vserver cifs prepare-to-downgrade

Description​

The vserver cifs prepare-to-downgrade command restores the CIFS configurations for Data ONTAP based on the input parameter disable-feature-set.

Parameters​

-disable-feature-set <downgrade version> - Data ONTAP Version

This parameter specifies the Data ONTAP release for which the CIFS configurations are restored. The value can be one of the following:

• 8.3.1 - Restores the CIFS configurations for Data ONTAP release 8.3.1. These features include:

  • FPolicy "close with read" filters from FPolicy events.

  • CIFS server options -guest-unix-user and -is-admin-users-mapped-to-root-enabled.

  • CIFS security option is-smb-encryption-required.

  • Storage-Level Access Guard (SLAG) for qtrees.

  • CIFS share property encrypt-data.

• 8.3.2 - Restores the CIFS configurations for Data ONTAP release 8.3.2. These features include:

  • CIFS server option -grant-unix-group-perms-to-others.

• 9.0.0 - Restores the CIFS configurations for Data ONTAP release 9.0.0. These features include:

  • Disable CIFS multichannel feature and close all multichannel connections.

  • Delete all the name-mapping entries that have a hostname or an address field configured.

  • Terminate all SMB 3.1 client connections.

  • Terminate all client connections that have large MTU negotiated.

  • Remove the symlink property no-strict-security.

  • Remove all symlink pathmap entries with locality freelink.