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Recommended hotfixes and updates for Windows Server 2012 R2-based failover clusters

Summary
This article describes the hotfixes that are currently available for Windows Server 2012 R2-based failover clusters and highly recommended to be installed on each server of a failover clusters. Failover Cluster Management enables multiple servers to provide a high availability of server roles. Failover Cluster Management is frequently used for file services, virtual machines, database applications, and mail applications.

Important The process for installing service packs and hotfixes for Windows Server 2012 R2 differs from the process for earlier versions of Windows Server. In Windows Server 2012 R2, you can use the Cluster-Aware Updating (CAU) feature. CAU automates the software-updating process on clustered servers and maintains availability. For more information, see Cluster-Aware Updating Overview.

For information about how to manually drain cluster nodes for maintenance, see Draining Nodes for Planned Maintenance with Windows Server 2012.
More information
The following Microsoft Knowledge Base articles describe the currently available fixes that are highly recommended to be installed on all failover clusters. Most of the updates apply to computers that are running Windows Server 2012 R2. Some updates, such as KB 976424, may be needed on computers that are running Windows Server 2008 R2 or Windows Server 2008 if those operating systems are present in the environment.

These updates are considered to be important to install to ensure the highest level of reliability.

Any Windows Server 2012 R2 Cluster

Date that update was addedRelated Knowledge Base articleTitleComponentWhy we recommend this update
January 25, 20163123538All disks in a storage pool can't be brought online in a Windows Server 2012 R2-based clusterClusdisk ClusresThe 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.
January 25, 20163109973Backup fails with a "File Not Found” error on a Windows Server 2012 R2 clusterClussvcThis fix resolves a "File Not Found" error when you back up many virtual machines (VMs) across multiple Cluster Shared Volumes (CSVs). Available for individual download. Includes fix from 3090343. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2.
October 28, 20153091057Cluster validation fails in the "Validate Simultaneous Failover" test in a Windows Server 2012 R2-based failover clusterCprepsrvChanges some timing of the "Validate Simultaneous failover" test to more accurately verify the storage compatibility with the failover cluster. Available for individual download.
September 24, 20153076953Cluster services go offline when there's a connectivity issue in Windows Server 2012 R2 or Windows Server 2012ClussvcPrevents a multisite cluster from losing quorum in all sites when there are WAN connectivity issues such as network packet loss between datacenters. Available for individual download.
July 22, 20153068445Virtual machines that host on Windows Server 2012 R2 may crash or restart unexpectedlyCsvfs.sys Resolves an issue where a deadlock or Stop 0x9E occurs on a cluster node when there is a lot of network (SMB) I/O requests to large files (1 TB or more). Includes the fix from 3044457. Available for individual download. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2.
July 22, 20153068444"An unrecoverable failure occurred inside the filter manager" error on a failover cluster node that hosts shared VHDx filesSvhdxflt.sys Resolves an issue where a cluster node experiences a Stop 0xF5 FLTMGR_FILE_SYSTEM when using Shared VHDX. Available for individual download. To apply this update, you must first install the update 2919355 on Windows Server 2012 R2.
December 18, 20143013769December 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2Multiple 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, 20143000850November 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 update 2919355 on Windows Server 2012 R2.
April 8, 20142919355Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014MultipleA 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, 2013976424Error code when the kpasswd protocol fails after you perform an authoritative restore: "KDC_ERROR_S_PRINCIPAL_UNKNOWN"
KDCSVCEnables 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 <ClusterName$>" 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 addedRelated Knowledge Base articleTitleComponentWhy we recommend this update
Sept 15, 20153090343Cluster service stops during the VSS backup in a Windows Server 2012 R2-based Hyper-V clusterClussvc.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 update 2919355 on Windows Server 2012 R2. This fix is included in 3109973.
Sept 15, 20153060678Snapshots are not deleted after you perform a backup operation by using VSS in Windows Server 2012 R2Volsnap.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, 20153063283"Update to improve the backup of Hyper-V Integrated components in Hyper-V Server 2012 R2Hyper-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, 20153072380Hyper-V cluster unnecessarily recovers the virtual machine resources in Windows Server 2012 R2Rdvgpuinfo.dll Vmms.exeResolves 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.


References
For more information about the recommended hotfixes and updates for Windows Server 2012-based Hyper-V servers and Windows Server 2012-based Failover Clusters, see:

2784261 Recommended hotfixes and updates for Windows Server 2012-based Failover Clusters
Properties

Article ID: 2920151 - Last Review: 01/25/2016 21:14:00 - Revision: 39.0

  • Windows Server 2012 R2 Datacenter
  • Windows Server 2012 R2 Standard
  • KB2920151
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