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

VMConnect not available on 2012 Server core

0
0

I have just gone down from 'Minimal Server Interface' to 'Server-Core'.  Problem is I can no-longer run vmconnect to connect to a VM.  Is this by design, do I need to go back to Minimal Server Interface before I can connect to a VM from this Server or have I done something else wrong which is stopping vmconnect from working?

Thanks


newly added host Server2012 faulty presentation in SCVMM2008, but properly presented in Hyper-V manager

Merging VHDs of "secondary" hard drives

0
0

I have a VM running DPM which has 4 drives attached. Drive 1 is the C: drive and contains the OS. This drive is fine and I don't need to do anything with it.

The other 3 drives are attached as virtual SCSI drives and all have .avhd files which I would like to merge back into their respective .vhd drives.

E.g. I have drive2.vhd and drive2.avhd and I would like to merge drive2.avhd back into drive2.vhd

All the instructions I can find on the web seem to refer only to merging the C: drive and they all contain instructions to do things like create a new VM after the merge and attach the merged drive to the new VM.

As I am only merging secondary drives do I have to go through all this? I'd just like to merge drive2.avhd into drive2.vhd and have the merged drive2 attached to its original VM.

Is is as simple as detaching drive2 using hyper-v manager, merging the .avhd into the .vhd and then reattaching the mergeddrive2 to the VM?

Many thanks

Hyper-V on iSCSI boot - not booting once LAN is configured

0
0

I am having an issue with Hyper-V once I install NIC drivers.

Scenario:

I have 2 x Servers that are configured to boot via iSCSI from a NAS. The hyper-v install is grabbing the iSCSI boot information i assume via iBFT from the NIC as it is not a HBA iSCSI.

The installation goes off without a hitch, it see's the iSCSI disk and installs. When I boot the Hyper-V install there is only 1 NIC, the card that runs iSCSI (I thought that because it is using this for booting it may hide it like XenServer does), so I run the installation for the NIC drivers (All Intel adapters) which install the other NICs. Everything will work, i can setup VMs etc; but once I reboot the server, on the next boot up it stays on the splash screen for a while (little balls going in a circle) then get's a BSOD with something referring to the boot volume. I can press f8 and boot last known config and the server boots, but alas i assume this removes the driver because the other NICs aren't there.

The LAN and SAN are of course 2 different subnets.

Any advice on what i can try from here?

Repair corrupt VHD

0
0
I have a VHD that was damaged it appeby a RAID failure.  The RAID didn't fail the disk but it logged a "A block on the physical disk has been punctured by the controller" and "There was an unrecoverable disk media error during the rebuild or recovery operation" error last night.  The VHD now is showing as blank internally.  If I boot the VM with a 2008 R2 ISO and use recovery tools it shows the main partition as blank.  Also if I attempt to mount VHD via disk manager it prompts me to format disk.  I am moving the VHD to another disk, but is there any chance of recovery or is the VHD too damaged?

Hyper-V Problems Installing a VM. RDP Error?

0
0

I'm new to Hyper-V, but not virtualisation and I'm tasked with setting up a virtual application server under Hyper-V.

All seems pretty straight forward, set up VM, pointed at an ISO to install 2008 R2 server and powered it up. I can see the server booting in the preview window so I double click on the preview to try to connect so I can run through its installation;

Remote Desktop Connection;

An authentication error has occurred (Code: 0x507)

Remote Computer: <fqdn of host server>

OK, what does the event log say;

Event ID: 12480 '<virtual machine>' failure in machine remoting system. Error: 'The client and server cannot communicate, because they do not possess a common algorithm.' (0x80090331). (Virtual machine<VM MAC>)

So this seems to be an issue with RDP not communicating with Hyper-V, even though the VM isn't installed yet?

Any suggestions/ ideas on how to progress?

Any limit on snapshot .avhd size?

0
0

I don't want to delete snapshot shutdown server to do merge, because I can't estimate the down time for this action.

Any risk I will face?

AVHD Size limit 2TB?

Is it safe to keep avhd size growth without merge?

Thanks

iSCSI Target Storage (VDS/VSS) Provider for Hyper-V

0
0

I'm looking for a way to install the iscsi target storage provider for Hyper-V 3/2012. I can't seem to add as a feature and it is not installed by default.

http://blogs.technet.com/b/filecab/archive/2012/10/08/iscsi-target-storage-vds-vss-provider.aspx


help with lab

0
0
 

Hi guys,

I have a bit of a difficulty trying to set up a hyper v lab. Here's my setup:

I have a test machine in a corporate network. I need to find some way to install ad on my test machine along with dns and host a domain that can be resolved from the internet. The problem is that I cant smply install it on the phisycal machine so I thought about creating some vms with hyper v. My server is 2008 r2.

My idea is to create a virtual network where I can set up vms and create a domain controller, dns and so on. I am thinking of using my physical machine as a nat server so all traffic is routed through it. In short, I need a network inside my computer that can run fine and have internet connection (I might need to install exchange on it). But I do not want it to ruin anything on the corporate network on which my physical machine is. So only the virtual machines that I have can use my physical machine as nat, I don't want any other network traffic to be routed through it.

I have tried this in the past with other virtualization software but I have no experience with Hyperv and cant really seem to find  a guide for this online.

Do you guys have any ideeas? Perhaps I did not think this correctly? Again, it is crucial not to disturb the corporate network on which my machine is, but I need to host a domain which can be resolved from the internet.

Thank you!

High CPU in VM when coping files from/to share

0
0
Hello we recently bought 2 new servers. We installed windows server 2012 Datacenter and on it there are VMs with all kinds of windows versions. when you copy a file from a share doesnt matter if the file is on the host or not the CPU goes to 100%. BTW there is only 1 CPU in the VMs. Integration services are installed on all the servers. Is this normal ?

Is there a way to manage hyper-v hosts from Linux machines ?

0
0
I am looking from something similar to Vmware vicfg-hostops and vmrun cmd that I can use from Linux machines.


Can't create Virtual Machine on Server 2012 as Domain Admin. Error 0x80070005 General Access Denied.

0
0

This one is really stumping me.  Standalone Server 2012, no clustering.  I can create a VM on the C: drive, but not on E:

I can manually create a file in E:\Hyper-V\Virtual Machine Configurations\ folder.  Logged in as a domain admin.

Checked permissions on C: and E: folders.  Added full rights for the SYSTEM account.  Still same error.

Microsoft-Windows-Hyper-V-VMMS is logging as as Local System account.

Any ideas?

The server encountered an error while creating New Virtual Machine.

The operation failed.

Failed to create external configuration store at "E:\Hyper-V\Virtual Machine Configurations\": General access denied error. (0x80070005)

User "<DOMAIN>\<user>" failed to create external configuration store at 'E:\Hyper-V\Virtual Machine Configurations\': General access denied error. (0x80070005)

-System
-Provider
[ Name] Microsoft-Windows-Hyper-V-VMMS
[ Guid] {6066F867-7CA1-4418-85FD-36E3F9C0600C}
EventID13000
Version0
Level2
Task0
Opcode0
Keywords0x4000000000000000
-TimeCreated
[ SystemTime] 2013-01-18T20:47:52.455336800Z
EventRecordID610
Correlation
-Execution
[ ProcessID] 5216
[ ThreadID] 5316
ChannelMicrosoft-Windows-Hyper-V-VMMS-Admin
Computer<Computer name>
-Security
[ UserID] S-1-5-18
-UserData
-VmlEventLog
ErrorMessage%%2147942405
ErrorCode0x80070005
Parameter0<DOMAIN>\<user>
Parameter1E:\Hyper-V\Virtual Machine Configurations\

recommended to virtualize

0
0

Hi all,

We have one Windows 2003 file server with all shares and users' home folders which has over 600 users to access.  Is it OK or recommended to virtualize this file server on the hyper-v host?

Thank you.


Restore a Hyper-V from VHD

0
0

Hi,

I have taken backup of my VHD using Volume shadow copy (VSS - vshadow.exe). Now i want to restore the vhd to a new or existing machine. What im currently doing now is attaching the backped up VHD to a new new machine or change the vhd to exiting machine. Is this the standard procedure of restoring the a hyper-v from vhd? OR is there something better and different way of doing it. 

System config:

Host (Hyper-V manager): Windows 2008 R2 Standard

Guest (VM): Windows 2008 R2 Standard.

WIN 2012 Hyper-V VDI

0
0

Hello

I'm traying to test VDI with windows server 2012. Installed all roles, created virtual machine (win 7), created collections with personal desktop.. assigned user. Everything looks fine, but when i'm traying to remotely connect from local network to virtual machine it show's "Loading the virtual machine" ant nothing else happening(i can't see screen). If remote virtual machine will be shut downed it will wake up and boot when i will tray to connect.<o:p></o:p>

Maybe somebody know what i'm missing ?



expanded the size of a VHD - didnt realize it had a snapshot - do not have a backup of the original vhd

0
0
Our exchange 2007 server runs in a VM.  It ran out of space today, so I shut it down, enlarged the disk and then attempted to reboot it.  It would not reboot.  Of course this is when I discovered that for some reason, somebody had done a snapshot back on 9/2.  I just called the outsourced IT group that manages our backups and it turns out that they have not been backing up the mail server, so I do NOT HAVE THE ORIGINAL VHD anywhere.

I'm sick to my stomach because everything I've read over the past several hours basically says there is no way to recover from this error without a copy of the original VHD.

Moving from IPv4 Class C to Class B in a virtual infrastructure

0
0

Hi

we planning to change our network IP class form C to B because of the 255 IP addresses already have been used and we need more.

we are using Hyper-V infrastructure having more than 10 server in 3 physical server and another more 10 physical server working independent in other functions 

so i am little confused about the 3 Hyper-v servers and there IP configurations, every server having 4 physical NIC:

-Lan NIC (lan IP) - Class C

-DMZ NIC - Class C

-Live Migration NIC - Class C

-Heart Beat NIC  - Class C

all NIC's connected to Cisco switch for VLan purposes 

so what is best recommendations for this case, and sure i will change Lan NIC IP Address so DO I HAVE TO change the other NIC's IP classes ? 

Slow network on VMs

0
0

I've an hyper-v 2012 on a Dell R320. It uses two broadcom nics defined using Win2012 team feature, and has 2 VMs activated (one W2012, one CentOs 6.3 with integration 3.4).

If I transfer files using the parent partition, I've very high throughput. If I transfer file from same source using the VM, I've about 10Mbs throughput.

I've tried to disable tcp checksum and receve side scaling on physical nics.

Any idea?

thanks

clustered server 2008R2 enterprise running hyper-v upgrade to datacenter

0
0

Hi,

We have two dell clustered servers, running hyper-v (only) role on windows server 2008R2 enterprise version together with shared storage. we want to upgrade enterprise to datacenter in order to run more VMs. 

is it possible to upgrade both servers to datacenter so that i won't loose any settings ? or vms? and how it can be done ?

thanks 

Activation/licensing question(s) : Activating VM w/ Datacenter product key on Hyper-V Server hypervisor

0
0

It seems that I got more or less 10 activations on a DataCenter Product key when activating VMs on a single server.  Not quite what I had been reading :-)

I have 3 single CPU socket (quad core) processor servers, each with 16GB RAM.  Hyper-V Server 2012 (the free download one) is installed as each server's hypervisor.  I find that the hyper-v installer is much easier to deal with to create a VM server than the full install.

I assign one DataCenter license to each server, 3 in all.  All VMs created on each server are activated using its assigned DataCenter product key. 

When I try to activate additional VMs on that physical machine running Hyper-V server, I get error 0xC004C008 "The activation server determined that the specified product key could not be used".


1) Is it correct that a DataCenter product key can be used on a single Hyper-V server to activate many Virtual Machines on that server?  I have read that from a licensing perspective, DataCenter can have up to 1024 VMs on a single Hyper-V server.
2) I am guessing that in the normal course of development/test, I activated this key probably 10-12 times, once for each VM on that server.  This seems to be much lower than what I think is allowed.  Why did I run out of activations for that DataCenter product key?
3)  Am I supposed to install the full Server 2012 product as the hypervisor instead of the freely downloadable Hyper-V Server?  Is that why I only got 10 activations for VMs?
    - I really like the low impact, already configured server core like install of the Hyper-V Server installer, and dont really want to deal with the full Datacenter install if at all possible.

I should add that the key is from our Bizspark/MSDN account, but I'm thinking that shouldn't matter?

Any help greatly appreciated,

Joe

Viewing all 19461 articles
Browse latest View live


Latest Images