List of currently available hotfixes for the File Services technologies in Windows Server 2012 and in Windows Server 2012 R2

Summary
This article lists the hotfixes that are currently available for users who have installed the File Services technologies on a Windows Server 2012-based computer or a Windows Server 2012 R2-based computer. File Services provides technologies that help you manage storage, enable file replication, manage shared folders, provide fast file searching, and enable access for UNIX client computers. This article also lists the hotfixes that are currently available for users who use File Services on Windows 8-based computers or Windows 8.1-based computers.
INTRODUCTION
This article contains lists of Microsoft Knowledge Base articles that describe the currently available fixes. The article is divided into two sections. The first section applies to Windows Server 2012 and to Windows 8, and the second section applies to Windows Server 2012 R2 and to Windows 8.1. Each section is divided into subsections for different component drivers: SRV, MRXSMB, and RDBSS. In general, the SRV drivers should be updated on the server or client computer that is hosting the data. The MRXSMB and RDBSS drivers should be updated on the server or client computer that is initiating access to the data. If you are unsure about which component should be updated on which computer, you can update all three component drivers on both the computer that is hosting the data and the computer that is accessing the data.

Windows Server 2012 and Windows 8

NTFS component
Date addedKnowledge Base ArticleTitleWhy we recommend this hotfixHotfix type and availability
 10-Jan-201631212550x00000024" Stop error in FsRtlNotifyFilterReportChange and copy file may fail in Windows
This update contains the most current version of ntfs.sys.
To apply this update, you must have Windows 8 or Windows Server 2012 installed. Available on Windows Update.

SRV component
Date addedKnowledge Base ArticleTitleWhy we recommend this hotfixHotfix type and availability
 10-May-20163161561MS16-075 and MS16-076: Description of the security update for Windows Netlogon and SMB Server: June 14, 2016 
This hotfix contains the most current version of srvnet.sys, srv2.sys.To apply this security update, you must have Windows 8, or Windows Server 2012 installed.
11-Aug-20142984005September 2014 update rollup for Windows RT, Windows 8, and Windows Server 2012
This update rollup contains the most current version of srvsvc.dll.To apply this update rollup, you must have Windows 8, or Windows Server 2012 installed.

MRXSMB component
Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
03-June-20163156416May 2016 update rollup for Windows Server 2012This update rollup contains the most current version of mrxsmb.sys, mrxsmb10.sys, and mrxsmb20.sysTo apply this update rollup, you must be running Windows Server 2012. Available on Windows Update.

RDBSS component
Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
 29-Jan-2016 31379160x00000027" Stop error and unexpected restart in Windows Server 2012

This update contains the most current version of rdbss.sys.To apply this update, you must be running Windows 8 or Windows Server 2012. Available on Windows Update.

Windows Server 2012 R2 and Windows 8.1

NTFS component
Date addedKnowledge Base ArticleTitleWhy we recommend this hotfixHotfix type and availability
-Jan-2016-Jan-201631212550x00000024" Stop error in FsRtlNotifyFilterReportChange and copy file may fail in Windows
This update contains the most current version of ntfs.sys.To apply this update, you must be running Windows 8.1 or Windows Server 2012 R2 and April 2014 Update 2919355. Available from Windows Update.

SRV component
Date addedKnowledge Base ArticleTitleWhy we recommend this hotfixHotfix type and availability
 13-May-20163161561MS16-075 and MS16-076: Description of the security update for Windows Netlogon and SMB Server: June 14, 2016
This hotfix contains the most current version of srv.sys, srv2.sys and srvnet.sys.To apply this security update, you must be running Windows 8.1 or Windows Server 2012 R2 and April 2014 Update 2919355. Available for individual download.

MRXSMB component
Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
03-Jun-20163156418May 2016 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2

This update rollup contains the most current version of mrxsmb.sys, mrxsmb10.sys, and mrxsmb20.sys.To apply this update rollup, you must be running Windows 8.1 or Windows Server 2012 R2 and April 2014 Update 2919355. Available from Windows Update.

RDBSS component
Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
03-June-20163156418May 2016 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
This update rollup contains the most current version of rdbss.sysTo apply this update rollup, you must be running Windows 8.1 or Windows Server 2012 R2 and April 2014 Update 2919355. Available from Windows Update.
More information

Registry keys that have been introduced with hotfixes or security updates

Windows Server 2012 and R2
DateKnowledge Base articleRegistry key
06/10/20132848322HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters\AsynchronousCredits
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanWorkstation\Parameters\ExtendedSessTimeout

Services for Network File System (NFS) in a Windows Server 2012 environment

NFS Server components Windows Server 2012 and Windows 8.0

Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
03-Jun-20163130902Stop error 0x9E and failover cluster can't come online in Windows Server 2012This update contains the most current version of Nfssvc.exe, Nfssvr.sysand Msnfsflt.sys.To apply this update, you must be running Windows Server 2012. Available for individual download.

NFS Client components Windows Server 2012 and Windows 8.0

Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
03-Jun-20163093803Error 0x800704C9 occurs when you try to copy file to NFS share in Windows 8
This hotfix contains the most current version of Nfsclnt.exe, Nfsrdr.sys and Nfsnp.dll.To apply this hotfix, you must be running Windows 8 or Windows Server 2012. Available for individual download.
03-Jun-20163042826POSIX subsystem crashes when you try to create a Telnet session in Windows
This hotfix contains the most current version of Psxdll.dll, Psxdllsvr.dll, Psxss.exe, Posix.exe. To apply this hotfix, you must be running Windows 8 or Windows Server 2012. Available for individual download.

Services for Network File System (NFS) in a Windows Server 2012 R2 environment

NFS Server components Windows Server 2012 R2 and Windows 8.1
Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
03-June-20163094202Directory listing fails when sharing violations occur on Windows Server 2012 R2 or Windows Server 2012-based NFS server
This hotfix contains the most current version of Nfssvc.exe and Nfssvr.sys
and Msnfsflt.sys.
To apply this hotfix, you must be running Windows 8.1 or Windows Server 2012 R2 and April 2014 Update 2919355. Available for individual download.

This hotfix contains the most current version of Rpcxdr.sys.
NFS Client components Windows Server 2012 R2 and Windows 8.1
Date addedKnowledge Base articleTitleWhy we recommend this hotfixHotfix type and availability
07-Jan-20153025097"Invalid device" error when you try to rename a file on a Network File System client that is running Windows 8, Windows 8.1, Windows Server 2012, or Windows Server 2012 R2
This hotfix contains the most current version of Nfsclnt.exe,Nfsrdr.sys and Nfsnp.dll.To apply this hotfix, you must be running Windows 8.1 or Windows Server 2012 R2 and April 2014 Update 2919355. Available for individual download.

The Server Message Block (SMB) model consists of two entities: the client and the server.

On the client, applications perform system calls by requesting operations on remote files. These requests are handled by the redirector subsystem (rdbss.sys) and by the SMB mini-redirector (mrxsmb.sys), both of which translate the requests into SMB protocol sessions and requests over TCP/IP. Starting with Windows Vista, the SMB 2.0 protocol is supported. The mrxsmb10.sys driver handles legacy SMB traffic, and the mrxsmb20.sys driver handles SMB 2.0 and SMB 3.0 traffic.

On the server, SMB connections are accepted, and SMB requests are processed as local file system operations through NTFS and the local storage stack. The srv.sys driver handles legacy SMB traffic, and the srv2.sys driver handles SMB 2.0 traffic. The srvnet.sys component implements the interface between networking and the file server for both SMB protocols. File system metadata and content can be cached in memory via the system cache in the kernel (ntoskrnl.exe).

Figure 1 provides an overview of the different layers through which a user request on a client computer must go to perform file operations over the network on a remote SMB file server by using SMB 2.0.

Figure 1. Windows SMB components

Services for Network File System (NFS) in a Windows Server 2012 environment

Services for NFS includes the following components:
  • Server for NFS

    This component corresponds to the server-side implementation of the NFS file-sharing protocol. Server for NFS enables a computer that is running Windows Server 2012 or Windows Server 2012 R2 to act as a file server for UNIX-based client computers.
  • Client for NFS

    This component corresponds to the client-side implementation of the NFS file-sharing protocol. Client for NFS enables a Windows-based computer that is running Windows Server 2012 (or Windows 8) to access files that are stored on a UNIX-based NFS server.
Windows Server 2012 includes both the Server for NFS and Client for NFS components. However, Windows 8 includes only Client for NFS.

For more information and a step-by-step guide for the services for NFS, go to the following Microsoft website:

Microsoft Services for NFS provides a file-sharing solution for enterprises that have a mixed Windows and UNIX environment. This communication model consists of client computers and a server. Applications on the client request files that are located on the server through the redirector (Rdbss.sys) and NFS mini-redirector (Nfsrdr.sys). The mini-redirector uses the NFS protocol to send its request through TCP/IP. The server receives multiple requests from the clients through TCP/IP and routes the requests to the local file system (Ntfs.sys), which accesses the storage stack.

Figure 2 shows the communication model for NFS.

Figure 2. NFS Communications

NFS communication model
References
For more information about currently available hotfixes for the File Services technologies in Windows Server 2008 and Windows Server 2008 R2, click the following article number to go to the article in the Microsoft Knowledge Base:

2473205 List of currently available hotfixes for the File Services technologies in Windows Server 2008 and in Windows Server 2008 R2

For more information about performance tuning, see the "Tuning parameters for SMB file servers" section of the following MSDN article:

File Sharing SMB share lanmanserver lanmanworkstation SMBv1 SMBv2 SMBv3 CIFS SMB1 SMB2 SMB3
Properties

Article ID: 2899011 - Last Review: 06/27/2016 17:58:00 - Revision: 42.0

Windows Server 2012 Datacenter, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 R2 Standard, Windows Server 2012 Standard, Windows 8 Enterprise, Windows 8 Pro, Windows 8.1 Enterprise, Windows 8.1 Pro

  • KB2899011
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