What is the default negotiated SMB version with various versions of Data ONTAP and Windows clients?
Applies to
- Clustered Data ONTAP 8
- Data ONTAP 8 7-Mode
- ONTAP 9
- SMB
- SMB 2
Answer
- The Server Message Block (SMB) protocol version used for file-sharing operation is determined during the negotiation process.
- It depends on the highest version supported by both the clients and the servers.
- This table describes the protocol used with the default server/client configuration:
Protocol Version | First Client Version | First Server Version | Data ONTAP Version |
---|---|---|---|
SMB 1.0 | Windows XP | Windows Server 2003 | All |
SMB 2.0 | Windows Vista | Windows Server 2008 | 7.3.1 and later; 8.x |
SMB 2.1 | Windows 7 | Windows Server 2008R2 |
8.1 clustered Data ONTAP; 8.1.1 7-Mode |
SMB 3.0 | Windows 8 | Windows Server 2012 | clustered Data ONTAP 8.2 and later |
SMB 3.1 | Windows 10 | Windows Server 2016 | ONTAP 9 |
Note: For more information, refer the Microsoft documentation on the support of the SMB 2 protocol on various Windows Operating System versions.
Additional Information
- Supported SMB versions and functionality
- TR-3740: SMB 2—Next-Generation CIFS Protocol in Data ONTAP
- For the updated and latest CIFS compatibility matrix, see the IMT Website