Hey Guys,
I have a 2 *LIVE* node S2D infrastructure, with storage pool configure and running,
one of the servers has only 1 SAS DISK used for OS, and we want to add a software raid for it,
my problem is:
once i add the physical disk to the server, it automatically joins it to the S2D storage pool,
i used remove-disk from the storage pool, but i still cant see the disk from disk-part or disk management to configure software RAID mirror,
what am i missing,
Thank you,
Hello,
I'm using Backup Exec 20.1 to perform daily backups of virtual machines, but quite offten the backup end up failing due to error:
V-79-57344-37935 - Snapshot Technology: Initialization failure on: "VRTSRV::\\backup.blade.local\Hyper-V?Virtual?Machine\DC_b". Snapshot technology used: Microsoft Volume Shadow Copy Service (VSS). Snapshot technology error (0xE000942F): Cannot capture a snapshot of the virtual machine volumes. Ensure that the Hyper-V Virtual Machine Management Service is running and the status of the Microsoft Hyper-V VSS writer is Stable. Check the Windows Event Viewer for details.
When i look for the writer in the "vssadmin list writer" output, the writer is not present there. If I restart Virtual machine management service and run vssadmin again, the writer appears.
Sometimes many backups can complete without the writer dissapearing, but then the writer dissapears again. I can't find any error on warning in Windows Event Viewer.
I'm running Windows server 2016 and the VM's are running on the same server as the Backup Exec is installed on.
So is there any sollution to this problem or a way to find out what is happening to the writer ?
Thanks
Martin
Microsoft .NET Framework 4.7.2 for Windows Server 2012 R2 kb4054566 caused the server with Exchange 2013 to restart in more than 15 minutes and after restarting 99% of the cpu is used and more than 15 services could not start.
Even after manually starting the services, the exchange server is almost unresponsive.
After uninstalling the update kb4054566 exchange came back up normally.
Please advice.
In Windows Server 2016 by using the new VHDS (sets) format of disk you are supposed to be able to use Hyper-V replica. However I can't get this to work. Has anyone got this working?
Just finished a NEW build of (1) SBS2003R2, (2) Webserver & (3)PABX
Server... on Server2008 WVS
Box HPDL 380 G5 6GB ram, raid1 37GB, raid 5 350GB
Server 2008 WVS Enterprise
Virtual
SBS2003R2 x86
Server2008Web x64 (WEB)
Server2008Web x64 (PABX)
This has been up for 8 days, I am testing continuosly, NO hickups,
install of SBS very fast, and after installing VM tools, extremly fast
and responsive. BUT
I need one Com port for my fax modem on the SBS server.
So I set the com port on the VM to \\.\pipe\com1
Now I have to do the corresponding on the Host server.
I tried to use WINdbg with the code of windbg -b -k com
ipe,port=\\.\pipe\com_1,resets=0 ,
I did not work, which I expected, the problems is I can't find any relevant documentation on how to do this.
It would be extremly helpful if we would have a driver from MS for this, or is there one?
Many thanks
Sepp
I'm used to work with VMWare ESX before, I have some basic knowledge of HyperV.
Except this one:
I want to mount my network location \\NAS\OperatingSystems\ to my HyperV server, so I can access my iso files fast and quickly when installing new machine on my HyperV test and education lab.
I known you can do this via gpo network drive connections but than a user needs to login. When you boot up HyperV there is no user logged in so?
Thanks!
I'm running Server 2016 Hyper-V and am trying to enable vTPM on Gen 2 guests running Server 2016. When I check the "Enable TPM" under the guest settings, it fails to start with the error:
"The virtual maching 'SVR-DC1' can't start because the host's Isolated User mode is off. Enabled Isolated User Mode feature in the host to start the virtual machine.
I cannot find a way to enable IUM. All documentation that I can find indicates that it is no longer a separate feature on the latest versions of Windows.
Hello.
we have problem replicate one VM.
Host WS2012R2, VM Guest WS2012R2
When i try replicate another it works.
Eventlog:
| Microsoft-Windows-Hyper-V-VMMS |
| EventID | 18012 |
Found stale snapshot entry
after that
| EventID | 33676 |
Replication operation for virtual machine 'XX' failed: The system cannot find the path specified. (0x80070003
Eventlog analytic:
Found stale snapshot entry (A1687DC8-4A47-4A21-86C1-FE596C6A033D) in snapshot list for realized VM A282D9F0-DD3A-4B79-96EE-CAAF661990A0 - ignoring snapshot!
ConfigRepository::StoreConfiguration failed to import VM configuration (HRESULT 0x80070003)!
I try vssadmin list snapshots - nothing
I try disksnaphot and list snapshots - nothing
In HV manager, no checkpints
Look at system volume information - nothing , only small old DPM bitmap files ( dpm uninstalled)
Integration tool current and working
Have anyone any idea what to do?
Thanks, Jan
Greetings everyone,
I'm having an odd situation where the low queue depth random reads and writes on an Intel 905P (Optane, 960GB) PCIe card are cut drastically when running within a Hyper-V VM. This happens on a Dell R740XD server with dual Xeon Gold CPU's as well as an AMD 1950X workstation, both times using a fully updated full GUI version of Windows 2016.
For testing, I'm using CrystalDiskMark 5.2.0, default settings.
On bare metal, queue depth 1 random reads are around 63500 IOPS and random writes are around 60000 IOPS.
However, if I install the Hyper-V role on that same computer, install a brand new VM that is running a fully updated version of Windows 2016, and then run the benchmark, the random reads and writes are down by around 2/3 to 16700 read IOPS and 16000 write IOPS.
Example Data:
Intel 905P on bare metal (Threadripper 1950x) - HyperV role not installed
The only files on the 905P are a second disk in the VM that I'm running the benchmark on. The OS disk is on another separate drive. I've tried both a fixed size VHDX, a dynamically assigned VHDX, as well as a physical hard disk attached, all with the same basic result of the QD1 numbers being much smaller.
As this is happening on a Dell R740XD server and an AMD workstation (non-dell), and I've tried other 905P drives just to rule that out, I'm left with Hyper-V. What I think it might be is some storage IO default throttling in place, but I do not know where to look.
For reference, for a project at work we installed dual Intel P4800X (enterprise version of the 905P) for a 2012 SQL server for TempDB as it helped increase performance. The server is a Dell R740XD, and I would like to virtualize the instance and take advantage of the SA benefit of unlimited virtualization since we have all the physical cores licensed (Enterprise). Upon initial set up of the physical server before HyperV I ran benchmarks on the 4800X and all looked great. Once the Hyper-V role was installed and the VM was running I saw the very reduced performance.
I was able to duplicate my results using the 905P, so that is where my testing is happening now.
Any thoughts on where to look?
Appreciate it everyone,
Mark
Hi,
I´m trying to enable hyper-v feature on a new server (build-pc) and doesn´t work.
I tried first Windows 2016 Hyper-v , installs and after all process it hangs in the last boot. 2012R2 and even 2019 same results. I tried too with full versions, and after enable hyper-v, windows hang on circle without any disk activity.
For a last test I install Windows 10 and enable hyper-v, works like a champ.
Every test was just fresh install and enable Hyper-v feature.
This machine is a AMD Ryzen 5 :(, I discovered if I disable SVM windows loads but (off course) Hyper-v won´t work, because the virtualization from CPU isn´t enabled.
I think is somenthing related to Windows Server plataform, based on Windows 10 works fine.
Any help or suggestion I will try, thanks in advance.
Augusto
Microsoft Certified System Engineer
Augusto - Brasil
We are using Hyper-V 2016 and have been for a while. One thing I noticed is individual cores being maxed out while other cores are in better shape. For example Node 1 may have much higher use than Node 0:
What I'm curious about is how come It isn't picking up available resources from the other node? Is that because of NUMA?
Hi Experts,
I have configured Hyper-V Replica on my DR site successfully and all goes fine. However from past two days replication suddenly stopped and entered in critical state so i decided to re-start replication but at the end it fails and producing error i have check and found below information on event viewer.
Wizard completed successfully.
After after complete loading it generate an error
As troubleshooting steps i have ran command mention in below post.
Event viewer on Primary Machine.
Log Name: Microsoft-Windows-Hyper-V-VMMS-Admin
Source: Microsoft-Windows-Hyper-V-VMMS
Date: 10/9/2018 1:09:59 PM
Event ID: 32000
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: CS1.csaplho.pk
Description:
Hyper-V failed to enable replication for virtual machine 'test-machine': The operation timed out (0x00002EE2). (Virtual machine ID 586079A3-AF78-4A86-B184-9565B5497470)
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>32000</EventID><Version>0</Version><Level>2</Level><Task>0</Task><Opcode>0</Opcode><Keywords>0x8000000000000000</Keywords><TimeCreated SystemTime="2018-10-09T08:09:59.515679900Z" /><EventRecordID>8951</EventRecordID><Correlation /><Execution ProcessID="2768" ThreadID="8504" /><Channel>Microsoft-Windows-Hyper-V-VMMS-Admin</Channel><Computer>CS1.csaplho.pk</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>test-machine</VmName><VmId>586079A3-AF78-4A86-B184-9565B5497470</VmId><ErrorMessage>%%12002</ErrorMessage><ErrorCode>0x00002EE2</ErrorCode></VmlEventLog></UserData></Event>Also i have try replica on two machine and same error occurred however different Primary server is same Replica server is fine.
Hello,
We have a Hyper-V Cluster with several VMs, which also includes Servers in Linux (Ubuntu mainly). Versions LTS are desired over the regular 6 months releases, and had (until today) no problem with them because of the integration services, offered by Microsoft (IP Injection among others).
https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/supported-ubuntu-virtual-machines-on-hyper-v
To deploy new VMs we use Templates. Unfortunately, when creating a new template for Ubuntu 18.04 LTS the VMM will not finish the creation of the new VM, because of the recent changes of Ubuntu 18 and its change from /etc/interfaces to netplan.io
https://wiki.ubuntu.com/BionicBeaver/ReleaseNotes#Ubuntu_Server
I am not sure if there is (like the other versions of Ubuntu) an update from Microsoft to integrate these VMs to a Hyper-V environment, or (if any) i would appreciate the help with any workaround to this issue.
I appreciate your help and guidance.
Best regards,
Hi Folks,
I've 2 Hyper-V servers.
Each server has 1 Physical HBA card used for SAN presentation(dedicated for SAN for Guest VM).
I've a guest VM running server 2012.
Fibre Channel Adapter has been created on one of this host and zoning has been created with NPIV is enabled.
Both the 2 Hyper-V servers are in a clustered mode. When i try to migrate the guest VM from one host the migration fails.
How can i ensure that the live migration works seamlessly from one host to another in case of host failure. The VM is getting isolated to one specific host and not failing over. Any suggestions would be of great help.
Thanks
Shashi
Does anyone help in finding the root cause of the below issue
"Memory allocated for packets in a vRss queue (on CPU 10) on switch C7F0382C-8091-4600-9793-2E49DC6C8B65 (Friendly Name: Thin Client Network Secondary) due to low resource on the physical NIC has increased to67584MB. Packets will be dropped once queue size reaches 512MB."
The above messages started appearing for 15 minutes, finally the memory allocated increased to 72.9 GB and hosts rebooted by windows bugcheck utility. VMQ was enabled.
when these messages started appearing, the all thin client machines lost connectivity with the VRTX hosts. we have redundant VRTX and redundant thin client network. But non of the redundancy worked.
I've Hyper-V Server 2016 free edition. There is 4 disks RAID10 for Hypervisor and 2 Server 2016 Standard VMs. There is another RAID5 storage. Each disk is connected to server by internal RAID controller.
How to share additional RAID5 storage to Guest Server 2016 VM?
RAID10 is only for Hypervisor and VM
RAID5 will be only for databases and user files, but how to give this storage for VM Servers?
I have a 2012R2 server running Hyper-V. Everything has been running just fine until I arrived this morning to find one of the VMs on the system not talking on the network. Turns out the web server VM has a hard coded address of 172.16.0.111 but is not communicating. Further investigation unearthed the fact that the ONLY VSwitch on the host was set to "Internal". HyperV failed to allow me to change this back to external. Creating a new VSwitch for external access worked fine. I moved all VM's onto this newly created External switch and all is fine. Oddest part of this issue is that the original and only VSwitch was set to External and working fine until this morning.
I can get into details regarding hardwares, etc. but I wondered if anyone else had seen such behaviour. The host has seen no changes in the past 10 days, patching etc. and was rebooted 10 days ago without issues.