Converting all HFS files to zFS and expected that ZFS would need a new RESCLASS (not HFSSEC) but there is no ZFS in the RDT.
Do all current rules remain unchanged?
Release : 16.0
There is no zFS or zFSSEC resclass.
Nothing needs to be changed in Top Secret as far as the HFSSEC resclass; it will continue to work.
Distributed File Service zFS Administration
The above IBM doc contains the IBM REXX to migrate from HFS to zFS. Chapter 7 (page 63 Migrating data from HFS tp zFS.