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Posts tagged Hyper-V 3.0
Microsoft Virtual System Migration Service–Service is missing
Mar 5th
When you configure Live Migration settings on a Windows Server 2012 Hyper-V host then you have two options for authentication of Live Migration sessions:
- Use Credential Security Support Provider (CredSSP)
- Use Kerberos
Kerberos is my recommendation to customers. This is more secure than CredSSP. However the Kerberos option requires constrained delegation. If you do not configure constrained delegation, Live Migration of a virtual machine is not possible and you will receive a message that the source server does not have enough permissions to migrate the virtual machine to another host.
Yesterday I was at a customer location and I would like to configure constrained delegation so that I can use Kerberos as the authentication protocol for Live Migration.
I opened Active Directory Users and Computers and browsed to the computer objects representing the Hyper-V hosts. I went into the properties of the computer object and selected the ‘Delegation’ tab (just like the screenshot below).
When I would add the service Microsoft Virtual System Migration Service this option was not available in the list of services.
So I start a discussion with the guy who had installed the servers and asked him how he did the installation of the Hyper-V role. Then he told me that he had enabled the Hyper-V role while the servers were not joined to Active Directory….. Tadaaa that’s the reason why the service Microsoft Virtual System Migration Service was not available!!
To solve this you had to register the Service Principal Name for this service. To do so you had to open a Command Prompt or a PowerShell prompt and run the following commands:
- setspn -S "Microsoft Virtual System Migration Services\Servername" Servername
- setspn -S "Microsoft Virtual System Migration Services\Servername.fqdn" Servername
After running those commands you will see the ‘Microsoft Virtual System Migration Service” in the list of services that you can add for delegation using Kerberos.
Lesson learned: first join the Hyper-V server to Active Directory and after the server is joined you can enable the Hyper-V role.
SMB 3.0 and ODX both appear in EMC VNX mainstream release
Feb 27th
Today I received news that EMC has released its latest version of the VNX Operating System which covers NAS and Block functionality (VNX OE 32/8) and Maintenance Release 1 (MR1). If you are an EMC customer, this important release is now available for download:
For Windows Server 2012 Hyper-V customers this is especially very good news because VNX now supports SMB 3.0 and ODX (Offloaded Data Transfer), apart from some VAAI performance enhancements which are of course more interesting for the other guys. ODX is very similar to Block XCOPY in vSphere.
EMC is probably the first vendor offering SMB 3.0 support in its storage array. Several vendors are still working on adding SMB 3.0 and ODX support so this is important news for acceptance of Microsoft storage technology and Windows Server 2012 Hyper-V. NetApp SMB 3.0 support is targeted at ONTAP 8.2.
The software can be downloaded from PowerLink or http://support.emc.com.
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HP adds Windows Server 2012 Support for several HP ProLiant G6 Servers
Feb 27th
Just in time for a new project for a Dutch municipality, involving HP c7000, HP ProLiant BL460c Gen8, HP StoreVirtual 4000 Storage and Windows Server 2012 Hyper-V, HP released a new firmware ISO and a new HP ProLiant Service Pack. With version 2013.02.0 (19 Feb 2013) HP adds Windows Server 2012 support for the following HP ProLiant servers:
- HP ProLiant BL460c G6 Server .
- HP ProLiant DL380 G6 Server
- HP ProLiant DL360 G6 Server
- HP ProLiant ML350 G6 Server
Click on picture for link to PDF.
Additionally a number of new HP ProLiant network adapters are now supported:
HP Ethernet 1Gb 4-port 366FLR Adapter
HP Ethernet 10Gb 2-port 560M Adapter
HP Ethernet 10Gb 2-port 560FLR SFP+ Adapter
HP Ethernet 10Gb 2-port 530T Adapter
Download HP ProLiant Service Pack 2013.02.0
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W2K12 Hotfix related to Host Level Backup of VMs
Feb 15th
[UPDATE 1/15/2013]: See problems reported after installing this hotfix at end of this forum post. I have opened a line with the product team to find out what is going on
[UPDATE 2/15/2013]: We are now exactly 1 month after I warned you to be very careful with installing http://support.microsoft.com/kb/2799728/en-us as it caused a severe memory leak. If you have followed the forum post mentioned above, you will have gathered that Microsoft has worked feverishly to get on top of the problem. Mike Jacquet who has been very communicative about this issue, has today confirmed that a fix is now code complete, has been fully tested and is only waiting for the KB article to be written.
The memory leak was caused by a fault found in the CSV filter driver (CSVFLT.sys). When the fix arrives (any time now), you can simple install it whether you have applied the hotfix mentioned in this blog or not. The original kb article will be superseded by this one.
[UPDATE 2/17/2013]: The hotfix is available from http://support.microsoft.com/kb/2813630/en-us
[UPDATE 2/18/2013]: If you are still seeing a problem, take a look at this (which is an excerpt from the forum post mentioned above:
“Cluster Shared Volume ‘Volume2′ (‘ClusterStorage Volume 2′) is no longer available on this node because of ‘STATUS_CLUSTER_CSV_AUTO_PAUSE_ERROR(c0130021)’. All I/O will temporarily be queued until a path to the volume is reestablished.
STATUS_CLUSTER_CSV_AUTO_PAUSE_ERROR is generated when csvfs filter attempts to retrieve the Copy On Write bitmap for a snapshot volume that has been cleaned up. This error is most likely occurring on large scale hyper-v deployments and is one of the issues we discover after fixing other scale out problems addressed in the V2 fix. Due to ongoing long haul testing required to be done, we did not want to hold up V2 of the fix that we just released, so the Windows group will release a more compressive V3 patch a little later to address that and other issues found during large scale testing.
For any customers still experiencing the same symptoms as outlined in KB2813630 after installing the fix, please check binary versions on all nodes.
File name File version File size Date
====== ========= ====== ====
Csvflt.sys 6.2.9200.20626 205,824 06-Feb-2013
Clussvc.exe 6.2.9200.20623 7,217,152 07-Feb-2013
Ntfs.sys 6.2.9200.20623 1,933,544 07-Feb-2013
If Binaries are correct on all nodes, please open a support case so we can investigate the issue further.”
SMB 3.0 Storage solutions are on their way!
Feb 1st
EMC announced SMB 3.0 support in their EMC VNXe series! As we can read in the published whitepaper the VNXe series now support the SMB 3.0 protocol that was introduced with Windows 8 and Windows Server 2012.
As of VNXe Operating Environment version 2.4 the SMB 3.0 protocol is enabled by default.
For all the details see this published whitepaper: http://www.emc.com/collateral/white-papers/h11383-vnxe-introduction-wp.pdf
Extension to December 1st of The Great Big Hyper-V Survey of 2012
Nov 20th
As most of our readers know by now is that we are currently asking users of Hyper-V to complete our second edition of The Great Big Hyper-V Survey. Last year we had several hundred people who took part in the survey.
Our original plan was to close the survey after one month, but after some consultation with Aidan Finn and Damian Flynn, we decided to keep the survey open until December 1st.
You Can enter the survey here:
http://kwiksurveys.com/app/rendersurvey.asp?sid=vtqoy6z8kos3imw25636&refer=
Meanwhile I had also offered a free copy of our Microsoft Private Cloud Computing book, which is a great resource on several System Center 2012 products and deployment of Hyper-V in a Private Cloud scenario. Because we have kept you waiting for another month, I am pleased to triple the number of books offered as a prize.
Both Aidan Finn and Damian Flynn were so kind to each offer an extra copy so now we have three Microsoft Private Cloud Computing books available.
So here is another opportunity for you to win one of the three books or enter the survey if you have not been able to do this. We are stressing that this survey is read by Microsoft and we are still able to influence what is important for the next release of Hyper-V. Be our guest!
All you need to do is tweet or blog with a reference to this blog:
http://www.hyper-v.nu/archives/hvredevoort/2012/10/the-great-big-hyper-v-survey-of-2012-has-launched/
The Great Big Hyper-V Survey of 2012 Has Launched
Oct 1st
You can participate in the survey HERE
Just over a year ago, we asked people to answer 80 questions about their intentions and implementations of Hyper-V and System Center in The Great Big Hyper-V Survey of 2011. We learned a lot about how people were using Windows Server 2008 R2 Hyper-V and System Center 2007-2010. Back then, we knew just 2 things about Windows Server 2012 Hyper-V and System Center 2012 was still pre-release. But now, both are generally available, and we want to learn about:
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Have you learned about these new technologies?
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Do you already use them?
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Are you planning on using them?
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How do you plan to use them?
Once again, this is a completely independent survey, run by 3 MVPs (me, Aidan Finn, and Damian Flynn), and Microsoft has had no input or involvement. They might help us promote it – because we do know that our findings were read by them and some of the information was a surprise for them.
The goal of the survey is to learn. We’re all bloggers and speakers and we want to deal with what’s relevant. You’re interested in seeing what other people are doing. We all want to learn from each other and we learned a lot last year.
This is a perfect time to speak – if Windows vNext development is like that of Windows Server 2012, then they’ll be spending the next 10-12 months talking, learning, etc. And the same might happen post-SP1 for System Center 2012.
So we ask you to:
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Respond to the survey and answer all the questions. There are 72 questions. I know, it’s a lot but there’s a lot of stuff to ask about. We’ll only be using complete responses.
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Share the survey with colleagues, customers, on Twitter, Facebook, blogs, LinkedIn, MySpace, or whatever work-related social network you are on. We got an amazing response last year and we want to beat that. The more responses we can use, the more reliable the data will be.
Thank you in advance for taking the 10-15 minutes to respond to the survey.
BTW, we don’t ask for or want any personal data or email addresses. No individual response will be shared. We will only be sharing aggregate information, e.g. X people responded with Y answer.
The survey will close on December 1st 2012
Moving Core Cluster Resources in a Windows Sever 2012 Hyper-V Cluster
Aug 31st
In Windows Server 2008 R2 it was not possible to move the Core Cluster Resources via Cluster Failover Manager (FCM). When performing maintenance on a cluster node, I prefer not only to evacuate all running guests on that node, but also the CSV disks which are owned by that node. If the Cluster Resource Group also resides on the node that is due for maintenance, one must resort to PowerShell to move that group somewhere else.
In a Windows Server 2012 cluster, the PowerShell commands are exactly the same as in Windows Server 2008 R2. If you don’t feel comfortable using PowerShell, you might be pleasantly surprised that this activity can now also be performed from the Failover Cluster Manager.
In FCM, right-click the Clustername, click on More Actions, Move Core Cluster Resources and select either Best Possible Node or select the node of your choice.
Altaro Hyper-V Backup getting ready for Windows Server 2012
Aug 7th
Review of Altaro Hyper-V Backup 3.5
notice: Altaro are giving away two Nexus 7’s to testers of their Hyper-V backup for Windows Server 2012 beta. Check out all the details at the bottom of this blog
Background
The crew at Hyper-V.nu were offered a first glance of Altaro Hyper-V Backup back in May 2011. We agreed to do a review of the beta version of the product. That particular version of the beta did not have support for Cluster Shared Volumes (CSV) and we provided feedback to Altaro about this shortcoming. As our Great Big Hyper-V Survey of 2011 showed, over 94% of users with Hyper-V clusters use CSV. We were pleasantly surprised how quickly Altaro responded by adding support for CSV in one of their next beta’s. So we did a second review testing the backup and recovery of guests living on cluster shared volumes on a Hyper-V R2 SP1 cluster.
Since then Altaro released their RTM of version 2, version 3 and v3.1 which have continued to add functionality, ease and performance. You can find a change log of Altaro Hyper-V Backup here: http://wiki.altaro.com/releases/change-log-for-altaro-hyper-v-backup
One noticeable improvement in version 3 was installation of the product on a cluster. When on a cluster the application could detect each node and configure them during the installation. You only needed to install Altaro Hyper-V Backup on one node and it would then automatically deploy modules on all other cluster nodes. Additionally, the administrator was able to manage all guests across all nodes from a single console. This meant that all backups, restores and configuration could be done from one centralized console. In a cluster environment all guests could be backed up to a single backup target such as a USB drive, a NAS or a disk on a SAN. Even when guests moved around in the cluster, Altaro Hyper-V Backup would take care of that.
By using a technique called ReverseDelta, incremental backups could be made at tremendous speed. The last version introduced ReverseDelta v2 which made incremental backups at least 300% faster.
Version 3 of Altaro Hyper-V backup also dealt with one of CSV’s shortcomings: redirected access during backup operations (backup node claiming ownership of disk and redirecting I/O across the CSV network for all other nodes for that CSV disk). A new scheduling feature called ‘Scheduling Groups’ was introduced which allowed a quick and easy drag & drop of Hyper-V guests to one or more defined Scheduling Groups. It would group guests on the same CSV together in order to decrease time required in redirected access mode. If you are a Data Protection Manager user, you will appreciate this feature as DPM does not do this for you automatically. It is also quite time consuming to even select multiple Hyper-V guests for backup and add them to their Protection Group.
Click on More for the rest of the post
The Experts Conference US 2012
May 24th
VKernel’s Mattias Sundling discusses The Expert Conference event with MVPs Hans Vredevoort and Anil Desai. Topics include highlights of the technical sessions presented by Microsoft, Quest and industry experts as well as updates and highlights of Windows Server 2012 and Hyper-V3 advances.
Youtube: http://www.youtube.com/watch?v=mQF6Gguwb8M
VKernel’s Mattias Sundling discusses The Expert Conference event with MVPs Hans Vredevoort and Anil Desai. Topics include highlights of the technical sessions presented by Microsoft, Quest and industry experts as well as updates and highlights of Windows Server 2012 and Hyper-V3 advances.
http://www.vkernel.com/podreader/items/top-features-hyper-v-3-windows-server-2012
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