https://www.ibm.com/docs/en/db2-for-zos/13.0.0?topic=eydzddse-using-zos-dfsms-data-set-encryption-encrypt-data-sets-associated-particular-table
Db2 13 - Security - Using z/OS DFSMS data set encryption to encrypt the table space for a table
Db2 for z/OS supports z/OS DFSMS data set encryption for the data sets associated with a particular table.