I am looking from something similar to Vmware vicfg-hostops and vmrun cmd that I can use from Linux machines.
Is there a way to manage hyper-v hosts from Linux machines ?
↧
↧
nvme driver for hyper-V
Hi
There exists a Windows driver for NMVe devices (http://www.nvmexpress.org/resources/). The source code is vailable here (http://www.openfabrics.org/svnrepo/nvmewin/trunk/source/). I have a few question considering how to make the NVMe device available to guests running upon the Hyper-V.
I will start from simple to hard:
Q1: Is is possible to use in Hyper-V drivers developed for Windows without any changes?
Q2: In case the answer to Q1 is positive, does VSP transparently maps the hardware to the VSC or not? In case of transparent mapping how should I see the underling nvme device (as a scsi one or nvme). The http://www.openfabrics.org/svnrepo/nvmewin/trunk/source/nvme.inf contains
Class=SCSIAdapter
…
LoadOrderGroup = SCSI miniport
AddReg = pnpsafe_pci_addreg
AddReg = Parameters
Q3: In case I’m using a guest operating systems that support Enlightened I/O, can I relay that the advantage of VMBus will be directly taken?
Q4: NVMe devices are supporting several so called namespaces. One can treate them as a separate storage devices (like LUNs).Now the question is twofold. If Hyper-V maps up the underling NVMe device as a scsi device, is it reasonable to assume that the namespaces managements (aka LUNs) is done via Hyper-V configuration CLI or Microsoft Management Console just like SCSI LUNs. If Hyper-V doesn’t maps the NVME device as a scsi, can the configuration CLI be extended to support namespace configuration?
Thanks
David
↧
VM-w2k8 Datacenter crash after restart
Hello everyone.
I have problem with one of my vm machine hosted on Hyper-V.
Guest system is Server 2008 r2 Datacenter.
When I restart machine its shutingdown without problem. Next its starting i see progres bar for loading system and then machine crash without BDOS or creating dump file. It looks like machine is turned off down by hypervisor ...
I have find event like below on my hypervisor but it dosen't say to much.
event id 1069 cluster resource %name in clustered service or application %name failed.
There no more event and im sure that resourec are accesible.
Have someone have any sugestion how to resolve this problem.
Ps. Both host and guest machine are fully updated.
Best regards and thanks for advices.
Keiishi
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Remote Management of Hyper-V Across One-Way Trust
In order to abstract our hardware from the platform, we would like to virtualize all of our physical machines, installing Hyper-V server and just running one VM on Hyper-V. We hope this will allow us to quickly migrate machines that currently cannot be on our virtual environment for whatever reason.
We set up a management domain for all of the Hyper-V servers separate from our main domain. A one way trust was established between the main domain and the management domain, with the management domain trusting the main domain. On the management domain, we created a domain local group, called Management Domain Admins, which contains the foreign security principals from the main domain. The Management Domain Admins group is added to the Hyper-V built in Administrators group.
Now here is the problem, from a workstation in the main domain, we can manage every part of that server except for adding a virtual hard disk. We can manage the firewall, we can look through the event log, we can create virtual machines and connect them to existing virtual hard disks, but we cannot create a virtual hard disk. The log returns:
The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)
We disabled the firewall on both the workstation and the server with the same result. Using a workstation WITHIN the management domain, logging in with an account from the main domain, we can create a virtual hard disk. We have also tried enabling anonymous DCOM and adding the Hyper-V server to the Trusted Hosts list in WinRM to no avail. Also, using inline authentication, we can create virtual hard disks on the server BEFORE adding it to the domain. But as soon as it's added to the domain, we can no longer create hard disks.
Appreciate any insight!
↧
Extreme problem - HyperV is not saving machine config files properly.
I've encountered a problem with HyperV which involved the system performing a save state for a reboot.
Other machines saved and closed up fine. However one of our machines must have had changes or something strange.
The changes weren't the problem. It was the way hyperv saved the file.
The file was not truncated first, so if the configuration file's size shrinks, it leaves a whole bunch of extra garbage at the end of the config file. (Unparsable XML Code).
Event ID 18160
You can inspect your XML files by opening them with something like internet explorer. If it cuts out near the bottom with a parse error at the end, then that was the cause (bad data still left at the end of the config).
This can make the configuration just disappear from the HyperV manager. Honestly, why isn't this at least brought to attention with something more english like.
Microsoft, please get someone on fixing this ASAP. It can be a huge issue if notes in a config file are changed and the file becomes smaller.
<?xml version="1.0" encoding="UTF-16" standalone="yes"?>
<configuration>
<_2497f4de-e9fa-4204-80e4-4b75c46419c0_>
<EnabledState type="integer">3</EnabledState>
</_2497f4de-e9fa-4204-80e4-4b75c46419c0_>
<_83f8638b-8dca-4152-9eda-2ca8b33039b4_>
<controller0>
<drive0>
<pathname type="string">E:\Hyper-V\vm-Prod-SQL\VM-Prod-SQL-disk1.vhd</pathname>
<type type="string">VHD</type>
</drive0>
<drive1>
<pathname type="string">E:\Hyper-V\vm-Prod-SQL\VM-Prod-SQL-disk2.vhd</pathname>
<type type="string">VHD</type>
</drive1>
</controller0>
<controller1>
<drive0>
<pathname type="string">E:\ISO\en_office_sharepoint_server_2007_EE_and_SE_DVD_X13-38823.iso</pathname>
<type type="string">ISO</type>
</drive0>
<drive1>
<pathname type="string">E:\Hyper-V\vm-Prod-SQL\VM-Prod-SQL-Disk3.vhd</pathname>
<type type="string">VHD</type>
</drive1>
</controller1>
<enable_track_cache type="bool">True</enable_track_cache>
<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_>
<_a8a21672-99a4-4bcd-bb67-e7d90764f4fc_>
<ChannelInstanceGuid type="string">{6044c5f6-9c29-43d7-ac25-7a3e4a68ca26}</ChannelInstanceGuid>
<FriendlyName type="string">Network Adapter</FriendlyName>
<IsConnected type="bool">True</IsConnected>
<MacAddress type="string">00-15-5D-64-1A-09</MacAddress>
<MacAddressIsStatic type="bool">False</MacAddressIsStatic>
<PortName type="string">8a8da045-3833-413f-ace1-cfb3927908df</PortName>
<SwitchName type="string">1467cd13-468f-4360-96b0-4f5d975544ad</SwitchName>
</_a8a21672-99a4-4bcd-bb67-e7d90764f4fc_>
<_ac6b8dc1-3257-4a70-b1b2-a9c9215659ad_>
<base_board>
<serial_number type="string">0479-0232-3489-3094-8015-3472-48</serial_number>
</base_board>
<bios_guid type="string">{503CE3AB-CABB-4A0C-96EB-D03D14CEE6F8}</bios_guid>
<bios_serial_number type="string">0479-0232-3489-3094-8015-3472-48</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">0991-4035-2547-6297-7322-3795-21</asset_tag>
<serial_number type="string">0479-0232-3489-3094-8015-3472-48</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_>
<SPD_A0 type="integer">4181387501</SPD_A0>
<SPD_A2 type="integer">2264515423</SPD_A2>
<SPD_A4 type="integer">2703485784</SPD_A4>
<SPD_A6 type="integer">1107243157</SPD_A6>
<version type="integer">0</version>
</_db8b9818-b4bb-4725-b99d-b4612716b6b4_>
<global_settings>
<disk_merge_pending type="bool">False</disk_merge_pending>
<owner>
<sid type="string">S-1-5-21-1935655697-1606980848-1957994488-2651</sid>
</owner>
<power>
<host_shutdown>
<action type="integer">1</action>
</host_shutdown>
<host_startup>
<action type="integer">2</action>
<delay type="integer">600000000</delay>
</host_startup>
</power>
<snapshots>
<list>
<size type="integer">0</size>
</list>
</snapshots>
<unexpected_termination>
<action type="integer">1</action>
</unexpected_termination>
</global_settings>
<manifest>
<size type="integer">8</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">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>
</vdev002>
<vdev003>
<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>
</vdev003>
<vdev004>
<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>
</vdev004>
<vdev005>
<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>
</vdev005>
<vdev006>
<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>
</vdev006>
<vdev007>
<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>
</vdev007>
<vdev008>
<device type="string">2fc216b0-d2e2-4967-9b6d-b8a5c9ca2778</device>
<flags type="integer">1</flags>
<instance type="string">a8a21672-99a4-4bcd-bb67-e7d90764f4fc</instance>
<name type="string">Microsoft Synthetic Ethernet Port</name>
</vdev008>
<version type="integer">260</version>
</manifest>
<properties>
<global_id type="string">E021A095-7D94-4A1F-8A08-5AB3AFCA7354</global_id>
<last_powered_off_time type="integer">128586783435736417</last_powered_off_time>
<last_powered_on_time type="integer">128570559531931085</last_powered_on_time>
<last_state_change_time type="integer">128586785989740834</last_state_change_time>
<name type="string">vm-Prod-SQL</name>
<notes type="string"></notes>
<type_id type="string">Virtual Machines</type_id>
</properties>
<savedstate />
<settings>
<global>
<logical_id type="string">E021A095-7D94-4A1F-8A08-5AB3AFCA7354</logical_id>
</global>
<memory>
<bank>
<size type="integer">1200</size>
</bank>
</memory>
<processors>
<count type="integer">2</count>
<limit type="integer">100000</limit>
<reservation type="integer">0</reservation>
<weight type="integer">100</weight>
</processors>
<stopped_at_host_shutdown type="bool">True</stopped_at_host_shutdown>
</settings>
</configuration> <memory>
<bank>
<size type="integer">1200</size>
</bank>
</memory>
<processors>
<count type="integer">2</count>
<limit type="integer">100000</limit>
<reservation type="integer">0</reservation>
<weight type="integer">100</weight>
</processors>
<stopped_at_host_shutdown type="bool">True</stopped_at_host_shutdown>
</settings>
</configuration>
Notice the extra garbage data left at the end of the file after it was supposed to be cleared and written shorter.
Ugh, it's almost 3 AM I'm really sorry if this post just sounds horribly bad in grammar.
Essentially somewhere in the code you're just writting the bytes intead of deleting and re-writing the file.
Alexi Nostavich
Other machines saved and closed up fine. However one of our machines must have had changes or something strange.
The changes weren't the problem. It was the way hyperv saved the file.
The file was not truncated first, so if the configuration file's size shrinks, it leaves a whole bunch of extra garbage at the end of the config file. (Unparsable XML Code).
Event ID 18160
The requested operation cannot be performed on a file with a user-mapped section open. (0x800704C8)
You can inspect your XML files by opening them with something like internet explorer. If it cuts out near the bottom with a parse error at the end, then that was the cause (bad data still left at the end of the config).
This can make the configuration just disappear from the HyperV manager. Honestly, why isn't this at least brought to attention with something more english like.
Microsoft, please get someone on fixing this ASAP. It can be a huge issue if notes in a config file are changed and the file becomes smaller.
<?xml version="1.0" encoding="UTF-16" standalone="yes"?>
<configuration>
<_2497f4de-e9fa-4204-80e4-4b75c46419c0_>
<EnabledState type="integer">3</EnabledState>
</_2497f4de-e9fa-4204-80e4-4b75c46419c0_>
<_83f8638b-8dca-4152-9eda-2ca8b33039b4_>
<controller0>
<drive0>
<pathname type="string">E:\Hyper-V\vm-Prod-SQL\VM-Prod-SQL-disk1.vhd</pathname>
<type type="string">VHD</type>
</drive0>
<drive1>
<pathname type="string">E:\Hyper-V\vm-Prod-SQL\VM-Prod-SQL-disk2.vhd</pathname>
<type type="string">VHD</type>
</drive1>
</controller0>
<controller1>
<drive0>
<pathname type="string">E:\ISO\en_office_sharepoint_server_2007_EE_and_SE_DVD_X13-38823.iso</pathname>
<type type="string">ISO</type>
</drive0>
<drive1>
<pathname type="string">E:\Hyper-V\vm-Prod-SQL\VM-Prod-SQL-Disk3.vhd</pathname>
<type type="string">VHD</type>
</drive1>
</controller1>
<enable_track_cache type="bool">True</enable_track_cache>
<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_>
<_a8a21672-99a4-4bcd-bb67-e7d90764f4fc_>
<ChannelInstanceGuid type="string">{6044c5f6-9c29-43d7-ac25-7a3e4a68ca26}</ChannelInstanceGuid>
<FriendlyName type="string">Network Adapter</FriendlyName>
<IsConnected type="bool">True</IsConnected>
<MacAddress type="string">00-15-5D-64-1A-09</MacAddress>
<MacAddressIsStatic type="bool">False</MacAddressIsStatic>
<PortName type="string">8a8da045-3833-413f-ace1-cfb3927908df</PortName>
<SwitchName type="string">1467cd13-468f-4360-96b0-4f5d975544ad</SwitchName>
</_a8a21672-99a4-4bcd-bb67-e7d90764f4fc_>
<_ac6b8dc1-3257-4a70-b1b2-a9c9215659ad_>
<base_board>
<serial_number type="string">0479-0232-3489-3094-8015-3472-48</serial_number>
</base_board>
<bios_guid type="string">{503CE3AB-CABB-4A0C-96EB-D03D14CEE6F8}</bios_guid>
<bios_serial_number type="string">0479-0232-3489-3094-8015-3472-48</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">0991-4035-2547-6297-7322-3795-21</asset_tag>
<serial_number type="string">0479-0232-3489-3094-8015-3472-48</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_>
<SPD_A0 type="integer">4181387501</SPD_A0>
<SPD_A2 type="integer">2264515423</SPD_A2>
<SPD_A4 type="integer">2703485784</SPD_A4>
<SPD_A6 type="integer">1107243157</SPD_A6>
<version type="integer">0</version>
</_db8b9818-b4bb-4725-b99d-b4612716b6b4_>
<global_settings>
<disk_merge_pending type="bool">False</disk_merge_pending>
<owner>
<sid type="string">S-1-5-21-1935655697-1606980848-1957994488-2651</sid>
</owner>
<power>
<host_shutdown>
<action type="integer">1</action>
</host_shutdown>
<host_startup>
<action type="integer">2</action>
<delay type="integer">600000000</delay>
</host_startup>
</power>
<snapshots>
<list>
<size type="integer">0</size>
</list>
</snapshots>
<unexpected_termination>
<action type="integer">1</action>
</unexpected_termination>
</global_settings>
<manifest>
<size type="integer">8</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">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>
</vdev002>
<vdev003>
<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>
</vdev003>
<vdev004>
<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>
</vdev004>
<vdev005>
<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>
</vdev005>
<vdev006>
<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>
</vdev006>
<vdev007>
<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>
</vdev007>
<vdev008>
<device type="string">2fc216b0-d2e2-4967-9b6d-b8a5c9ca2778</device>
<flags type="integer">1</flags>
<instance type="string">a8a21672-99a4-4bcd-bb67-e7d90764f4fc</instance>
<name type="string">Microsoft Synthetic Ethernet Port</name>
</vdev008>
<version type="integer">260</version>
</manifest>
<properties>
<global_id type="string">E021A095-7D94-4A1F-8A08-5AB3AFCA7354</global_id>
<last_powered_off_time type="integer">128586783435736417</last_powered_off_time>
<last_powered_on_time type="integer">128570559531931085</last_powered_on_time>
<last_state_change_time type="integer">128586785989740834</last_state_change_time>
<name type="string">vm-Prod-SQL</name>
<notes type="string"></notes>
<type_id type="string">Virtual Machines</type_id>
</properties>
<savedstate />
<settings>
<global>
<logical_id type="string">E021A095-7D94-4A1F-8A08-5AB3AFCA7354</logical_id>
</global>
<memory>
<bank>
<size type="integer">1200</size>
</bank>
</memory>
<processors>
<count type="integer">2</count>
<limit type="integer">100000</limit>
<reservation type="integer">0</reservation>
<weight type="integer">100</weight>
</processors>
<stopped_at_host_shutdown type="bool">True</stopped_at_host_shutdown>
</settings>
</configuration> <memory>
<bank>
<size type="integer">1200</size>
</bank>
</memory>
<processors>
<count type="integer">2</count>
<limit type="integer">100000</limit>
<reservation type="integer">0</reservation>
<weight type="integer">100</weight>
</processors>
<stopped_at_host_shutdown type="bool">True</stopped_at_host_shutdown>
</settings>
</configuration>
Notice the extra garbage data left at the end of the file after it was supposed to be cleared and written shorter.
Ugh, it's almost 3 AM I'm really sorry if this post just sounds horribly bad in grammar.
Essentially somewhere in the code you're just writting the bytes intead of deleting and re-writing the file.
Alexi Nostavich
↧
↧
Can I.. three non-clustered 08r2 (enterprise) guest VM upgrade individually to 2012 datacenter VMs
There is a plethora of information out there about migration of clustered 08r2 VMs to 2012 VM as is there also a ton of info on upgrading the 2008 R2 host to 2012.
What I cannot find, is in a non-clustered, non-HA scenario, for a small customer running Lync, TMG, and File services off of one host, containing those three VMs, they want all four (the one host and thee guest VMs, all Hyper-V 2008R2 Enterprise) to be 'Upgraded', to 2012.
Can the Hyper-V 2008R2 Enterprise Hosts be safely upgraded one-by-one, within the VM, to 2012 Datacenter or do we have to treat it in theory as a cluster and use migration tools?
Since all three are in production, after redundant backups are made, the goal would be to bring each guest from 09r2 to 2012 up one by one, test overnight, and then test in production before moving into a new cluster...
Thanks!
B
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Ubuntu 12.10 GPT partition >2TB not working
Hi!
Hyper-V on 2012.
I've got a Ubuntu, 12.10, server installation which i try to add some storage to. I've created 64GB harddrive (VHDX) as the 1st drive. And then a 2nd drive 4TB (VHDX). Thin.prov on both.
Creating and formating: Using gdisk, parted or gparted (livecd) on ubuntu I'm not able to partition, GPT, and initiate a filesystem on the the large VHDX.
Is there a problem with Hyper-V 2012 and drives (VHDX) >2TB when used by guests?
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Same disk copy in VM very slow compared to network copy (HyperV 2012)
I have a weird behavior on some of my VMs:
Host OS Windows Server 2012 with Hyper-V
Guest OS both 2008R2 and 2012
Storage Equallogic SAN, iSCSI
Gigabit ethernet
The host is connected to a 1 GB Volume where the VHD of the VM are stored
If I copy a large file (say a template .VHDX) from the HD of the host, via network, to the drive (a. VHDXfile ) of the guest, transfer speeds are acceptable (start well over 300 MB/s then stabilizes to 80 MB/s), and compatible with the virtual gigabit network card on the VM
If I copy the same file on the VM (a simple ctrl-c ctrl-v on the same disk, but the same results happen copying from one drive (VHD) to another) the copy speed crawl to a 17 MB/s average and it's generally unstable.
I've seen many posts about the opposite behavior, slow network speeds and fast internal copy speeds and I can say that I have VMQ disabled on both my host and guest machines.
What could be the cause of this issue?
Thanks in advance for any help that you may give.
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Hyper-V Guest VM's disappeared after orderly reboot (Not Virus Scanning Issue)
I wanted to perform some long overdue maintenance on a hyper-v host. My setup is two Win2008 R2 Core Hyper-V machines with local disk storage (no san, no virus protection on the hosts). I powered down the Guest OS's, exported them from Virtual1 and copied the to Virtual2. The guest OS came up and worked no problem on Virtual2. Later on in the day I powered down Virtual2. When virtual2 came back up 2 of the 3 guest VM's have disappeared from the management console.
Some items of note...
- There is no virus protection running on the hosts (others seem to have been having an issue with virus scanning).
- Event logs show the orderly shutdown of the guest VM's, event logs then show only 1 of the machines turning back on.
- I see no useful errors in the event logs related to starting the machines back up
- There is a single event log entry for "Hyper-v failed creating a new partition (status 11)". Although, there is plenty of free RAM & Disk space
Anyone have any idea what's going on? I'm kind of baffled as where to even begin looking.
Thanks for any help,
-eric
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Windows Server 2012 - Can occasionally not access second virtual hard drive inside a VM
I run Windows Server 2012 RTM Hyper-V and I can occasionally not access the second virtual hard drive (dynamically expanding VHDX) attached to the VM through the virtual SCSI controller. I can however access the first hard drive that is connected with the virtual IDE controller.
I get the following warning in the event log under “Administrative Events” every 30 seconds when this happens:
- Log Name: System
- Source: Storvsc
- ID: Storvsc
- Message: “Reset to device, \Device\RaidPort0, was issued.”
I get this error once or twice a week and it has caused serious problems since one of the virtual servers that have this problem is a fileserver and the second hard drive contains all the data.
The only quick solution to the problem that I have found is to force the virtual machine to stop using the “Turn Off” feature since a normal shut down does not work (stops at shutting down the event log or similar) and then start the virtual machine again.
You can also wait for about 30 minutes or longer until the disk for some reason becomes accessible again by itself.
My research into this problem shows that:
- Only 2 of the 10 VMs running Windows Server 2012 RTM that I have, have this problem.
- Both these VMs have a second virtual hard drive (dynamically expanding VHDX) that cannot be accessed for 30 minutes or longer.
- Check Disk of the virtual hard drive shows no errors.
- The second hard drive is attached to the virtual SCSI controller.
- I can find no problems at all with the physical storage on the (not related) 4 hosts that I have. The problem exists only in the VMs.
I have now attached the second virtual hard drive to the virtual IDE controller to see if this permanently fixes this problem (i.e. does not happen for at least a week).
Is there something wrong with the virtual SCSI controller or the virtual SCSI device driver that comes with Windows Server 2012 RTM? Does anyone else have this problem?
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Hyper-V and i7 920 on Asus P6T deluxe V2
As I understood, Hyper-V supports only quadcore processor, and i7, although a quadcore, has HT, which appears to be another processor, and so Hyper-V thinks there are 8 processors, it hangs up when installing. I cannot install it.
I had to disable HT on BIOS or set to be only 2 processors on BIOS also, to Hyper-V sees only 4 processors and then I was able to install Hyper-V. I would like some help! Am I right? Is there no workaround? Should I lose performance like this, disabling HT or processors to get Hyper-V installed on a i7 920/Asus P6T Deluxe V2?
Thanks for any help.
James
I had to disable HT on BIOS or set to be only 2 processors on BIOS also, to Hyper-V sees only 4 processors and then I was able to install Hyper-V. I would like some help! Am I right? Is there no workaround? Should I lose performance like this, disabling HT or processors to get Hyper-V installed on a i7 920/Asus P6T Deluxe V2?
Thanks for any help.
James
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Hyper-V Clustered VMs stuck on Pending after host Restart
Hello Gyus,
I have very big Proplem and I really need your support guys, I have Hyper-V cluster with four node hosts, all hosts running windows server 2008 R2 SP1 with all Hyper-V hot fixes installed, I have created 1000 VMs using VMM 2012 Console successfully, the environment is to be used with VDI, VMs has assigned Legacy Network card to boot from network and get Windows 7 OS, everything is working perfectly, however, if I restart one host, the VMs will be moved to other hosts and stuck on Pending for ever, I have then to disable autostart from the cluster console and start the VMs one by one.
Please let me know if there is a solution for this issue, it is illing time and if for some reason one host failed while production, people wont be able to work.
Regards..
Nour
Nour
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How to import hyper-v s2008r2 exported vms in hyper-v s2012r2?
My name is Florin Nicolescu and I am a MCT.
I usually want to promote last MS technology in my classes.
So I want to use s2012 r2 hyper-v as host for my MOC courses VMs which are created by s2008 r2 hyper-v export (ver 1 vms).
I already switched to s2012 hyper-v and things seems to work ok.
Now I want to switch to S2012 r2 Hyper-v.
I saw that support for ver 1 VMs is discontinued in s2012 r2 hyper-v. (thanks to Taylor Brown)
So import in s2012 r2 hyper-v of an exported s2008 r2 hyper-v vm is no longer possible
For now the only workaround I identified is to import the vms in a s2012 hyper-v and copy each Virtual Machine folder with the new content done by import (and it works).
Is any tool or powershell cmdlet that can transform the .exp file obtained by export in s2008 r2 into {guid).xml file and a folder with the same name as the xml as it happens during the import of ver 1 vm in s2008 r2/s2012?
All the best
Florin (Nicolescu)
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Server 2012 Datacenter using Hyper-V VM's
This is probably a silly question, but I'm new to Hyper-V on 2012, so bare with me.
I'm looking for anyone that is using Server 2012 Datacenter using Hyper-V. I've read that Datacenter can do Unlimited VM's under Hyper-V. Would I use the standard DVD that it comes with to create new Server 2012 DC VM's, or do I need to do something special for it? Thanks!
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Problem sharing a folder in Hyper-V Server 2012 for using with MVMC
Hi,
I've installed Hyper-V Server 2012 (Core) yesterday in one computer of my organization to test and see the benefits of changing from VMWare.
Right now I'm making VMWare to Hyper-V migration tests.
I've tested "5nine EasyConverter" to convert Linux and Windows offline VMs. It worked correctly.
I'm trying now the Microsoft Virtual Machine Converter (MVMC) to migrate a Windows Server 2008 R2 virtual machine to my Hyper-V server.
The tool then asks to me for a UNC path of my Hyper-V Server...
I don't have one... and in not one of the installations steps it gave me the option to create.
Even in the sconfig.cmd it has an option to share a folder...
Tried the command below:
net share VMs="C:\Users\Public\Documents\Hyper-V\Virtual disks" /Grant:DOMAIN\Group,FULL
And it gives no error but the help of the "net share" command telling me how to share a folder...
Tried with an user too, not only the group. The only way it worked was to cut off the "/GRANT" part... but then I have no permission to create items on that folder.
Any1?
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Problem reconfiguring network settings
Hi,
I've installed Hyper-V Server 2012 (Core) yesterday to run some tests.
I've changed the IP address of the server using the sconfig.cmd menu.
When I try to get to configuration using that menu again it gives me the error below:
Enter number to select an option: 8
--------------------------------
Network settings
--------------------------------
Available Network Adapters
Index# IP address Description
16 192.168.46.121 Hyper-V Virtual Ethernet Adapter #2
Select Network Adapter Index# (Blank=Cancel): 16
--------------------------------
Network Adapter Settings
--------------------------------
C:\Windows\System32\en-US\sconfig.vbs(696, 21) SWbemObjectEx: Invalid index.
When I run Get-NetAdapter, it gives me:
PS C:\Users\vpereira$> get-netadapter
Name InterfaceDescription
ifIndex Status
---- -------------------- ------- -----
vEthernet (Domain) Hyper-V Virtual Ethernet Adapter #2 16 Up
Ethernet 2 Realtek PCIe GBE Family Controller 13 Up
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Hyper V Integration Services installation Issue
Hello,
I have installed Windows 2012 Datacenter Edition on my Server. Just installed Hyper-V role nothing else
for testing created a VM with Windows 7 32-bit and tried to install VMguest from ISO
When I attempt to install Integration Services I receive a message:
A previous installation of Hyper-V integration services has been detected. Click OK to upgrade tor repair this installation.
I click OK and it runs. Then I receive a error message:
" An error has occurred. One of the update processes returned error code 87 "
While checking services on host i found that only VMMS service is running. rest of the services are not running and when tried to start them manually/automatic then its giving me errors and the services are not restarted. tried multiple restarts as well.
Hyper-V Data Exchange Service
Hyper-V Guest Shutdown Service
Hyper-V Heartbeat Service
Hyper-V Time Synchronization Service
Hyper-V Volume Shadow Copy Requestor
The Hyper-V Data Exchange Service service is starting.
The Hyper-V Data Exchange Service service could not be started.
The service did not report an error.
More help is available by typing NET HELPMSG 3534.
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Slow Data Transfer after create a Virtual Switch in Hyper-V ( Windows Server 2012 )
We have the next scenario;
Configuration:
Two Servers with the following configuration;
- HP blade BL 460c G8
- 32 Gb de RAM.
- 2 processors Intel Xeon E5-2640
- Two SAS disksHP EG0900FBLSK (SAS de 900 Gb) RAID1
- Disk Controller HP Smart Array P220i.
- Eight NICs HP FlexFabric 10 Gb 2-port 554FLB, Driver version 4.2.390.6.
- Enclosure c7000 with two modules HP Virtual Connect Flex-10 10Gb Ethernet
- Windows Server 2012
- Antivirus McAfee VirusScan 8.8 + SP3 + DAT
Scenario 1 (Data Transfer between servers Without Hyper-V)
Scenario 1 (Data Transfer between servers With Hyper-V Rol Configured and Virtual Switch Created)
- Dedicated NIC to VirtualSwitch
Aditional comments;
- The test was execute in differentes ways
- HOST ßà HOST
- HOST ßà GUEST
- GUEST ßà GUEST
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Hyper-v Pass-through Disk format error
2 node cluster hyper-v WIN2K8R2. Have a guest VM WIN2K8R2 that I am trying to attached pass through disk to. Attaching to scsi interface within the vm. I already have an existing 2TB passthru working no issues. The new disk im adding is 4.5TB. It seems to attach ok, but cannot format the disk, just get message "Format did not complete successfully". This is all from Dell shared storage SAN. Windows disk types are Basic mode. Does a pass-through disk need to be converted to a windows dynamic disk type (not referring to fixed vs dynamic vhd's since not using a vhd)?
Also, already using GPT partition.
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storing hyper-V VHDs on external usb drive
I installed hyper-V server today as a dual boot on my win 7 desktop today. I would like to work with hyper-v some more. to learn more about it. I don't really have room on my desktop's drive for the VHDs so I was going to put on a partition I made on
3TB external I have. I had issues with disk management with this drive, after research I ran fsutil, and determined the drive is 512K native sector, and win 7 don't support this. I used 3rd party program to partition the drive. I try to make VHD on the
one partition, but I always get an error saying something to the effect of the device has an I/O error and the VHD can not be created. I have seen some things say that hyper-v don't support USB disks, but most seem to think is ok. so that makes me think has
to be because the sector type, but have had no issue doing similar thing on same disk with VPC, virtual box, VMware. so not sure if hyper-v is different, and has issue or what.
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