{"id":1073,"date":"2012-04-19T14:06:00","date_gmt":"2012-04-19T14:06:00","guid":{"rendered":"https:\/\/blogs.technet.microsoft.com\/windowsserver\/2012\/04\/19\/smb-2-2-is-now-smb-3-0\/"},"modified":"2024-03-08T10:28:05","modified_gmt":"2024-03-08T18:28:05","slug":"smb-2-2-is-now-smb-3-0","status":"publish","type":"post","link":"https:\/\/www.microsoft.com\/en-us\/windows-server\/blog\/2012\/04\/19\/smb-2-2-is-now-smb-3-0\/","title":{"rendered":"SMB 2.2 is now SMB 3.0"},"content":{"rendered":"<p><em>We are at an exciting stage of the release.\u00a0 Beta has been out for some time now and we\u2019ve gotten lots of great feedback.\u00a0 As we progress towards releasing the next version of Windows, many of the details are getting decided and communicated.\u00a0 This has been a big week for naming.\u00a0 On Monday, Brandon LeBlanc announced the <a title=\"official product names for editions \" href=\"http:\/\/windowsteamblog.com\/windows\/b\/bloggingwindows\/archive\/2012\/04\/16\/announcing-the-windows-8-editions.aspx\" target=\"_blank\" rel=\"noopener\">official product names for editions<\/a> of Windows on the Windows Team blog.\u00a0 During that day\u2019s MMS keynote, Brad Anderson announced the official name for Server:\u00a0 Windows Server 2012.\u00a0 In today\u2019s blog the SMB team announces their official name: SMB 3.0.\u00a0 I don\u2019t think this will come as much of a surprise to anyone.\u00a0 The team has delivered an amazing amount of innovation in this release.\u00a0 If you haven\u2019t already downloaded the beta, I think you\u2019ll want to after reading some of the details in this blog.<\/em><\/p>\n<p>Last September at the \/\/Build Conference, we announced SMB 2.2, an update to our Server Message Block protocol used by default for file sharing in Windows. Since then we have actively engaged with the community through various channels and have spoken in detail about all the great work that has gone into the release and why we think this is truly a game changer. Windows Server 2012 provides a vast set of new SMB features with an updated SMB protocol that greatly enhance the reliability, availability, manageability, and performance of file servers.<\/p>\n<p>Looking back at the amount of changes that have gone into this release \u2013 the lines of code written, array of features introduced, new scenarios we have enabled, work we have done with our partners, a minor revision doesn\u2019t do justice the work that has gone in. So moving on, SMB 2.2 is SMB 3.0!<\/p>\n<p>Regular followers of this blog have seen detailed posts on various SMB improvements over the last few months. To summarize, the following are some of the key new functionalities available with Windows Server 2012 SMB 3.0:<\/p>\n<ul>\n<li><strong>SMB for Server Applications<\/strong> \u2013 Many of the new SMB features are specifically designed for server applications that store the data on file shares\u2014for example, database applications such as Microsoft SQL Server or virtualization software such as Hyper-V. This allows applications to take advantage of advances in storage management, performance, reliability, and cost efficiency that come with SMB to deliver an application storage solution that rivals traditional Fibre Channel storage solutions in features and capabilities, but remains easier to provision and less expensive to implement.<\/li>\n<li><strong>Active file sharing with SMB Scale Out<\/strong> \u2013 Enables customers to scale share bandwidth by adding cluster nodes, as the maximum share bandwidth is the aggregate bandwidth of all file server nodes and not restricted to the bandwidth of a single cluster node as in previous versions. Scale-out file shares also makes it much easier to manage a file server cluster, as it is no longer necessary to create multiple clustered file servers, each with separate cluster disks, to take advantage of all nodes in a cluster. Further, the administrator can transparently redirect SMB client connections to a different file server cluster node to better balance the cluster load.<\/li>\n<li><strong>Scalable, fast, and efficient storage access with SMB Direct<\/strong> \u2013 SMB Direct (SMB over Remote Direct Memory Access (RDMA)) is a new transport protocol for SMB in Windows Server 2012. It enables direct memory-to-memory data transfers between servers, with minimal CPU utilization and low latency, using standard RDMA-capable network adapters (iWARP, InfiniBand, and RoCE). Any application which accesses files over SMB can transparently benefit from SMB Direct. Minimizing the CPU cost of file I\/O means application servers can handle larger compute workloads with the saved CPU cycles (for example, Hyper-V can host more virtual machines).<\/li>\n<li><strong>Fast data transfers and network fault tolerance with SMB Multichannel<\/strong> \u2013 Given that customers can now store server application data on remote SMB file shares, SMB was enhanced to improve network performance and reliability. SMB Multichannel takes advantage of multiple network interfaces to provide both high performance through bandwidth aggregation, and network fault tolerance through the use of multiple network paths to data on an SMB share.<\/li>\n<li><strong>Transparent Failover and node fault tolerance with SMB<\/strong> \u2013 Supporting business critical server application workloads requires the connection to the storage back end to be continuously available. The new SMB server and client cooperate to make failover of file server cluster nodes transparent to applications, for all file operations, and for both planned cluster resource moves and unplanned node failures.<\/li>\n<li><strong>VSS for SMB file shares<\/strong> \u2013 VSS for SMB file shares extends the Windows Volume ShadowCopy Service infrastructure to enable application-consistent shadow copies of server application data stored on SMB file shares, for backup and restore purposes. In addition, VSS for SMB file shares enables backup applications to read the backup data directly from a shadow copy file share rather than involving the application server in the data transfer. Because this feature leverages the existing VSS infrastructure, it is easy to integrate with existing VSS-aware backup software and VSS-aware applications like Hyper-V.<\/li>\n<li><strong>Secure data transfer with SMB encryption<\/strong> \u2013 SMB Encryption protects data in-flight from eavesdropping and tampering attacks. Deployment is as simple as checking a box,\u00a0 with no additional setup requirements. This becomes more critical as mobile workers access data in centralized remote locations from unsecured networks. SMB Encryption is beneficial even within a secured corporate network if the data being accessed is sensitive..<\/li>\n<li><strong>Faster access to documents over high latency networks with SMB Directory Leasing<\/strong> \u2013 SMB Directory Leasing reduces the latency seen by branch office users accessing files over high latency WAN networks. This is accomplished by enabling the client to cache directory and file meta-data in a consistent manner for longer periods, thereby reducing the associated round-trips to fetch the metadata from the server. This results in faster application response times for branch office users<\/li>\n<li><strong>SMB Ecosystem<\/strong> \u2013 A critical aspect of Windows Server 2012 development is the partnership we have\u00a0 established with vendors to ship SMB 3.0 capable systems. We have been working closely with several server vendors and open source partners over the past year, by proactively providing extensive protocol documentation and numerous open \u201cplugfest\u201d events provide opportunities for test and feedback. Finally, and most importantly, the SMB ecosystem now reaches all the way to key server applications such as SQL Server and Hyper-V to ensure that SMB 3.0 capabilities are fully leveraged all the way through the stack, and across the multivendor network.<\/li>\n<\/ul>\n<p>With so many new features, SMB offers a richer set of capabilities that, when combined, provide organizations with a robust high performance storage alternative to traditional Fibre Channel storage solutions at a much more affordable cost point from both an acquisition and operational perspective.<\/p>\n<p>For additional reading materials related to SMB, there is a ton of content on TechNet:<\/p>\n<p style=\"padding-left: 60px\">&#8211; <a title=\"Windows Server &quot;8&quot; Beta SMB Overview\" href=\"http:\/\/technet.microsoft.com\/en-us\/library\/hh831795.aspx\" target=\"_blank\" rel=\"noopener\">Windows Server \u201c8\u201d Beta SMB Overview<br \/>\n<\/a>&#8211;\u00a0<a title=\"High-Performance, Continuously Available File Share Storage for Server Applications Technical Preview\" href=\"http:\/\/technet.microsoft.com\/en-us\/library\/hh831399.aspx\" target=\"_blank\" rel=\"noopener\">High-Performance, Continuously Available File Share Storage for Server Applications Technical Preview<br \/>\n<\/a>&#8211;\u00a0<a title=\"Deploying Fast and Efficient File Servers for Server Applications\" href=\"http:\/\/technet.microsoft.com\/en-us\/library\/hh831723.aspx\" target=\"_blank\" rel=\"noopener\">Deploying Fast and Efficient File Servers for Server Applications<br \/>\n<\/a>&#8211;\u00a0<a title=\" Building Your Cloud Infrastructure: Converged Data Center with File Server Storage\" href=\"http:\/\/technet.microsoft.com\/en-us\/library\/hh831738.aspx\" target=\"_blank\" rel=\"noopener\">Building Your Cloud Infrastructure: Converged Data Center with File Server Storage<\/a><\/p>\n<p>Jose Barreto and Claus Joergensen, Program Managers in the SMB team, have written a great <a title=\"blog\" href=\"\/b\/windowsserver\/archive\/2012\/03\/15\/windows-server-8-taking-server-application-storage-to-windows-file-shares.aspx\">blog<\/a> on taking server application storage to Windows file shares. It\u2019s a great read and is highly recommended.<\/p>\n<p>We are really excited about Windows Server 2012 and can\u2019t wait for you to start using the product. We definitely hope you have as much fun using the product as we had building it. In the meantime, as you know, the <a title=\"Beta\" href=\"http:\/\/www.microsoft.com\/en-us\/server-cloud\/windows-server\/v8-default.aspx\" target=\"_blank\" rel=\"noopener\">Beta<\/a> has been out for a while now and we would love for you to use it and let us know what you think.<\/p>\n<p>SMB 3.0 Team.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are at an exciting stage of the release.\u00a0 Beta has been out for some time now and we\u2019ve gotten lots of great feedback.\u00a0 As we progress towards releasing the next version of Windows, many of the details are getting decided and communicated.\u00a0 This has been a big week for naming.<\/p>\n","protected":false},"author":742,"featured_media":20670,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"msxcm_post_with_no_image":false,"ep_exclude_from_search":false,"_classifai_error":"","_classifai_text_to_speech_error":"","footnotes":""},"post_tag":[23,386],"product":[],"content-type":[964],"solution":[1015],"coauthors":[943],"class_list":["post-1073","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-windows-server","tag-windows-server-2012","content-type-updates","solution-storage","review-flag-1593580427-982","review-flag-2-1593580436-936","review-flag-3-1593580441-66","review-flag-8-1593580467-311","review-flag-integ-1593580287-252","review-flag-new-1593580246-692","review-flag-partn-1593580278-747"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SMB 2.2 is now SMB 3.0 | Microsoft 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