In addition to the bug fixes, CIFS provides the following enhancements and changes in OES 2018 SP2.
Leasing is an enhancement to legacy Oplocks, which facilitates better file caching by the clients and thus improves the overall performance. It provides better performance compared to Oplocks by increasing the amount of caching and by reducing the number of cache break. For more information, see Section 5.3, Locks Management for CIFS.
NTLMSSP Disablement: You can disable the NTLMSSP authentication to avoid false login attempts in an AD only environment.
For more information, see Enabling or Disabling NTLMSSP Authentication.
Leasing: You can enable or disable the file leasing for SMB 2.1 or later connections for better file caching by the clients.
For more information, see Leasing.
The commands -Flop FILE-PATH, -Flov VOLUME-NAME and -Flon CONNECTION-NUMBER are introduced to include oplock or lease level information of open files.