Which way offers better performance and design?
Attaching an additional iSCSI disk directly attached to the client VM (Windows)
or
Attaching the iSCSI disk to the host server, and adding as an additional disk in the VM config.
I can think of positive and negative benefits for both.
Thanks.
Hi,
I have standalone W12K hyper-v server running some (W8K R2) VM, also on my network I have a 10 node (W8K R2) hyper-v cluster. My question what is the best method to move some of the VMs from the standalone W12K box to the W8K R2 cluster.
All the VMs are VHD and VHDX files and other possible problem is that the W12K box has an AMD processor and the cluster nodes are using Intel.
My original plan was to copy the VHD to a USB disk and then copy to the cluster and setup via Fail Over Cluster Manager.
I am getting this error constantly on all of nodes:
Available processor sets of the underlying physical NICs belonging to the LBFO team NIC /DEVICE/{6F58A4CD-BBBB-4E4A-B7A2-122CDC06E7A2} (Friendly Name: Microsoft Network Adapter Multiplexor Driver #2) on switch 597752D5-FF11-4436-83B5-449630DF04E9 (Friendly Name: vSwitch) are not configured correctly. Reason: The processor sets overlap when LBFO is configured with sum-queue mode.
Is this anything serious? Any resolution to it?
Hello,
i installed on DELL R620 windows server 2012 STD and add the hyper-v role
when i created a virtual switch , the speed of network in the HOST( the server itself) is ver poor ( copy file from fileserver is 300Kbs)
when i remove the virtual switch , the speed of the network is better( copy file from fileserver is 10-20Mbps)
i spoke with DELL support center , and after check up , no problem has found.
i tried all the chnges with the offload checksum etc but nothing helped
Please your comment about this issue
Thanks
Dotan
Dear friends
I will like to deploy a number (10) of VMs.
I have successfully Sysprep the image and clone it.
Then by means of unattended.xml, I have been able to join it to the domain with the random name assigned.
Here is my problem:
For consistency, the "file name of the VM's are exactly the same": lets say, VM1, VM2, ...VM10. (The name in the AD is anything random as "Asd5678JK".
By means of a Registry look up I can see the assigned File_name and manually script a change_name script.
-------
1) The unattended.xml will not do the second order after the first reboot.
2) I can swap the orders so the name is change but the VM is not added to the domain.
3) IS there any way to do this by means of powershell or a different batch procedure.
Thanks
Hi
Hi
I would like to know if the following is possible with hyper-v 2012 r2 vreplica
Host 1 - running 4 vm's and replicated to host 2 (same site)
Host 2 - running 4 vm's and replicated to host 1 (same site)
Host 1 - carrying out native backups of vm's to a NAS (local site)
Host 2 - carrying out native backups of vm's to a NAS (local site)
then for host 1 and host 2 to have their vm's vreplicas extended to a DR site (different location)
Maybe the design above is simply too cumbersome and a hyper-v cluster locally would be a better option combined with vreplica from both hosts to a DR site (standalone server) - 50Mb link between locations
Thoughts appreciated.
Regards
Hi.
I have a Windows Server 2012 R2 Hyper-V with a VM guest Windows 2012 installed. Oracle is installed in that VM and when I'm trying to run a Hyper-V backup I get this Oracle VSS error:
VSS-00044: Database in NOARCHIVELOG mode must be in a consistent state for backup.
Cause : The database was open read/write or mounted after a SHUTDOWN IMMEDIATE or SHUTDOWN ABORT.
Action : Either mount the database in a consistent state or open it read-only to back up the database files.
Additional info :
Oracle Database 11g Release 11.2.0.4.0 - 64bit Production
Oracle VSS writer version 11.2.0.2.0 Production
Error at line : 4576
Failure on PrepareForBackup event
What is best practice and how do I configure this setup if I want to keep the Oracle VSS writers. Should I configure something in Oracle or on the Windows Servers.
Regards
MHem
PJ Moka
Dear All,
I have few Hyper-V VM's on my Laptop (OS windows 8) which were working fine for a very long time. Last March 2014 i saved all the VM's and since then I never started them.
During this time i ran couple of windows updates and restarted the machine. Last week i tried to start the saved VM's but they never get started. I don’t get any valuable or descriptive error except VM failed to starts the machine (Machine Id XXXXx). In the event log i see timeout period for the thread.
Thinking the saved state is corrupted, deleted the saved state and tried to start it again , but still same issue.
Later i uninstalled the Hyper-V, rebooted the laptop and installed it again following a reboot. Tried to create a VM which was successfully created but that too never starts.
Googled the issue to find if someone has similar issue but so far there is no luck and issue is still wasting my time.
Can some please help me to resolve this or guide me to get more descriptive error?
Regards
Sufian
Mohd Sufian www.sqlship.wordpress.com Please mark the post as Answered if it helped.
PJ Moka
I am experiencing the following communication problem with my VM server running on server 2012 hyper-v host:
when a network package leaves the vNIC of the VM it has the source mac address of the vNIC however when the same package leaves the physical NIC of the Host the package no longer has the source MAC address of the vNIC but that of the physical NIC. See below package trace output:
Packet trace on the VM (TFTP server with IP 192.168.1.35) note the TFTP client has IP 192.168.22
Packet trace on the host note the TFTP server has IP 192.168.1.35 and TFTP client has IP 192.168.22
If we pay attention to the highlighted section we see that the packet leaves the VNic with the source MAC 00-15-5D-01-1E-0E (mac address of the vNIC) and when it leave the physical NIC of the host the source MAC address is 78-AC-C0-11FC-9E (MAC address of the NIC of the HOST)
Furthermore you can see that none of the 5 packages (package 3-7) sent form the client to the server where the client sent the packet to the destination MAC 78-AC-C0-11FC-9E arrives at the VM, however the subsequent 5 packages that the client send to the server with the destination MAC 00-15-5D-01-1E-0E all arrives at the client.
It forgot to mention that the uplink of the virtual switch on the host is a network team using LACP and that uses the source and destination IP address as its load balancing mechanism.
Please note the following:
Last but not least we have tried, replacing the NICS in the server, connecting the host server to a different switch and even replacing all the cabling to the host server but none of these helped to resolve the problem.
Has anyone seen this behavior? Any idea what could be causing this?
Regards,
Screech
Hi guys,
we are using three node cluster with Windows Server 2012R2. Our virtual machines are virtualdesktops with Windows 8.1 guest OS, 4 vCPU and 8 GB of dynamic memory.Sometimes dynamic memory stops working, guest OS is not able to allocate more RAM and starts to swap. This swapping slows performance of all our virtual machines, sinceall virtual machines are on same cluster shared volume. This happens at random RAM amount allocated, for example at 2.6 GB,which is way below our 8 GB limit.
Live migration helps to solve this issue for migrated VM, after live migration the guest OS is able to allocatemore ram and starts to work properly, swapping disappears. However after some time, problem appears on other VM.
Our physical machines have 2x 10core Xeon and 394 GB of RAM. Only about 30% of RAM is used, so there is free space for all virtual machines. But we need to solve this issue so dynamic RAM starts to work properly.
Do you have similar experience?We have been using Hyper-V Server 2012 R2 (the free, core edition) in a 3 node cluster and noticed the following error in the Application log:
HYPER2012 8208 Error Microsoft-Windows-Security-SPP Application 1/18/2013 10:00:14 AM Acquisition of genuine ticket failed (hr=0xC004C4A2) for template Id {67a81643-c828-3e62-341f-a5bd2a25048d}
In Server Manager, the server displays as "Activated" under the Windows Activation column.
Checking with slmgr /ato I get
Activating Windows(R), ServerHyperCore edition {guid-stuff} ... Error: 0xC004C003 The activation server determined the specified product key is blocked
Is this normal or do we need to pay additional attention about this ?
Regards,
Mike
Hi
We are using HP Proliant DL580 G6 Server Machine, Windows server datacenter 2012 R2 Operating System installed on the HP Server and Hyper-V Role has configured and created windows 7 VM, in that VM accessing that Physical machine USB Devices can't accessing.
Please post the solution for the above mentioned issue, how to access the Physical machine USB ports on Virtual Machine.
Thanks & Regards
Sreenu Ambati
SBStech
Hello,
I'm getting the following error message on a Hyper-V server:
Log: Microsoft-Windows-Hyper-V-VMMS-Admin
Type: Error
Event: 15268
Agent Time: 2014-06-06 09:51:01Z
Event Time: 07:50:19 AM 6-Jun-2014 UTC
Source: Microsoft-Windows-Hyper-V-VMMS
Category: None
Username: SYSTEM
Computer: SERVER.domain.lan
Description: Failed to get the disk information.
I can't find any information regarding this error message/ID. Is there anyone who received the same error message once?
Kind regards,
Rense Hartog
Hi,
I'm trying to limit incoming bandwidth of Guest VM on Hyper-V (Host is running Windows Server 2012 R2). I noticed once I enabled Bandwidth Management, it only limits the outgoing bandwidth. The incoming is not limited to what I set earlier.
May I know how to set limitation on incoming bandwidth?
Thanks.
~Andre
Hello,
We've been trying to set up our new Server 2012R2 cluster but somehow live migration won't work. We've been running on 2012 for a while now and use the same setup with converged network configuration.
We currently have a 2 node cluster with a teamed 10Gbps adapter in LACP with Hyper-V port. On this team we've created a virtual switch with 3 vNICs. One for management, cluster and live migration traffic. The cluster is setup to only use the Live Migration network for migration. We can succesfully perform quick/offline migrations but as soon as we try a live migration it fails with the following error:
Virtual machine migration operations for '<VMNAME>' failed at migration source "<SOURCEHOST>. (Virtual Machine GUID)
Failed to receive data for a Virtual Machine migration: This operation returened because the timeout period expired. (0x800705B4).
We use kerberos authentication for the live migration but even with CredSSP we get the same results. We've also tried all different forms of migration: compression, smb etc.
We've been at this for a while now and any help is appreciated, it also seems that the error message is quite uncommon as there ain't much to find on the internet about this specific message.
