在构建hyper-v 2012 r2群集时，有些补丁是至关重要的，这些补丁希望大家都打一下。
https://support.microsoft.com/en-us/kb/2920151
Any Windows Server 2012 R2 Cluster
| Date that update was added | Related Knowledge Base article | Title | Component | Why we recommend this update |
| June 21, 2016 | 3161606 | June 2016 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 | Multiple | This rollup contains an update (3153887) that increases the default values of SameSubnetThreshold, CrossSubnetThreshold and RouteHistoryLength to be more tolerant of brief transient network issues. Available on Windows update or for individual download from Microsoft Update Catalog. To apply this update, you must first install the update 2919355on Windows Server 2012 R2. |
| May 25, 2016 | 3156418 | May 2016 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 | Multiple | This rollup contains a fix (3155768) that resolves an issue in which the Windows Firewall Service may crash or freeze if firewall logging is enabled in Windows Server 2012 R2. As a result, in Windows Server 2012 R2 failover cluster server, Cluster Shared Volumes may go into a Paused State (Event ID 5120) with the error code c000020c - STATUS_CONNECTION_DISCONNECTED. Available on Windows update or for individual download from Microsoft Update Catalog. To apply this update, you must first install the update 2919355on Windows Server 2012 R2. |
| March 23, 2016 | 3130944 | DPM filter driver can't track changes on CSV or VM setting files can't be online in Windows Server 2012 R2 | Clussvc.exe Csvfs.sys | This fix resolves an issue in which System Center Data Protection Manager (DPM) filter driver can't track changed volumes or virtual machine (VM) setting files can't be online in Windows Server 2012 R2. Available on Windows update or for individual download from Microsoft Download Center. Includes fixes from3123593, 3109973, 3090343 and 3076953. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| March 23, 2016 | 3137691 | LBFO Dynamic Teaming mode may drop packets in Windows Server 2012 R2 | mslbfoprovider.sys | This fix resolves an issue in which LBFO Dynamic Teaming mode may drop network packets in Windows Server 2012 R2. In failover cluster scenarios, cluster nodes may be removed from cluster membership due to heartbeat packets not reaching their destination. Available on Windows update or for individual download from Microsoft Download Center. To apply this update, you must first install the update 2919355on Windows Server 2012 R2. |
| March 23, 2016 | 3139896 | Hyper-V guest may freeze when it is running failover cluster service together with shared VHDX in Windows Server 2012 R2 | pvhdparser.sys | This fix resolves an issue in which a Hyper-V guest cluster node(s) may freeze when the virtual machine is running failover cluster service together with shared VHDX in Windows Server 2012 R2. Available on Windows update or for individual download from Microsoft Download Center. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| March 23, 2016 | 3130939 | Nonpaged pool memory leak occurs in a Windows Server 2012 R2-based failover cluster | Svhdxflt.sys | Resolves an issue where a cluster node experiences a memory leak in the svxp tag when using Shared VHDX. Available on Windows update or for individual download from Microsoft Download Center. Includes fix from 3068444. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| January 25, 2016 | 3123538 | All disks in a storage pool can't be brought online in a Windows Server 2012 R2-based cluster | Clusdisk Clusres | The failure of even a single drive in a Persistent Reservation test in a Windows Server 2012 R2-based failover cluster prevents a storage pool from bringing any disks online in the cluster. Available for individual download. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| October 28, 2015 | 3091057 | Cluster validation fails in the "Validate Simultaneous Failover" test in a Windows Server 2012 R2-based failover cluster | Cprepsrv | Changes some timing of the "Validate Simultaneous failover" test to more accurately verify the storage compatibility with the failover cluster. Available for individual download. |
| December 18, 2014 | 3013769 | December 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 | Multiple | An update rollup package that resolves issues and includes performance and reliability improvements. Available from Windows Update and for individual download from Download Center. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| November 18, 2014 | 3000850 | November 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 | Multiple | A cumulative update that includes the security updates and nonsecurity updates including Failover Clustering updates that were released between April 2014 and November 2014. Available from Windows Update and for individual download from Download Center. To apply this update, you must first install the update2919355 on Windows Server 2012 R2. |
| April 8, 2014 | 2919355 | Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014 | Multiple | A cumulative update that includes the security updates and nonsecurity updates including Failover Clustering updates that were released before March 2014. Available from Windows Update and for individual download from Download Center. |
| Dec. 18, 2013 | 976424 | Error code when the kpasswd protocol fails after you perform an authoritative restore: "KDC_ERROR_S_PRINCIPAL_UNKNOWN" | KDCSVC | Enables you to add a Windows Server 2012 failover cluster. Install on every domain controller that is running Windows Server 2008 Service Pack 2 (SP2) or Windows Server 2008 R2. Otherwise, Create Cluster may fail when you try to set the password for the cluster computer object, and you receive a "CreateClusterNameCOIfNotExists (6783): Unable to set password on <ClusterNamegt;" error message. This hotfix is included in Windows Server 2008 R2 Service Pack 1 (SP1). |
Windows Server 2012 R2 Hyper-V Clusters
In addition to the updates listed above, the following Microsoft Knowledge Base articles describe currently available fixes that are highly recommended to be installed on Hyper-V failover clusters. These updates target reliability improvements when backing up virtual machines on Hyper-V failover clusters.
| Date that update was added | Related Knowledge Base article | Title | Component | Why we recommend this update |
| Sept 15, 2015 | 3090343 | Cluster service stops during the VSS backup in a Windows Server 2012 R2 or Windows Server 2012-based Hyper-V cluster | Clussvc.exe | Resolves an issue when multiple VSS backups are in progress, the cluster service may crash because of inconsistent state in the CSV VSS provider. Then, all virtual machines go offline because of the CSV failure. Available for individual download. To apply this update, you must first install the update2919355 on Windows Server 2012 R2. This fix is included in 3123593. |
| Sept 15, 2015 | 3060678 | Snapshots are not deleted after you perform a backup operation by using VSS in Windows Server 2012 R2 | Volsnap.sys | Resolves an issue where unneeded snapshots may not be deleted after a backup is completed. This prevents future backups from failing due to a lack of free space consumed by snapshots. Available for individual download. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| Sept 15, 2015 | 3063283 | "Update to improve the backup of Hyper-V Integrated components in Hyper-V Server 2012 R2 | Hyper-V Integration Services | Increases the time-out to detect the volumes to shadow copy when the Guest OS has multiple volumes. Available for individual download. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |
| July 22, 2015 | 3072380 | Hyper-V cluster unnecessarily recovers the virtual machine resources in Windows Server 2012 R2 | Rdvgpuinfo.dll Vmms.exe | Resolves an issue on a Hyper-V cluster where the heartbeat component times out during a long-running snapshot. The snapshot fails and the VM restarts. Available for individual download. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2. |