Quantcast
Channel: Hyper-V forum
Viewing all 19461 articles
Browse latest View live

View migration logs

0
0

Hi,

is it possible to find the logs for Live & Quick migration that would show the actual login for instance: migration start time, finish time, bandwidth consumption, etc?

I am using Windows Server 2012 R2 and Windows Failover Clustering for the migration.

Thanks!


Live Migration failing between nodes on 2012 R2 cluster (0x8007274C)

0
0

Hi All,

I've got a 3 node Hyper V cluster running Server 2012 R2 and live migration is failing between 2 of the nodes. Live migrations work back and forth from node 2 to all other nodes fine. Live migrations from node 3 work to all other nodes, Node 1 can live migrate to node 2 but fails when migrating to node 3 and gets the following error:

Log Name: System

Event ID: 21502

Live migration of 'Virtual Machine XXXX' failed.

Virtual machine migration operation for 'XXXX' failed at migration source 'Node 1'.

The Virtual Machine Management Service failed to establish a connection for a Virtual Machine migration with host 'Node 3': A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (0x8007274C).

The Virtual Machine Management Service failed to authenticate the connection for a Virtual Machine migration at the source host: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (0x8007274C).

Failed to send data for a Virtual Machine migration: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (0x8007274C).

Looking around at other support articles on this it looks like this error code (0x8007274C) points to Virtual Machine Manager Service not listening on port 6600 but have confirmed it is listening on all nodes running netstat -ano | findstr 6600 and live migration does work on all nodes (just not one way between these two). Quick migration works fine from Node 1 to Node 3.

All Nodes are running the exact same hardware with the following nic configuration:

Broadcom BCM57800 NetXtreme 11 10 GigE cards.
Dual 10gbe ports teamed (traffic untagged at switch)
2 vEthernet adapters configured on teamed nic, one for management and one solely for migrations, each on different subnets.

Obviously this a tricky one to troubleshoot but if someone can give me any tips or tools I can use to further troubleshoot this it would be appreciated.

Cheers

Hyper-V Serve 2008 R2 on Hyper-V 2012 R2 Host?

0
0

Hi all,

It is able to run a Hyper-V 2008 R2 as a VM Guest on the Hyper-V 2012 R2 Server?

Please Kindly Advise. Thanks

I can't install Intel Hardware Accelerated Execution on Hayper-V Win 7 virtual machine

0
0

Hi all,

I have a server with Win 2012 installed. I create a virtual machine using Hyper-V manager and installed win 7 to install Android Studio. When I tried to run a test program in android studio, it said that virtualization is not supported by the CPU. I searched in forums and found that I have to enable virtualization in BIOS and install INTEL Hardware Accelerated Execution to make it work. I didn't see the BIOS of the Hyper-V virtual machine but I explore the settings and didn't found any thing that I can set to enable VT-x (I know that VM ware has).

When I tried to install INTEL Hardware Accelerated Execution Manager, it says that the CPU does not support VT-x.

Is anyone can help me with how to install it to make android studio emulator working?

Sorry if my English is poor

Thanks in advance

USB Device appears as RAW in Hyper-V Core

0
0

I have a HP server with Hyper-V Core hosting a Server 2012R2 VM as well as a couple of smaller Linux VM's.

I've plugged in a 6TB USB disk, which I formatted as NTFS with my Win 7 laptop, to use for backup. The disk shows up in the HV Host as Raw. I was going to set it off line in the HV Host and pass it through and mount it on the Svr 2012 guest.

Why doesn't the HV host see it as formatted? Is it too big? Does it not like the USB caddy? I would have expected the HV Host to mount it as drive D. Should I reformat the disk using a Win 8 or 10 machine?

Any suggestions...

Thanks in advance

Ken



iSCSI - The GUID passed was not recognized as valid by a WMI data provider

0
0

Hi,

I recently added a third host to a hyper-v cluster. It is running different hardware. Now, on one of the older hosts, when I open the iscsi control panel, I show the connections as inactive even though the host is connected to the SAN, the VM on the host works fine and failover cluster manager reports the storage pool and disk to be on said host.

However, when I try to modify / add sessions / reconnect / add volums, I get the error "The GUID passed was not recognized as valid by a WMI data provider". Rebooting the hosts did not help as the issue appeared again.

Any idea how to troubleshoot that issue ? Where it comes from ?

Also, failover cluster manager and hyper-v are freaky slow to get settings, start/stop VMs, migrate between hosts, ...

Thanks for any insight you can provide,

Olivier

Multiple Logon Failure Event ID 4625 on Hyper-V Host

0
0

Hi,

Here's my setup

1 x Windows Server 2008 R2 Enterprise SP1 with the Hyper-V server Role installed. This is in a workgroup.

3 x Windows Server 2008 R2 Standard SP1 Guest VM's on the above host. These are all members of a domain.

The security log on the Hyper-V server is registering this failed logon event from all three of the servers every few minutes. See below for an example (Replacements are shown in square brackets):

"An account failed to log on.

Subject:
Security ID: NULL SID
Account Name: -
Account Domain:-
Logon ID: 0x0

Logon Type:3

Account For Which Logon Failed:
Security ID: NULL SID
Account Name: <COMPUTER_NAME>$
Account Domain:<DOMAIN_NAME>

Failure Information:
Failure Reason:Unknown user name or bad password.
Status: 0xc000006d
Sub Status: 0xc0000064

Process Information:
Caller Process ID:0x0
Caller Process Name:-

Network Information:
Workstation Name:<GUEST_VM_NAME>
Source Network Address:fe80::1c28:2c67:af3f:407c
Source Port: 52039

Detailed Authentication Information:
Logon Process:NtLmSsp 
Authentication Package:NTLM
Transited Services:-
Package Name (NTLM only):-
Key Length: 0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested."

I've tried running process monitor to see what network traffic is going from each guest to the host but the only traffic I can see is Link Local Name resolution traffic. Could this be the problem? If so, how do I stop these logon failures from occurring?

Thanks in advance

Greg

AVHD Keeps growing while VM is idle

0
0

I have an enviroment for automated testing where I configure 40 VMs (20 Windows 7, and 20 Windows Server 2008 R2) for testing. Each VM is cofigured to use a differentiating VHD out of an template VHD. After some basic configurations is made on the Differentiating VHD we snaphot de VM. This snapshot is the starting point for our tests.

We use the differentiating VHDs to save disk space ( we use around 1/3 of the normal amount we would use with dynamic VHDs). The snapshots are used to get to starting point for our automated tests. We want to Always start from the same point and we test our application several times a day.

Here is the issue:

I've noticed this week that after I revert the snapshots on the VMs, the System Process (PID 4) start having  lot of disk activity on the .AVHD files. In between 100-400 MB/s. It varies a lot. The AVHD. files on the Windows 7 VMs goes from around 500 MB after snapshot restore to 14 GB. This goes on for several munutes. After some time it stops.

The VM is idle and doing nothing. This disk activity is affecting a lot the install times of our application on the VMs. Normal install time is around 1 minute on SSDs, but due to this disk activity it's taking up to 16 minutes. Whe this thing stops, install times goes back to around 1 minute.

Physical server has 192 GB Memory, 2 SSDs in RAID 0 and dual 6c XEON E5-2632 v2 @ 3.5 GHz processors. It's running on Windows Server 2012 R2.

The issue beeing, why does PID 4 do so much activity and increase de AVHD file while the VM is doing nothing?


Hyper-V Replica or SAN Replication

0
0

Hello,

We are in the process of designing disaster recovery scenario. We have two Windows Server 2012 Hyper-V cluster with ~ 40-50 virtual servers.

We have 1 Gbit ethernt connection between clusters or FC.

The question is which technology to use Hyper-V Replica or SAN replication. What are the pros and cons of each one?

Thanks!

Trying to almost isolate a group of systems.

0
0

I am trying to isolate a handful of systems to only accessed with RDP that runs on a specific citrix server.

The goal is for user to log into citrix dbl-click on RDP icon and connect to older XP system do their work and print out to specific network printer. WIN2012r2 had 4 NIC's two for administration and backup and two that are teamed up and dedicated to the isolated systems. The pair of teamed dedicated NICs are connected to a switch are behind some ACL rules that only allow RDP port traffic and printer traffic.

Am I just overthinking this? There a easier/better way to achieve same results?

Making a Virtual Machine from a Windows 2008 Backup

0
0

I am attempting to create a Hyper-V virtual machine from a complete windows 2008 backup. The backup directory contains a series of xml and 2 VHD files.

The host is 2008 Server R2 Enterprise, and the guest(2008 R2 Standard) that I am trying to restore was backed up to an external USB drive. I have tried:

1. creating a new virtual machine and using the larger backed up existing VHD file. Fails when Virtual Machine tries to boot. (thought this was too easy to work) Missing it's boot partition I assume, the smaller drive.

2. creating a new virtual machine and booting with an R2 installation computer, repair, and then restore from a previous image. Since Hyper-V will not recognised attached USB drives I have put the backup files in a network location. I then select advanced, put the correct path in. I know the network path is accessible because I can map a drive to it, from the command prompt of the Windows restore. Enter the full username\password for the network location.  All that happens is the screen blinks and does not list the previous restore files.

I am tempted to try and restore to VMware, which can read an external USB drive, and then convert the VMware machine to a Hyper V virtual machine. Long way around?

Sureley it can't be this hard! I have searched externsively for a post that is trying to do the same. Is there something blindingly obvious I am missing?

 

 


X

Compact VHD/VHDX - Best methods

0
0

Dear Forum Members,

I would like to ask your opinion about the best way to compact a vhd/vhdx file. My problem is that the previous admin did not plan anything and gave 2TB of space to a VM, which unfortunately grew up to it, whoever it uses only 200-250GB of disk space (Windows Server 2012 R2 with 3rd party application). I have to compact the disk back to approx. 250GB, but I did this before with other VMs and it was always a headache: First I always shrink the volume inside the VM, but in spite that it tells me for example 300GB is shrinkable, if I select even 290GB it fails to error. I guess this is because some blocks used and not zeroed out.

My question would be that are there any supported methods to 100% shrink back these VHD/VHDX files? Now on another VM I used Auslogics Defrag Free and after I fully run it with optimization selected (no blocks remained at the end of the disk) I was able to shrink the volume inside. After the shrink it was possible to shut down the VM and select compact disk in order to get back to that size.

But I'm not sure about this is the best way to achieve that, so I would like to get help from you, maybe you were also suffering from this a lot of times.

Thanks for your answer and Best Regards!

Christian

hyper v speedtest lower than host

0
0

Hello, my host gives me 800Mbps download and upload

but on Hyper-v only get 250Mbps download and upload

can someone tell me how i can have the same speed as the host?

Hyper-V core 2012 R2 - Cluster

0
0

Hi

Is there any way to block the owning node of a Cluster disk or a CSV ? I don't mind the owner switching between some hosts but at the moment due to issues with a host I d like to remove that host from the list of potential owners. I just ended up with a cluster fuck and the prod DB going offline because that host ended up owning the node.

You can do it for storage pools, but I can't seem to find the option for the CSVs and Cluster Disk.

Thanks

Olivier

iSCSI split over 2 network cards - Hyper-V core 2012 R2

0
0

Hi,

We just added a new host to a hyper-v cluster. Communication between 2 hosts can saturate the iSCSI network adapter on the new host, which is normal as the iSCSI and communication between the hosts are on the same network (not enough adapters to split it on the old hosts). However the connection to the SAN which works fine on the other hosts (I can saturate the SAN ports) has abysmal speed on the new hosts.

The new hosts loads balance perfectly fine between all 4 ports assigned to iSCSI but barely gets over 75 Mbps / net adapter. I just disabled 2 ports out of the 4, and speed tripled to the SAN. At the moment, for redundancy, I have split the ports between the 2 network adapters. That way, if one adapter dies, I still have LAN and iSCSI.

Thus my question is, is it a bad idea to split iSCSI traffic over multiple adapters ?

The network cards on the new host are Broadcom. The old ones have Intel's.

Any ideas?

Regards,




live migration fails from one particular node to one other particular node

0
0

Hi

I have a 3 node Windows Server 2012 Hyper-V Cluster

Using CredSSP for live migration authentication.

For some reason LiveMigration of virtual machines won't work from one particular node to one other particaular node using a dedicated LiveMigration network. If I let the admin network be used for live migration it works

Eg. node

1->2 ok
2->1 ok
1->3 ok
3->1 ok
2->3 ok
3->2 fails

Eventlog Message:

The Virtual Machine Management Service failed to establish a connection for a Virtual Machine migration with host 'abc': A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (0x8007274C).

I have checked:

networking(using windows teaming), servers been rebooted, restarted vmms, run netstat to see that live migration network is listening on port 6600, checked binding order, run cluster validation, have recreated the virtual switch used on node 2...

Any other areas to have a look at?
Looks somewhat similar to:
https://social.technet.microsoft.com/Forums/en-US/9cc654a1-80d3-461d-ba79-920ccfd1bcd8/live-migration-failing-between-nodes-on-2012-r2-cluster-0x8007274c?forum=winserverhyperv


Windows Server 2008 Foundation Migrate to Hyper-V 2012

0
0

Hi All,

Please kindly advise for the license issues. Can I migrate Windows Server 2008 Foundation to Hyper-V 2012? Need purchase new Microsoft license? Can I use the Windows Server 2008 Foundation license key to activate in Hyper-V 2012.

Regards,

Weihong Poh

HyperV on SBS 2008 R2 - snapshot question

0
0

Hi All,

Hope you can help, run out of ideas on the below issue.

While RDP testing, Hyper V snapshot revert from 7/12/2015 back to 8/9/2015.

There was only a full VM backup done 17/12/2015.

Is there at all any possible way to recover work data (docx, etc) from the period before the revert was action-ed or is it hopeless????

I have tried opening any VHD/AVHD file that is present to no result, partition scan of the VHD/AVHD has been tried also.

Any ideas????

Thanks in advance.

Jimmy 

Virtual switch stops working after a reboot

0
0

I have 2 host servers running Server 2012 R2 and Hyper -V. Every time I reboot either host the virtual switch stops working. When I go to network connections it shows that all of the ports have a cable unplugged despite there being link lights on the switch. To resolve the issue I am having to delete the virtual switch and recreate it. I have check within services and everything seems to be running correctly. I need to ensure that the switch works correctly as soon as the hosts boot. Has anyone else experienced this?

Thanks

Connect Hyper-V Manager to Hyper-V Server free

0
0

Hello!

I want to connect from a Win 10 client via Hyper-V Manager to a Hyper-V free Server and i have some problems to get a connection.
The client is in a domain and the Server not.
If i try to connect to the Server i get the error message, that i have to check the management service, configuration or the Firewall settings.

The Firewall is disabled, the service running and in the configuration the remote management is active.

Where is my mistake?

Thank you in advance!

Viewing all 19461 articles
Browse latest View live




Latest Images