The key factors to consider for implementing and enabling CIFS on your enterprise servers include the following:
Upgrading from OES 2 SP3 Linux to OES 2018 or later on your enterprise servers. For details, see Upgrading to OES 23.4
in the OES 23.4: Installation Guide.
Migrating from NetWare to an OES 2018 or later setup. For details see, Section 7.0, Migrating CIFS to OES.