SMB Multichannel

[TMroy]

What is SMB Multichannel?
SMB (Server Message Block) multichannel is a feature in the SMB protocol that enables the simultaneous use of multiple network connections to enhance file transfer performance and reliability between a client and a server. SMB is a network file-sharing protocol commonly used in Windows environments for accessing files, printers, and other shared resources.

SMB multichannel works by utilizing multiple network paths between the client and server to distribute the load and improve data throughput. This feature is particularly beneficial in scenarios where high-speed, fault-tolerant connections are available.

Key features and aspects of SMB multichannel include:

1. Improved Performance: By using multiple network connections, SMB multichannel can increase the overall bandwidth available for file transfers. This is especially useful for large file transfers or situations where a high volume of data needs to be exchanged.

2. Redundancy and Reliability: In addition to performance benefits, SMB multichannel can provide redundancy. If one network connection fails, the protocol can automatically route traffic through the remaining active connections, reducing the likelihood of data transfer interruptions.

3. Automatic Discovery: SMB multichannel supports automatic discovery of available network paths. The client and server can negotiate and establish multiple connections based on the network capabilities without requiring manual configuration.

4. Compatibility: SMB multichannel is designed to be compatible with a variety of network configurations, including scenarios where the client and server have multiple network interfaces or are connected to different subnets.

Implementing SMB multichannel requires support from both the client and server sides. Many modern operating systems, including Windows Server and Windows client versions, support SMB multichannel. It's important to note that for SMB multichannel to be effective, the network infrastructure must also support the aggregation of multiple connections.

In summary, SMB multichannel is a feature that enhances the performance and reliability of file transfers by leveraging multiple network connections between SMB clients and servers.

How do I enable SMB Multichannel?
To enable SMB Multichannel, in TOS 6, it only takes a few simple steps. First, go to the "TOS > Control Panel > Network Services > File Services > SMB > Advanced" settings option. Then, check the "Enable SMB Multichannel" option in the advanced settings. This will enable the SMB Multichannel feature smoothly.

However, please note that implementing the SMB Multichannel feature requires certain network requirements. The same number of multi-port connections need to be established between your TNAS device and server or client. Only when this condition is met can you fully enjoy the convenience and performance improvements brought by SMB Multichannel. SMB Multichannel cannot function when only one port connection is available.