There are several file-transferring and interprocess communication scenarios for which the SMB 2.0 protocol is more suited than the original SMB protocol.
According to the Microsoft SMB 2.0 protocol specification, such scenarios might include those that have the following requirements:
- More scalability with regard to simultaneously open files, number of shares, and user sessions
- Quality of service guarantees with regard to number requests that can be outstanding against the server
- Stronger data integrity protection through the use of the HMAC-SHA256 hash algorithm
- Better throughput across networks with nonhomogeneous characteristics
- Better handling of intermittent losses of network connectivity
For more information, see the Microsoft SMB 2.0 protocol specification.