitude E7440 i7-4600U @ 2.10GHz
I can create a Virtual-Switch but I am unable to create a new Hard Disk or Virtual Machine within Hyper-V. I get the same error for both processes.

Error: The Virtual Machine Management Service encountered an error while configuring the hard disk on virtual machine New Virtual Machine.
Failed to create the virtual hard disk.
The system failed to create C:\Users\user\Documents\Test\New.vhdx .
Failed to create the virtual hard disk
The system failed to create C:\Users\user\Documents\Test\New.vhdx . A Virtual disk support provider for the specified file was not found. (0xC03A0014).
I have ran all Dell Client System updates and all of windows updates.
I have attempted to create a virtual machine on the current SSD and also an external drive. The same error appears.
I have also attempted to create a virtual hard disk via Hyper-v with a Base vhdx, still the same error occurs. I've tested the base image on other laptops of the same model and windows 8.1 without issue.
Any thoughts on how I can fix this?

Thank you,

-Jake

Hyper-V 2012 R2 Gen 2 VM failed to boot from SCSI DVD drive using ISO image file

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Hello:

I'm having a problem trying to install Windows 8.1 Professional on a new Gen 2 VM. I created a new Gen 2 VM using Hyper-V Manager running on Windows Server 2012 R2 and then told it to boot off DVD drive which pionts to the ISO file that I copied to the E: drive.  The ISO file mounted in the virtual DVD drive is the Windows 8.1 Professional x64 VL ISO that I downloaded off of TechNet. When I start up the VM to install the OS, I receive this error:

"Synthetic SCSI Controller (Instance ID 7512B228-F7BC-4DD8-B4F4-72A5B042C2E9): Failed to Power on with Error 'The file or directory is corrupted and unreadable.' (0x80070570). (Virtual machine ID 4195A398-3531-4A34-8588-D1FC3F3DD2D4)"

Basically the SCSI controller can't read the ISO file. However, the IDE controller on a Gen1 VM can read and boot from the ISO just fine. Has anyone else run into this problem? Is there a way to resolve this issue and allow me to boot the ISO from a SCSI controller?

Or is there a bug with the Hyper-V SCSI controller that makes it unable to boot from ISOs properly?


-JP

Can't resolve a hostname on a server despite records in place?

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Hi All,

I have a single Hyper-V server. From a VM, if I do nslookup (ip or hostname), I get request timed out and not the hostname to the ip or vice versa?

A records exist in both reverse and forward zones. What is missing?

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