Our SCVMM lost connection last night and we are unable to get it restarted. The other vm's came up fine but this server has a status of "Backing Up". This is 2012r2. The only option available is to "start" the server. When I try this I get the error:

The Application encountered an error while

attempting to change the state of

'ServerName'.

Any ideas on how to solve this?

I haven't seen any mention of this in any of the forums. I'm attempting to import a virtual machine to a Server 2012 R2 Hyper-V system. Normally this is fairly straight-forward. However, the imported virtual machine will not start. I'm getting the following error message:

[Window Title]
Hyper-V Manager

[Main Instruction]
An error occurred while attempting to start the selected virtual machine(s).

[Content]
'Unnamed VM' could not initialize.

An attempt to read or update virtual machine configuration failed.

[Expanded Information]
'Unnamed VM' could not initialize. (Virtual machine ID )

'Unnamed VM' could not read or update virtual machine configuration: The security ID structure is invalid. (0x80070539). (Virtual machine ID 223C7883-08C2-43ED-B5D1-7ABFC0940F64)

I'm not familiar with what is going on here. Any ideas?

Thank you.

Hi Buddy's

   I want to know if there is some way by which I can subscribe to some event from HYper-V server when one of the VM's network adapter reaches ceratain bandwidth limit say 1GB .

Let me know if there is some powershell way for doing this.

Thanks in advance.

Dear all,

I have a big problem with my hyper-v server and network card. I've found a lot of topic around this question but none of them helped me.

I have a Win 2008 R2 Server with only Hyper-V installed. I have 3 NIC , one is reserved to the host management and the others two are reserved for virtual machine .

All NIC are Intel, one is integrated on the Intel motherboard and the others are Intel Gigabit ET Dual port .

Before installing the role of Hyper-V all NIC worked perfectly with speed around 1Gb (file transfer average 90 MB/Sec, of course I have a Gigabit LAN) .

After Hyper-V install, the host system  is going very slow and the network file transfer using the dedicated NIC is about ten time slower (9-10MB /sec) . Same problem with all VM off and also if I remove all VM !

I tried all of suggestion found in old post (disabling TCP checksum / offload ...) but nothing happens.

What is really strange is that by removing all network card all the Host operating system seems to improve the speed... but, of course, I can't use  my LAN :(

I need help because every night I must make a full backup of Virtual hard disk from the host to a backup server in my lan.

My configuration:

- Server Win 2008 R2 SP1 with Hyper-V and no others role

- 2 Virtual Machine (one Win 2008 R2 and one Win 7 Ultimate)

- NAS Linux (access via SMB with no problem)

- Various Windows 7 Pro client

Thanks in advance to everybody,

Luca M.

Hi,

Since we installed the new version of Data Protection Manager 2012 R2, we get issue messages while backing up Windows Server 2008 R2 or 2012 R2 virtual machines. 

At every backups we will find the followings in Event Viewer:

Log Name:      System
Source:        partmgr
Date:          18.2.2014 21:40:34
Event ID:      58
Task Category: None
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      server01.domain.local
Description:
The disk signature of disk 2 is equal to the disk signature of disk 0.

This last line is repeated for each disk.

Sometime this line is preceded by the following:

Log Name:      System
Source:        VDS Basic Provider
Date:          20.1.2014 20:08:58
Event ID:      1
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      server01.domain.local
Description:
Unexpected failure. Error code: D@01010004

The registry is growing up with remaining entries under:

HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2

May someone help me? Thank you

Regards,

Samuel

Hello,

I'm currently doing some virtualization experiments on my new server hardware. The host hardware is:

IBM x3650 M4

x2 Xeon E5-2609

32GB RAM

x2 480 GB SSDs

Server OS: Windows server 2012

I'd like to test some legacy app virtualization. I've configured a VM and have installed Windows server 2003. The install is done via DVD. The issue at hand is that after the initial installation, the server fails to boot. The VM goes into a reboot loop and so far the only error logging I'm able to find is in the hosts event log. 

Log Name:      Microsoft-Windows-Hyper-V-Worker-Admin
Source:        Microsoft-Windows-Hyper-V-Worker
Date:          7/8/2014 2:14:48 PM
Event ID:      18560
Task Category: None
Level:         Critical
Keywords:      
User:          NT VIRTUAL MACHINE\A0D20FA4-B27B-4B58-85C1-87D74B0ADD2D
Computer:      CCSTS1.cnet2k.cornerstonecredit.net
Description:
'LegacyTS' was reset because an unrecoverable error occurred on a virtual processor that caused a triple fault. If the problem persists, contact Product Support. (Virtual machine ID A0D20FA4-B27B-4B58-85C1-87D74B0ADD2D)
Event Xml:<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"><System><Provider Name="Microsoft-Windows-Hyper-V-Worker" Guid="{51DDFA29-D5C8-4803-BE4B-2ECB715570FE}" /><EventID>18560</EventID><Version>0</Version><Level>1</Level><Task>0</Task><Opcode>0</Opcode><Keywords>0x8000000000000000</Keywords><TimeCreated SystemTime="2014-07-08T21:14:48.544007000Z" /><EventRecordID>159</EventRecordID><Correlation /><Execution ProcessID="1512" ThreadID="3536" /><Channel>Microsoft-Windows-Hyper-V-Worker-Admin</Channel><Computer>CCSTS1.cnet2k.cornerstonecredit.net</Computer><Security UserID="S-1-5-83-1-2698121124-1264104059-3615998341-769460811" /></System><UserData><VmlEventLog xmlns:auto-ns2="http://schemas.microsoft.com/win/2004/08/events" xmlns="http://www.microsoft.com/Windows/Virtualization/Events"><VmName>LegacyTS</VmName><VmId>A0D20FA4-B27B-4B58-85C1-87D74B0ADD2D</VmId><Rax>0x0</Rax><Rbx>0x0</Rbx><Rcx>0x0</Rcx><Rdx>0x0</Rdx><Rsp>0x804de00c</Rsp><Rbp>0x0</Rbp><Rsi>0x0</Rsi><Rdi>0x0</Rdi><R8>0x0</R8><R9>0x0</R9><R10>0x0</R10><R11>0x0</R11><R12>0x0</R12><R13>0x0</R13><R14>0x0</R14><R15>0x0</R15><Rip>0x80547c7c</Rip><Rflags>0x10046</Rflags><FpControlStatus>7F030000000000000000000000000000</FpControlStatus><XmmControlStatus>0000000000000000801F0000FFFF0000</XmmControlStatus><Cr0>0x8001003d</Cr0><Cr2>0x804ddffc</Cr2><Cr3>0xa02000</Cr3><Cr4>0x20</Cr4><Cr8>0xf</Cr8><Xfem>0x1</Xfem><Dr0>0x0</Dr0><Dr1>0x0</Dr1><Dr2>0x0</Dr2><Dr3>0x0</Dr3><Dr6>0xffff0ff0</Dr6><Dr7>0x400</Dr7><Es>0000000000000000FFFFFFFF2300F3C0</Es><Cs>0000000000000000FFFFFFFF08009BC0</Cs><Ss>0000000000000000FFFFFFFF100093C0</Ss><Ds>0000000000000000FFFFFFFF2300F3C0</Ds><Fs>00F0DFFF00000000FF1F0000300093C0</Fs><Gs>0000000000000000FFFFFFFF00000000</Gs><Ldtr>00000000000000000000000000000000</Ldtr><Tr>90685580000000006800000050008B00</Tr><Idtr>000000000000FF0700F4038000000000</Idtr><Gdtr>000000000000FF0300F0038000000000</Gdtr><Tsc>0x148e4294</Tsc><ApicBase>0xfee00900</ApicBase><SysenterCs>0x0</SysenterCs><SysenterEip>0x0</SysenterEip><SysenterEsp>0x0</SysenterEsp></VmlEventLog></UserData></Event>

My VM config

<?xml version="1.0" encoding="UTF-16" standalone="yes"?><configuration><_24984ed0-bdad-4b90-82b2-5d59f874e91e_><ChannelInstanceGuid type="string">{E4E9CD0E-4BBF-4C1B-B655-715781690655}</ChannelInstanceGuid></_24984ed0-bdad-4b90-82b2-5d59f874e91e_><_7d80d3db-61ee-4879-8879-5609f1100ad0_><address type="string">5353,00000000,00</address><version type="integer">1</version></_7d80d3db-61ee-4879-8879-5609f1100ad0_><_83f8638b-8dca-4152-9eda-2ca8b33039b4_><controller0><drive0><pathname type="string">E:\Hyper-V\VHD\LegacyTS.vhdx</pathname><pool_id type="string"></pool_id><type type="string">VHD</type></drive0><drive1><pathname type="string"></pathname><type type="string">NONE</type></drive1></controller0><controller1><drive0><pathname type="string">SCSI\CDROM&amp;VEN_IBM_SATA&amp;PROD_DEVICE_81Y3681\4&amp;1864BF9E&amp;0&amp;010000</pathname><pool_id type="string"></pool_id><type type="string">ISO</type></drive0><drive1><pathname type="string"></pathname><type type="string">NONE</type></drive1></controller1><version type="integer">5</version></_83f8638b-8dca-4152-9eda-2ca8b33039b4_><_8e3a359f-559a-4b6a-98a9-1690a6100ed7_><port0><connection type="string"></connection></port0><port1><connection type="string"></connection></port1><version type="integer">2</version></_8e3a359f-559a-4b6a-98a9-1690a6100ed7_><_8f0d2762-0b00-4e04-af4f-19010527cb93_><controller0><drive0><pathname type="string"></pathname><type type="string">VFD</type></drive0></controller0><version type="integer">1</version></_8f0d2762-0b00-4e04-af4f-19010527cb93_><_a80e9c62-750a-4a6b-9548-d46677e806be_><ChannelInstanceGuid type="string">{23c9c636-93de-4aec-9bef-220766177a24}</ChannelInstanceGuid><Connection><AltPortName type="string">Dynamic Ethernet Switch Port</AltPortName><AltSwitchName type="string">Intel(R) I350 Gigabit Network Connection - Virtual Switch</AltSwitchName><AuthorizationScope type="string"></AuthorizationScope><ChimneyOffloadWeight type="integer">0</ChimneyOffloadWeight><Feature_C885BFD1-ABB7-418F-8163-9F379C9F7166><DisplayName type="string"></DisplayName><Flags type="integer">0</Flags><Setting_97274751-A1EC-4DC2-941D-B7F9A1AED814><Data type="bytes">AAIAAGQAAAAAAAAAAQAAAAAAAAA=</Data><Version type="integer">256</Version></Setting_97274751-A1EC-4DC2-941D-B7F9A1AED814><Settings><Id type="string">97274751-A1EC-4DC2-941D-B7F9A1AED814</Id></Settings></Feature_C885BFD1-ABB7-418F-8163-9F379C9F7166><Features><Id type="string">C885BFD1-ABB7-418F-8163-9F379C9F7166</Id></Features><HostResources><HostResource type="string">8758EB1A-9687-41FC-9319-AE867D46BA5C</HostResource></HostResources><PoolId type="string"></PoolId><PreventIPSpoofing type="bool">False</PreventIPSpoofing><TestReplicaPoolId type="string"></TestReplicaPoolId><TestReplicaSwitchName type="string"></TestReplicaSwitchName></Connection><FriendlyName type="string">Network Adapter</FriendlyName><IsConnected type="bool">True</IsConnected><MacAddress type="string">00-15-5D-01-18-02</MacAddress><MacAddressIsStatic type="bool">False</MacAddressIsStatic><PortName type="string">E7F02418-A1EB-4FF9-84F8-BF461B2D00C6</PortName><SwitchName type="string">8758EB1A-9687-41FC-9319-AE867D46BA5C</SwitchName><VpciInstanceGuid type="string">{E9444985-111B-404A-82FE-48608A397676}</VpciInstanceGuid></_a80e9c62-750a-4a6b-9548-d46677e806be_><_ac6b8dc1-3257-4a70-b1b2-a9c9215659ad_><base_board><serial_number type="string">9595-3600-2199-6834-7686-3927-30</serial_number></base_board><bios_guid type="string">{B54BE7B5-05A4-4C4A-A2BD-D63272C7CCCD}</bios_guid><bios_serial_number type="string">9595-3600-2199-6834-7686-3927-30</bios_serial_number><boot><device0 type="string">Optical</device0><device1 type="string">HardDrive</device1><device2 type="string">Network</device2><device3 type="string">Floppy</device3></boot><chassis><asset_tag type="string">8437-8592-0329-9603-9215-1886-12</asset_tag><serial_number type="string">9595-3600-2199-6834-7686-3927-30</serial_number></chassis><num_lock type="bool">False</num_lock><version type="integer">2</version></_ac6b8dc1-3257-4a70-b1b2-a9c9215659ad_><_db8b9818-b4bb-4725-b99d-b4612716b6b4_><version type="integer">0</version></_db8b9818-b4bb-4725-b99d-b4612716b6b4_><global_settings><devices><allow_reduced_fc_redundancy type="bool">False</allow_reduced_fc_redundancy><generation_id type="string">883d11122d9b7b2c521be0c045ef3760</generation_id><storage_allow_full_scsi_command_set type="bool">False</storage_allow_full_scsi_command_set></devices><disk_merge_pending type="bool">False</disk_merge_pending><metrics><devicetype><deviceinstance><guid type="string">B637F346-6A0E-4DEC-AF52-BD70CB80A21D</guid><metric><enabled type="bool">False</enabled><lastcomputedtime type="integer">0</lastcomputedtime><peaktime type="integer">0</peaktime><poolid type="string"></poolid><resourcetypeid type="string">B637F347-6A0E-4DEC-AF52-BD70CB80A21D</resourcetypeid><starttime type="integer">0</starttime><typecode type="string">3F6F1051-C8FC-47EF-9821-C07240848748;0</typecode><value type="integer">0</value></metric></deviceinstance><guid type="string">B637F346-6A0E-4DEC-AF52-BD70CB80A21D</guid></devicetype><devicetype><deviceinstance><guid type="string">4764334D-E001-4176-82EE-5594EC9B530E</guid><metric><enabled type="bool">False</enabled><lastcomputedtime type="integer">0</lastcomputedtime><peaktime type="integer">0</peaktime><poolid type="string"></poolid><resourcetypeid type="string">4764334E-E001-4176-82EE-5594EC9B530E</resourcetypeid><starttime type="integer">0</starttime><typecode type="string">394DCE66-458F-4895-AE56-41D7C9602A49</typecode><value type="integer">0</value></metric><metric><enabled type="bool">False</enabled><lastcomputedtime type="integer">0</lastcomputedtime><peaktime type="integer">0</peaktime><poolid type="string"></poolid><resourcetypeid type="string">4764334E-E001-4176-82EE-5594EC9B530E</resourcetypeid><starttime type="integer">0</starttime><typecode type="string">FF85EA46-9933-4436-BE5D-C96827399966</typecode><value type="integer">0</value></metric><metric><enabled type="bool">False</enabled><lastcomputedtime type="integer">0</lastcomputedtime><peaktime type="integer">0</peaktime><poolid type="string"></poolid><resourcetypeid type="string">4764334E-E001-4176-82EE-5594EC9B530E</resourcetypeid><starttime type="integer">0</starttime><typecode type="string">04BDF59E-580D-4441-8828-FFFE44472D2D</typecode><value type="integer">0</value></metric></deviceinstance><guid type="string">4764334D-E001-4176-82EE-5594EC9B530E</guid></devicetype><devicetype><deviceinstance><guid type="string">83F8638B-8DCA-4152-9EDA-2CA8B33039B4</guid><metric><enabled type="bool">False</enabled><lastcomputedtime type="integer">0</lastcomputedtime><peaktime type="integer">0</peaktime><poolid type="string"></poolid><resourcetypeid type="string">70BB60D2-A9D3-46AA-B654-3DE53004B4F8</resourcetypeid><starttime type="integer">0</starttime><typecode type="string">AD29978B-AAB6-44AE-81CD-0609BF929F18;0\0\L</typecode><value type="integer">0</value></metric></deviceinstance><guid type="string">83F8638B-8DCA-4152-9EDA-2CA8B33039B4</guid></devicetype></metrics><owner><sid type="string">S-1-5-21-1940488291-1951097212-1584025624-1392</sid></owner><power><host_shutdown><action type="integer">1</action></host_shutdown><host_startup><action type="integer">1</action></host_startup></power><snapshots><list><size type="integer">0</size></list></snapshots><unexpected_termination><action type="integer">1</action></unexpected_termination><vhd_path_acled type="bool">True</vhd_path_acled></global_settings><manifest><size type="integer">11</size><vdev001><device type="string">58f75a6d-d949-4320-99e1-a2a2576d581c</device><flags type="integer">1</flags><instance type="string">58F75A6D-D949-4320-99E1-A2A2576D581C</instance><name type="string">Microsoft Synthetic Mouse</name></vdev001><vdev002><device type="string">197f74e3-b84b-46de-8ae6-82f1cd181cdc</device><flags type="integer">1</flags><instance type="string">197F74E3-B84B-46DE-8AE6-82F1CD181CDC</instance><name type="string">Microsoft Synthetic Keyboard</name></vdev002><vdev003><device type="string">f3cf6965-e8d3-44a9-9b7d-a04245ea7525</device><flags type="integer">1</flags><instance type="string">F3CF6965-E8D3-44A9-9B7D-A04245EA7525</instance><name type="string">Microsoft Synthetic Video</name></vdev003><vdev004><device type="string">84eaae65-2f2e-45f5-9bb5-0e857dc8eb47</device><flags type="integer">1</flags><instance type="string">84EAAE65-2F2E-45F5-9BB5-0E857DC8EB47</instance><name type="string">Microsoft Heartbeat Component</name></vdev004><vdev005><device type="string">2a34b1c2-fd73-4043-8a5b-dd2159bc743f</device><flags type="integer">1</flags><instance type="string">2A34B1C2-FD73-4043-8A5B-DD2159BC743F</instance><name type="string">Microsoft Key-Value Pair Exchange Component</name></vdev005><vdev006><device type="string">9f8233ac-be49-4c79-8ee3-e7e1985b2077</device><flags type="integer">1</flags><instance type="string">9F8233AC-BE49-4C79-8EE3-E7E1985B2077</instance><name type="string">Microsoft Shutdown Component</name></vdev006><vdev007><device type="string">2497f4de-e9fa-4204-80e4-4b75c46419c0</device><flags type="integer">1</flags><instance type="string">2497F4DE-E9FA-4204-80E4-4B75C46419C0</instance><name type="string">Microsoft Time Synchronization Component</name></vdev007><vdev008><device type="string">5ced1297-4598-4915-a5fc-ad21bb4d02a4</device><flags type="integer">1</flags><instance type="string">5CED1297-4598-4915-A5FC-AD21BB4D02A4</instance><name type="string">Microsoft VSS Component</name></vdev008><vdev009><device type="string">6c5addb9-a11a-4e8e-84cb-e6208201db63</device><flags type="integer">1</flags><instance type="string">6C5ADDB9-A11A-4E8E-84CB-E6208201DB63</instance><name type="string">Microsoft RDV Component</name></vdev009><vdev010><device type="string">2fc216b0-d2e2-4967-9b6d-b8a5c9ca2778</device><flags type="integer">1</flags><instance type="string">A80E9C62-750A-4A6B-9548-D46677E806BE</instance><name type="string">Synthetic Ethernet Port</name></vdev010><vdev011><device type="string">d422512d-2bf2-4752-809d-7b82b5fcb1b4</device><flags type="integer">1</flags><instance type="string">24984ED0-BDAD-4B90-82B2-5D59F874E91E</instance><name type="string">Synthetic SCSI Controller</name></vdev011><version type="integer">260</version></manifest><properties><global_id type="string">B37E54CD-FFBB-44DA-8B7C-322B922EAD72</global_id><highly_available type="bool">False</highly_available><last_powered_off_time type="integer">130493284127496105</last_powered_off_time><last_powered_on_time type="integer">130493284065876653</last_powered_on_time><last_state_change_time type="integer">130493284127496105</last_state_change_time><name type="string">LegacyTS</name><notes type="string"></notes><type_id type="string">Virtual Machines</type_id><version type="integer">1024</version></properties><settings><global><logical_id type="string">B37E54CD-FFBB-44DA-8B7C-322B922EAD72</logical_id></global><memory><bank><dynamic_memory_enabled type="bool">True</dynamic_memory_enabled><limit type="integer">1048576</limit><priority type="integer">5000</priority><reservation type="integer">512</reservation><size type="integer">4096</size><target_memory_buffer type="integer">20</target_memory_buffer></bank><vnuma><max_size_per_node type="integer">14770</max_size_per_node></vnuma></memory><processors><count type="integer">1</count><features><limit type="bool">False</limit></features><limit type="integer">100000</limit><limit_cpuid type="bool">False</limit_cpuid><reservation type="integer">0</reservation><vnuma><count_per_node><max type="integer">4</max></count_per_node><node_per_socket><max type="integer">1</max></node_per_socket></vnuma><weight type="integer">100</weight></processors><stopped_at_host_shutdown type="bool">False</stopped_at_host_shutdown><vnuma><enabled type="bool">False</enabled></vnuma></settings></configuration>

If its relevant, the host is not yet activated license wise. I downloaded the demo version so I could test my idea before making a purchase to go ahead with full implementation. 

As it stands right now I'm not sure how to troubleshoot this. Many searches on google have not turned up any helpful info. Does anyone have any ideas?

Thanks,

D

Hi,

windows 2012 hyper V

Observed higher ping timeout for corresponding VMs during VM Live migration or if node failover.

its more than 50 timeouts.failover is happening and but server was working

what is the normal timeout / network delay to reach VM during livemotion or is it a product limitation ?

I am running Hyper-V Server 2012 R2 (Server Core).  I have an SSD boot drive and a 10 Tb Storage Space HDD (Double Pairty - RAID6) where all VMs are stored.

I have one VM setup with an expanding VHDX file.  It is setup with thin provisioning for 2 Tb and about 1.5 Tb is currently used.  The VM paused due to physical disk space (SS drive) being low.  I turned off this VM and tried to start a different VM that has two fixed size VHDX files (also on the SS drive).  This second VM would not start either.  I got the same error message, as occurred on the first VM, about the physical disk space being low.  There was about 10-20 Mb of physical space left of my SS HDD when these errors occurred.

Given the first VM is setup with an expanding VHDX that makes sense to me that at some point there may not be enough physical disk space for the VM to expand and continue to run.

But given my second VM is using a fixed VHDX it doesn't make sense to me that I cannot get this VM to start.  Even if the Storage Space disk were completely full I would expect this VM to be able to start?

Thanks for any assistance you can provide.

Theokrat

Hello ,

I want to create a powershell script  to enable /remove VM replication on spacific VM . on a cluster

"Note VM may moved to any host , so i don't want to mention the host in the script"

Ramy Shaker

Hi,

I'm trying to use add-vmnetworkadapterextendedacl to block inbound traffic to specific port on a VM.

I created the following rules

ParentAdapter      : Microsoft.HyperV.PowerShell.VMNetworkAdapter

Direction          : Inbound

Action             : Allow

LocalIPAddress     : ANY

RemoteIPAddress    : ANY

LocalPort          : ANY

RemotePort         : ANY

Protocol           : ANY

Weight             : 1

Stateful           : False

IdleSessionTimeout : 0

IsolationID        : 0

ToRemove           : False

ParentAdapter      : Microsoft.HyperV.PowerShell.VMNetworkAdapter

Direction          : Inbound

Action             : Deny

LocalIPAddress     : ANY

RemoteIPAddress    : ANY

LocalPort          : 3389

RemotePort         : ANY

Protocol           : tcp

Weight             : 100

Stateful           : False

IdleSessionTimeout : 0

IsolationID        : 0

ToRemove           : False

But I can stil use RDP to connect to the VM?

Kind regards,
Hans Mannaerts

Met vriendelijke groeten, Salutations/Best regards, Hans Mannaerts

I have certificate-based replication working between two Server 2012 R2 workgroup servers.  Through Hyper-V Manager I can resolve any issues with replication, particularly in the scenario where I failover and wish to reverse replication.  Take a DR scenario where I the primary goes offline, I initiate failover, start the replica VM, and wish to reverse replication after the primary has come back online following the power simulated power loss, but via powershell. I'm missing a key step, but I don't know what.

1. PRIHOST goes down and the VM REPME1 is now offline.

2. On REPHOST, I initiate start-vmfailover and start-vm REPME1.

3. Power is restored to PRIHOST and is back up. VM REPME1 is in the inventory but powered off. PRIHOST remains the Primary for replication. REPHOST is still the Replica.  Replication has failed, which is expected.

4. I try to reverse replication with set-vmreplication -reverse, but I get an error "Could not reverse replication for virtual machine 'REPME1'. (Virtual machine ID ...) The operation cannot be performed while the virtual machine is in its current state. The name of virtual machine is REPME1 and its ID is ...

5. When I reverse replication in the Hyper-V Manager immediately following it synchronizes back the changes successfully and replication returns to normal.

I suspect that I'm missing a step.

-Michael Kelsey

Hi Everyone,

I have a Windows 2008 R2 Hyper-V Cluster working fine. It has actually two virtual networks and a cluster network, and I and going to add a 10 Gbps NIC to both nodes in the cluster.

My aim is to send/receive all network traffic used by virtual machines through that new 10 Gbps NIC, using VLANs I already have in my physical switches. Is it posible to do this once the cluster is created and working? How should I proceed?

Once I have done it, I would like to change all virtual NICs in virtual machines to the new virtual networks and remove the old virtual networks. Any special direction on how to do it? 

Thank you very much,

Best Regards.

David.

Hello,

I recently created a remote desktop collection using windows server 2012 R2 on an HP ProLiant BL620c G7 Blade Server (which has completely up to date firmware and drivers). There are 30 VM’s running on the server, and it is running great – for the most part. My issue is that, it seems to be at random (maybe once every 48 hours), users will be disconnected from their session, and they are unable to log back into their session remotely. I can log into their session as a local user by going through hyper-v, however once I am in there I notice that I have no internet or network access. To solve this problem, I have to go onto the network adapter of the VM, disconnect the virtual switch assigned to the VM, and reconnect it again. Doing this provides remote access to the VM again.

I initially thought the issue came from the configuration of the virtual switch. The HP Blade Server has 4 10 gig NIC’s, and they were teamed into two teams (each team having 2 physical NIC’s). I created two separate external network virtual switches from each Team. I also had “allow management operating system to share this network adapter” checked. I noticed a warning on the server side when a disconnect would occur which was Event 16945 “MAC Conflict: A port on the virtual switch has the same MAC as one of the underlying team members on Team Nic Microsoft Network Adapter Multiplexor Driver.” Because this error occurred at the same time as a disconnect, I assumed that this warning message was causing the problem, and I was able to resolve it by redoing the NIC team to where there of the physical NICs were teamed together and a virtual switch was created from them without the checkbox that allowed management operating systems to share the network adapter. This left one NIC available for management purposes, and I haven’t seen the error message since, however disconnects still continue occur.

I do not see any helpful information in the event logs of the client VM when one of these disconnects occur, and the users are doing nothing out of the ordinary that would cause it to happen. In fact this problem has happened when a user has been disconnected from their machine for over 10 hours.

Anyone have any thoughts as to what is going on here?

Our setup is as follows...

(3) Hyper-V Hosts

(2) 2012 R2 Virtual Domain Controllers

CSV Storage

When I Migrate a Virtual Server from one host to another the A record for that server gets deleted from DNS.  I can do an ipconfig /registerdns on the VM and it will populate in DNS, but as soon as I migrate the server to another host it will erase again. We're not seeing any errors in Event Viewer.  Within ADSI Edit the dNSTombstoned attribute turns to TRUE after a migration, then back to FALSE after we run ipconfig /registerdns 

Any idea why this would be happening or how I can fix this issue?

this is driving me nuts.

I have a vm with an internal and external switch.

I am trying to get backups to route to the host machine using the internal switch only.

I've gone all over priorities and the routes are all fine but the data will constantly go over the external switch.

If i disable external switch traffic goes over internal switch just fine.

I've read about the automatic detection of least cost routing on the internal switch but just can not get it to run correctly.

please help

Doug

Our setup is the following:

Three Dell Poweredge R720s running Windows Server 2012 R2 (which was upgraded in place from 2012). These servers run Hyper-V and we use Virtual Switch Manager to manage the networking in the VMs. Due to the fact that the Ethernet ports do not map to the correctly labelled Ethernet adapters in the operating system, we have notes in the Hyper-V switch manager to show which virtual adapter is mapped to which physical port.

I'm not sure if it was after the upgrade to 2012 R2 or something else, but the notes from the Virtual Switch Manager have just disappeared. Everything else has stayed the same, but there's no notes any more. Has anyone else encountered this? Is there any way we can prevent this happening? We believe it is also happening when we do live migrations, but we need to do a few more tests to see what happen when, so I can't confirm.

Hi,

i am trying to add previously created VHD to VM but i can not 

i got this error msg.

Failed to add device "Virtual Hard Disk"

Attachment "path" failed to open because of error"the process cannot access the file because it is being used by another process""

Note: there is no other VMs use this VHD, i am trying to use it or remove it permenantly

Hello, everyone,

I have a question to Technet community. Hopefully, someone will be able to help.

We’re in the process of building a new Hyper-V environment, and the interesting question has arisen once again.

Is there any way to compartmentalize all resources in a host or a cluster? For instance, create resource aggregations as direct children of the host or cluster and configure them and then delegate control over these entities to other individuals or organizations?

VMware is using “resource pool” concept for the same purpose (illustrated above), but as far as I know Hyper-V “resource pools” aren’t the same, being used mostly for billing purposes.

Is the SCVMM with its “private cloud” mechanism the last resort? Or may be I’m looking in wrongdirection here? 

Kind regards, Leonardo.

I'm IT manager for a small company. We are looking to replace our collection of aging office servers running Windows 2003 and 1 x ESXi 4 with a new virtualized setup.

The plan was to run on ESXi 5.5:

- 1 x Windows 2012 VM - Domain Controller (New domain - old one is a mess)

- 1 x Windows 2012 VM - File storage and source control

- 1 x Windows 2012 VM - SQL server 2012 and IIS

- 1 x Windows 2012 VM - Telephone system (this will come later)

- Plus possibly 2 virtualized old windows 2003 machines (SQL 2005) currently on ESXi 4

- Possibly secondary Windows 2012 Domain controller on a separate low spec server (do we really need 2?)

- NAS device for backups with sync to cloud

I now have the hardware ready to setup and think our Developer Action Pack has us covered for software licensees. However I'm now thinking Hyper-v might be a better route for us, as we work primary with Microsoft systems (Windows, .NET, SQL server) and are looking to use some Azure services in the long term.

The only problem is I have no experience configuring Hyper-V and Windows 2012. Current hosting experience is working mostly with Windows 2003 / 2008 and ESXi 4. Unfortunately I don't have much time or money to get this up and running.