In this blog post we will summarize some of the critical and required hotfixes to run a smoother Windows Server 2008 R2 and Windows Server 2012 Hyper-V environment. In this list we will combine both Microsoft Clustering and Hyper-V hotfixes which would fix any recent reported Microsoft Cluster and Hyper-V functionality code bugs. In these hotfixes there are plenty of ones which would also help you to enhance virtual machine and hypervisor performance as well.
| Windows Server 2008 R2 Service Pack 1 – Post |
| Cluster Hotfixes
A LUN that is registered to a cluster shared volume is invisible and inaccessible in a Windows Server 2008 R2 – http://support.microsoft.com/?id=2687646
CAP does not come online in a Windows Server 2008 R2-based failover cluster – http://support.microsoft.com/?id=2685891
Error 1359 and the Cluster service stops in a Windows Server 2008 or Windows Server 2008 R2 Failover Cluster environment – http://support.microsoft.com/?id=2710487
“0x0000003B,” “0x00000027,” and “0x0000007e” Stop errors when a connection to a CSV is lost on a Windows Server 2008 R2-based failover cluster – http://support.microsoft.com/?id=2639032
The List Running Processes test fails when you run the Failover Cluster Validation Wizard on a Windows 7-based or Windows Server 2008 R2-based cluster node – http://support.microsoft.com/?id=2559392
Hyper-V Hotfixes
2519946 Timeout Detection and Recovery (TDR) randomly occurs in a virtual machine that uses the RemoteFX feature in Windows Server 2008 R2 http://support.microsoft.com/?id=2519946
2534356 Some CPU cores are parked while other active CPU cores have a heavy workload in Windows Server 2008 R2
2752183 You cannot migrate a Hyper-V virtual machine from a non-Bulldozer-based computer to a Bulldozer-based computer in Windows Server 2008 R2
2668084 Virtual machine is restored in the Saved state incorrectly on a Hyper-V server that is running Windows Server 2008 R2
2662288 A differencing VHD file that is created by using Microsoft iSCSI Software Target 3.3 becomes corrupted when you mount or attach it in Windows Server 2008 R2 or in Windows 7
2734056 Alt Gr key does not work on a Red Hat Linux virtual machine after you install the Hyper-V role on a computer that is running Windows Server 2008
2636573 FIX: The guest operating system may crash when you perform a live migration of Hyper-V virtual machines in a Windows Server 2008 R2 environment
2587660 Memory dump file is generated very slowly on a Hyper-V virtual machine that uses Dynamic Memory when the Maximum RAM setting is over 4 GB in Windows Server 2008 R2
2665347 You cannot connect to a virtual machine by using the Hyper-V Manager MMC snap-in in Windows Server 2008 R2
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| Windows Server 2012 (RTM) |
| Cluster Hotfixes
Can’t access a resource that is hosted on a Windows Server 2012-based failover cluster – http://support.microsoft.com/kb/2838043
Update that improves cloud service provider resiliency in Windows Server 2012 – http://support.microsoft.com/kb/2870270
The Physical Disk resource for a Cluster Shared Volume may not come online during backup – http://support.microsoft.com/kb/2869923
Failover Cluster Management snap-in crashes after you install update 2750149 on a Windows Server 2012-based failover cluster – http://support.microsoft.com/kb/2803748
Windows 8 and Windows Server 2012 update rollup: November 2012 – http://support.microsoft.com/kb/2770917
Hyper-V Hotfixes
Windows 8 Client and Windows Server 2012 General Availability Update Rollup – http://support.microsoft.com/kb/2756872
Windows 8 and Windows Server 2012 update rollup: February 2013 – http://support.microsoft.com/kb/2795944
Add-TargetPortToMaskingSet PowerShell command fails in Windows Server 2012 – http://support.microsoft.com/kb/2809117
“0x000000D1” Stop error on a virtual machine in Windows Server 2012 – http://support.microsoft.com/kb/2806542
Windows 8 and Windows Server 2012 update rollup: April 2013 – http://support.microsoft.com/kb/2822241
Virtual machines freeze at the “Stopping” state after you shut down the virtual machines in Windows Server 2012 – http://support.microsoft.com/kb/2823643
“0x00000050” Stop error when you try to create a virtual machine or copy a VHD or VHDX file to a SMB share in Windows Server 2012 – http://support.microsoft.com/kb/2834026
Windows 8 and Windows Server 2012 update rollup: May 2013 – http://support.microsoft.com/kb/2836988
Windows RT, Windows 8, and Windows Server 2012 update rollup: June 2013 – http://support.microsoft.com/kb/2845533
Virtual machines crash or take a long time to complete the shutdown process on a Windows Server 2012-based host computer – http://support.microsoft.com/kb/2832478
“The last backup did not complete successfully” error message when you back up a Windows 8 system – http://support.microsoft.com/kb/2851998
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