The latest Hyper-V service packs, updates, and hotfixes for Windows Server 2012 are listed here in chronological order. Applies To: Windows Server 2012 These updates and hotfixes can help avoid some known issues and may save you a support call. A hotfix is intended to correct only the problem that is described in the article. You should not apply the hotfix if you have not seen the symptoms. Note: A catch 22, do you install it to try preventing the problem from occurring or do you only install it if you see the problem and have an outage? Note: Some updates are required only under certain circumstances, as noted in the table. Note: On this link you can find a tool to help you identify which hotfixes and updates are installed and missing: http://www.hyper-v.nu/archives/hvredevoort/2013/06/updated-windows-server-2012-hyper-v-and-cluster-hotfixes-and-updates/ Active Updates (Not Superseded by a Newer Update):
Superseded Updates (Updates Replaced by a Newer Update, Listed Above):
See also this Knowledge Base article for a list of updates related to Windows Server 2012 Failover Clustering: Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters For previous releases of Hyper-V, reference the following pages: Hyper-V: Update List for Windows Server 2008 R2
And List of updates for Hyper-V in Windows Server 2008
Carsten Siemens edited Revision 32. Comment: Added tag: has comment
Francesco Papini edited Revision 30. Comment: typo: superceded -> superseded
Hans Vredevoort - MVP (Virtual Machine) edited Revision 29. Comment: Added a link showing how to identify installed/missing hotfixes and updates
Frank E Lesniak edited Revision 28. Comment: Added KB 2834026, KB 2832478, KB 2844296, KB 2838988
Frank E Lesniak edited Revision 27. Comment: Added KB 2825135
Frank E Lesniak edited Revision 26. Comment: Added KB 2845533 and KB 8511998
Frank E Lesniak edited Revision 25. Comment: Adding KB2838043
Frank E Lesniak edited Revision 24. Comment: Added KB 2848344 to replace KB 2838669 and KB 2848727
Frank E Lesniak edited Revision 23. Comment: Moved superceded hotfixes to their own table
Frank E Lesniak edited Revision 22. Comment: Moved superceded hotfixes to a separate table
Richard Mueller edited Revision 1. Comment: Removed (en-US) from title
Avoid data corruption with WS2012 Hyper-V cluster connected to a SAN! This bug with ODX and NTFS has caused a lot of pain for me and my team over the past week. Virtual machine files become corrupted during a live migration using ODX. It took down a domain controller and two customer environments. Initial recommendation from MS was to disable ODX. There has been two hotfixes released. Not very trusting of them yet, we opted to disable ODX for now.
support.microsoft.com/.../2796995
We need to update this list, here is another hotfix for WS2012 Hyper-V, "0x000000D1" Stop error on a virtual machine in Windows Server 2012
support.microsoft.com/.../en-us
I totally agree with AustinB.
The mentioned kb2796995 is CRITICAL, the bug causes huge problems.
At the moment it isn't mentioned in the 2012 Failover Cluster fix list either (and it should)
ArdenW edited Revision 10. Comment: Corrected a KB2785638.
Frank E Lesniak edited Revision 18. Comment: Added link to the KB article that lists WS2012 failover cluster hotfixes
Thanks
Frank E Lesniak edited Revision 21. Comment: Re-ordered updates according to their publication dates. Added missing updates