Dell VNX5800 VNX Series: Introduction to SMB 3.0 Support - Page 6

• Volume Shadow Copy Service (VSS) - A Windows service and architecture that coordinates various components to create consistent point-in-time copies of data called shadow copies. Concepts SMB version and negotiation The SMB protocol follows the client-server model; the protocol level is negotiated by the client request and server response when establishing a new SMB connection. • CIFS - Windows NT 4.0 • SMB 1.0 - Windows 2000, Windows XP, Windows Server 2003, and Windows Server 2003 R2 • SMB 2.0 - Windows Vista (SP1 or later) and Windows Server 2008 • SMB 2.1 - Windows 7and Windows Server 2008 R2 • SMB 3.0 - Windows 8 and Windows Server 2012 • SMB 3.02 - Windows 8.1 and Windows Server 2012 R2 Before establishing a session between the client and server, a common SMB dialect must be negotiated. As shown in Table 1, the common dialect depends on the SMB version supported by both the client and DM. Table 1 SMB dialect used between Client and DM Client / DM SMB 3.02 SMB 3.0 SMB 3.02 SMB 3.02 SMB 3.0 SMB 3.0 SMB 3.0 SMB 3.0 SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 1.0 SMB 1.0 SMB 1.0 SMB 1.0 SMB 1.0 Note: SMB 3.0 leverages the SMB 2 protocol and the same SMB 2 packet formats are utilized by SMB 3.0. SMB 3.0 was originally known as SMB 2.2. For more information on SMB 2.x versions and negotiations, refer to the Microsoft TechNet Website at http://technet.microsoft.com. EMC VNX Series: Introduction to SMB 3.0 Support 6