Post-SP1 hotfixes recommended for W2K8R2 Hyper-V hosts

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Here is a quick round-up of post-SP1 hotfixes that it is good to know about, if you are running Hyper-V – I have summarized the file(s) updated and their version details for quick reference so you can see if they are applicable for you.

 

KB2263829
The network connection of a running Hyper-V virtual machine may be lost under heavy outgoing network traffic on a computer that is running Windows Server 2008 R2 SP1

Files updated:
Hvax64.exe 6.1.7601.17579 (SP1 GDR)
Hvboot.sys 6.1.7601.17579 (SP1 GDR)
Hvix64.exe 6.1.7601.17579 (SP1 GDR)
Hvax64.exe 6.1.7601.21683 (SP1 LDR)
Hvboot.sys 6.1.7601.21683 (SP1 LDR)
Hvix64.exe 6.1.7601.21683 (SP1 LDR)

 

KB2485986
An update is available for Hyper-V Best Practices Analyzer for Windows Server 2008 R2

Files updated:
Hyper-v_model.ps1 (dated 2011-01-13)

 

KB2494016
Stop error 0x0000007a occurs on a virtual machine that is running on a Windows Server 2008 R2-based failover cluster with a cluster shared volume, and the state of the CSV is switched to redirected access

Files updated:
Csvfilter.sys 6.1.7601.21639 (SP1 LDR)

 

KB2494162
The Cluster service stops unexpectedly on a Windows Server 2008 R2 failover cluster node when you perform multiple backup operations in parallel on a cluster shared volume

Files updated:
Clussvc.exe 6.1.7601.21639 (SP1 LDR)

 

KB2496089
The Hyper-V Virtual Machine Management service stops responding intermittently when the service is stopped in Windows Server 2008 R2

Files updated:
Vmms.exe 6.1.7601.21642 (SP1 LDR)

 

Also, the Microsoft iSCSI Software Target is now a free download - see this Virtualization Blog post for details.