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- SMB dialects: Over time, SMB has evolved into different versions, known as dialects. Each dialect improves upon the previous one in terms of performance, security, and functionality. SMB1 (or CIFS) is the oldest and least secure, while SMB2 and SMB3 introduce significant improvements and are widely used today.
wirexsystems.com/resource/protocols/smbWhat Is SMB? Understanding Network Protocols By WireX Systems
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Jun 8, 2020 · SMB (Server Message Block) is a critical network protocol that enables file and printer sharing services on Windows networks. Over the years, SMB has evolved through three major versions – SMBv1, SMBv2, and SMBv3 – each bringing significant improvements in performance, scalability, and security.
- Overview
- Feature description
- Practical applications
- New and changed functionality
- Features added in SMB 3.02 with Windows Server 2012 R2 and Windows 8.1
- Hardware requirements
- More information
This topic describes the SMB 3 feature in Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, and Windows Server 2012—practical uses for the feature, the most significant new or updated functionality in this version compared to previous versions, and the hardware requirements. SMB is also a fabric protocol used by software-defined dat...
The Server Message Block (SMB) protocol is a network file sharing protocol that allows applications on a computer to read and write to files and to request services from server programs in a computer network. The SMB protocol can be used on top of its TCP/IP protocol or other network protocols. Using the SMB protocol, an application (or the user of...
This section discusses some new practical ways to use the new SMB 3.0 protocol.
•File storage for virtualization (Hyper-V™ over SMB). Hyper-V can store virtual machine files, such as configuration, Virtual hard disk (VHD) files, and snapshots, in file shares over the SMB 3.0 protocol. This can be used for both stand-alone file servers and clustered file servers that use Hyper-V together with shared file storage for the cluster.
•Microsoft SQL Server over SMB. SQL Server can store user database files on SMB file shares. Currently, this is supported with SQL Server 2008 R2 for stand-alone SQL servers. Upcoming versions of SQL Server will add support for clustered SQL servers and system databases.
•Traditional storage for end-user data. The SMB 3.0 protocol provides enhancements to the Information Worker (or client) workloads. These enhancements include reducing the application latencies experienced by branch office users when accessing data over wide area networks (WAN) and protecting data from eavesdropping attacks.
The following sections describe functionality that was added in SMB 3 and subsequent updates.
For more information on new and changed SMB functionality in Windows Server 2012 R2, see What's New in SMB in Windows Server.
SMB Transparent Failover has the following requirements:
•A failover cluster running Windows Server 2012 or Windows Server 2016 with at least two nodes configured. The cluster must pass the cluster validation tests included in the validation wizard.
•File shares must be created with the Continuous Availability (CA) property, which is the default.
•File shares must be created on CSV volume paths to attain SMB Scale-Out.
•Client computers must be running Windows® 8 or Windows Server 2012, both of which include the updated SMB client that supports continuous availability.
SMB Multichannel has the following requirements:
The following list provides additional resources on the web about SMB and related technologies in Windows Server 2012 R2, Windows Server 2012, and Windows Server 2016.
•Storage in Windows Server
•Scale-Out File Server for Application Data
•Improve Performance of a File Server with SMB Direct
•Deploy Hyper-V over SMB
•Deploy SMB Multichannel
SMB has evolved through multiple versions, referred to as dialects, with the most widely used versions being SMB1 (also known as CIFS – Common Internet File System), SMB2, and SMB3. Each dialect improves upon its predecessor in terms of performance, security, and functionality.
Apr 19, 2022 · The SMB protocol has evolved over time, and its various versions are commonly referred to as dialects. Microsoft continues to work hard to improve SMB with each new version of Windows. The following table shows the SMB dialects used in various Windows versions:
Microsoft Windows operating systems (OSes) since Windows 95 have included client and server SMB protocol support. The Linux OS and macOS also provide built-in support for SMB. In addition, Unix -based systems can use Samba to facilitate SMB access to file and print services.
There are a few different versions – SMBv1, SMBv2, and SMBv3 – each with their own unique capabilities and security profiles. In this comprehensive guide, I‘ll give you the complete low-down on detecting which SMB editions you have enabled, turning them on or off, and optimizing your configurations for performance and safety.
Feb 13, 2024 · The evolution of SMB can be segmented into its major versions: SMB 1.0 (1996): Introduced by Microsoft, laying the groundwork for network file and printer sharing. SMB 2.0 (2006): A major overhaul that improved performance, reduced complexity, and enhanced security.
